0001800227-24-000011 | 10-K | XBRL Viewer

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STOCK-BASED COMPENSATION - Narrative (Details) $ / shares in Units, $ in Thousands				12 Months Ended
	Feb. 09, 2024 USD ($) shares	May 25, 2021 USD ($)	Nov. 05, 2020 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) plan $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award
Number of active stock-based compensation plans \| plan				1
Shares available for grant (shares) \| shares				31,000,000
Intrinsic value of stock options exercised				$ 11,300	$ 3,400	$ 135,100
Options outstanding, aggregate intrinsic value				98,053
Proceeds from the exercise of IAC stock options				130	0	1,496
Unrecognized compensation cost, net of estimated forfeitures				$ 269,600
Weighted-average period over which cost is expected to be recognized (in years)				3 years 10 months 24 days
Tax benefit recognized related to stock-based compensation				$ 17,200	20,000	101,800
Tax benefit recognized related to the exercise of stock options				$ 4,000	$ 1,700	$ 81,000
Angi Inc. \| Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award
Grant date fair value of award	$ 67,400
Withholding rate (as a percent)	50.00%
Cash withholding obligation equivalent (shares) \| shares	14,100,000
Cash required to settle vested and unvested interests at fair value	$ 32,500
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Weighted average grant date fair value of restricted common stock granted (USD per share) \| $ / shares				$ 53.41	$ 114.27	$ 171.53
Equity instruments other than options, outstanding (in shares) \| shares				1,822,000	1,458,000
Fair value of RSUs that vested during the period				$ 8,300	$ 12,700	$ 15,900
Restricted Stock Units (RSUs) \| Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares required to settle vested and unvested interests at fair value (shares) \| shares	900,000
Cash withholding obligation	$ 43,500
Withholding rate (as a percent)	50.00%
Restricted Stock Units (RSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (in years)				4 years
Restricted Stock Units (RSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (in years)				5 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award
Equity instruments other than options, outstanding (in shares) \| shares				0	0
Market-Based Stock Units
Share-based Compensation Arrangement by Share-based Payment Award
Equity instruments other than options, outstanding (in shares) \| shares				0	0
Stock Options \| Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares required to settle vested and unvested interests at fair value (shares) \| shares	2,600,000
Cash withholding obligation	$ 49,600
Withholding rate (as a percent)	50.00%
Options outstanding, aggregate intrinsic value	$ 99,300
Cash withholding obligation equivalent (shares) \| shares	900,000
Proceeds from the exercise of IAC stock options	$ 36,500
Stock Appreciation Rights (SARs) \| Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares required to settle vested and unvested interests at fair value (shares) \| shares	200,000
Withholding rate (as a percent)	50.00%
Cash required to settle vested and unvested interests at fair value	$ 10,400
Old IAC Plan
Share-based Compensation Arrangement by Share-based Payment Award
Stated term (in years)				10 years
RSA Agreement \| Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award
Weighted average grant date fair value of restricted common stock granted (USD per share) \| $ / shares			$ 61.06
Grant date fair value of award			$ 183,200
Incremental compensation cost		$ 228,300
Incremental compensation cost from modification recognized in year of modification		10,100
Incremental compensation cost, to be recognized over the remaining vesting period		131,000		$ 94,900
RSA Agreement \| Restricted Stock Awards \| IAC
Share-based Compensation Arrangement by Share-based Payment Award
Incremental compensation cost		141,100
RSA Agreement \| Restricted Stock Awards \| Vimeo
Share-based Compensation Arrangement by Share-based Payment Award
Incremental compensation cost		$ 87,300
RSA Agreement \| Restricted Stock Awards \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award
Term of employment agreement and restricted stock agreement (in years)			10 years
Shares authorized for issuance (in shares) \| shares			3,000,000
Vesting period (in years)			10 years
RSA Agreement \| Restricted Stock Awards \| Chief Executive Officer \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (in years)			10 years
RSA Agreement \| Restricted Stock Awards \| Chief Executive Officer \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (in years)			12 years

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for credit losses
Movement in Valuation Allowances and Reserves
Balance at beginning of period	$ 50,971	$ 36,637	$ 27,178
Charges to Earnings	87,729	116,553	89,893
Charges to Other Accounts	174	109	123
Deductions	(106,495)	(102,328)	(80,557)
Balance at end of period	32,379	50,971	36,637
Deferred tax valuation allowance
Movement in Valuation Allowances and Reserves
Balance at beginning of period	124,012	112,640	111,691
Charges to Earnings	4,373	(4,497)	(1,620)
Charges to Other Accounts	3,673	15,869	2,569
Deductions	0	0	0
Balance at end of period	132,058	124,012	112,640
Other reserves
Movement in Valuation Allowances and Reserves
Balance at beginning of period	1,880	2,530	0
Balance at end of period	$ 1,391	$ 1,880	$ 2,530

LONG-TERM DEBT (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Schedule of Long-term Debt

Long-term debt consists of:


	December 31,
	2023		2022
	(In thousands)
Dotdash Meredith Debt
Dotdash Meredith Term Loan A ("Dotdash Meredith Term Loan A") due December 1, 2026	$	315,000	$	332,500
Dotdash Meredith Term Loan B ("Dotdash Meredith Term Loan B") due December 1, 2028	1,225,000		1,237,500
Total Dotdash Meredith long-term debt	1,540,000		1,570,000
Less: current portion of Dotdash Meredith long-term debt	30,000		30,000
Less: original issue discount	4,470		5,310
Less: unamortized debt issuance costs	8,423		10,215
Total Dotdash Meredith long-term debt, net	1,497,107		1,524,475

ANGI Group Debt
3.875% ANGI Group Senior Notes due August 15, 2028 ("ANGI Group Senior Notes"); interest payable each February 15 and August 15	500,000		500,000

Less: unamortized debt issuance costs	3,953		4,716
Total ANGI Group long-term debt, net	496,047		495,284

Total long-term debt, net	$	1,993,154	$	2,019,759

Schedule of Debt Instrument Redemption

These notes may be redeemed at the redemption prices set forth below, plus accrued and unpaid interest thereon, if any, to the applicable redemption date, if redeemed during the twelve-month period beginning on August 15 of the years indicated below:


Year	Percentage
2023	101.938	%
2024	100.969	%
2025 and thereafter	100.000	%

Schedule of Aggregate Contractual Maturities of Long-term Debt

Long-term debt maturities at December 31, 2023 are summarized in the table below:


Years Ending December 31,	(In thousands)
2024	$	30,000
2025	47,500
2026	275,000
2027	12,500
2028	1,675,000

Total	2,040,000
Less: current portion of long-term debt	30,000
Less: unamortized original issue discount	4,470
Less: unamortized debt issuance costs	12,376
Total long-term debt, net	$	1,993,154

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

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+ Details

LONG-TERM DEBT - Narrative (Details) - USD ($)		1 Months Ended	11 Months Ended	12 Months Ended				37 Months Ended	83 Months Ended
LONG-TERM DEBT - Narrative (Details) - USD ($)	Dec. 01, 2021	Jan. 31, 2024	Dec. 01, 2026	Dec. 31, 2025	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2024	Dec. 01, 2028	Aug. 02, 2021
Dotdash Meredith
Debt Instrument [Line Items]
Capital contributions					$ 510,000,000
Capital distributions					405,000,000
Dotdash Meredith \| Subsequent Event
Debt Instrument [Line Items]
Capital distributions		$ 105,000,000
Interest rate swaps
Debt Instrument [Line Items]
Interest rate swaps expected to be reclassified into interest expense within next twelve months					3,000,000
Derivative liability, noncurrent					900,000
Dotdash Meredith Credit Agreement
Debt Instrument [Line Items]
Debt covenant, net leverage ratio amount, maximum					250,000,000
Dotdash Meredith Credit Agreement \| Term Loan
Debt Instrument [Line Items]
Debt covenant, excess cash flow sweet provision amount					80,000,000
Debt covenant, minimum amount needed to be drawn					$ 1.00
Debt covenant, percentage of face					1.02
Debt covenant, outstanding face amount of undrawn letters of credit, minimum					$ 25,000,000
Consolidated net leverage ratio (no greater than)					5.5
Debt covenant, net leverage ratio that would limit dividends					4.0
Dotdash Meredith Term Loan A Facility \| Term Loan
Debt Instrument [Line Items]
Term of debt instrument (years)	5 years
Face amount of debt instrument	$ 350,000,000
Stated interest rate (as a percent)					7.69%	5.91%
Dotdash Meredith Term Loan A Facility \| Term Loan \| Forecast
Debt Instrument [Line Items]
Quarterly repayments of principal			$ 13,100,000	$ 8,800,000				$ 4,400,000
Dotdash Meredith Term Loan A Facility \| Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Adjustment to interest rate					0.10%
Basis spread on variable rate (as a percent)					2.25%
Dotdash Meredith Term Loan B Facility \| Interest rate swaps \| Dotdash Meredith
Debt Instrument [Line Items]
Stated interest rate (as a percent)					7.92%
Notional amount					$ 350,000,000
Weighted average interest rate					3.82%
Dotdash Meredith Term Loan B Facility \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Interest rate swaps \| Dotdash Meredith
Debt Instrument [Line Items]
Adjustment to interest rate					0.10%
Dotdash Meredith Term Loan B Facility \| Base Rate \| Interest rate swaps \| Dotdash Meredith
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)					4.00%
Dotdash Meredith Term Loan B Facility \| Term Loan
Debt Instrument [Line Items]
Term of debt instrument (years)	7 years
Face amount of debt instrument	$ 1,250,000,000
Stated interest rate (as a percent)					9.44%	8.22%
Dotdash Meredith Term Loan B Facility \| Term Loan \| Forecast
Debt Instrument [Line Items]
Quarterly repayments of principal									$ 3,100,000
Dotdash Meredith Term Loan B Facility \| Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Adjustment to interest rate					0.10%
Adjustment to interest rate two					0.15%
Adjustment to interest rate three					0.25%
Basis spread on variable rate (as a percent)					4.00%
Dotdash Meredith Term Loan B Facility \| Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Interest rate swaps
Debt Instrument [Line Items]
Adjustment to interest rate					1.33%
Dotdash Meredith Term Loan B Facility \| Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)					0.50%
Dotdash Meredith Revolving Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Term of debt instrument (years)	5 years
Maximum borrowing capacity	$ 150,000,000
Outstanding borrowings under the credit facility					$ 0	$ 0
Commitment fee (in basis points)					0.40%	0.40%
ANGI 3.875% Senior Notes \| Senior Notes
Debt Instrument [Line Items]
Secured leverage ratio, maximum					3.75
ANGI Group Credit Facility
Debt Instrument [Line Items]
Principal payments on ANGI Group Term Loan							$ 220,000,000
ANGI Group Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity										$ 250,000,000

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Contingent Consideration Arrangements
Contingent Consideration Arrangements
Balance at beginning of period	$ 0	$ (612)
Fair value adjustments included in earnings		612
Balance at end of period		0
Warrant
Warrant
Balance at beginning of period	46,799	109,294
Fair value adjustments included in earnings	2,832	(62,495)
Balance at end of period	$ 49,631	$ 46,799

CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue	$ 4,365,235	$ 5,235,280	$ 3,699,627
Operating costs and expenses:
Cost of revenue (exclusive of depreciation shown separately below)	1,343,254	1,933,705	1,296,282
Selling and marketing expense	1,576,229	1,914,878	1,362,300
General and administrative expense	891,958	991,983	797,448
Product development expense	334,491	318,028	230,810
Depreciation	175,096	130,986	75,015
Amortization of intangibles	295,970	307,718	74,839
Goodwill impairment	9,000	112,753	0
Total operating costs and expenses	4,625,998	5,710,051	3,836,694
Operating loss	(260,763)	(474,771)	(137,067)
Interest expense	(157,632)	(110,165)	(34,264)
Unrealized gain (loss) on investment in MGM Resorts International	721,668	(723,515)	789,283
Other income (expense), net	63,862	(217,785)	111,854
Earnings (loss) from continuing operations before income taxes	367,135	(1,526,236)	729,806
Income tax (provision) benefit	(108,818)	331,087	(138,990)
Net earnings (loss) from continuing operations	258,317	(1,195,149)	590,816
Earnings (loss) from discontinued operations, net of taxes	0	2,694	(1,831)
Net earnings (loss)	258,317	(1,192,455)	588,985
Net loss attributable to noncontrolling interests	7,625	22,285	8,562
Net earnings (loss) attributable to IAC shareholders	$ 265,942	$ (1,170,170)	$ 597,547
Per share information from continuing operations:
Basic earnings (loss) per share (USD per share)	$ 3.07	$ (13.58)	$ 6.72
Diluted earnings (loss) per share (USD per share)	2.97	(13.58)	6.33
Per share information attributable to IAC Common Stock and Class B common stock shareholders:
Basic earnings (loss) per share (USD per share)	3.07	(13.55)	6.70
Diluted earnings (loss) per share (USD per share)	$ 2.97	$ (13.55)	$ 6.31
Stock-based compensation expense by function:
Stock-based compensation expense	$ 117,181	$ 123,476	$ 79,487
Cost of revenue
Stock-based compensation expense by function:
Stock-based compensation expense	1,613	47	57
Selling and marketing expense
Stock-based compensation expense by function:
Stock-based compensation expense	8,808	8,293	5,009
General and administrative expense
Stock-based compensation expense by function:
Stock-based compensation expense	93,506	99,993	67,664
Product development expense
Stock-based compensation expense by function:
Stock-based compensation expense	$ 13,254	$ 15,143	$ 6,757

GOODWILL AND INTANGIBLE ASSETS

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND INTANGIBLE ASSETS

Goodwill and intangible assets, net are as follows:


	December 31,
	2023		2022
	(In thousands)
Goodwill	$	3,024,266	$	3,030,168
Intangible assets with indefinite lives	544,228		631,097
Intangible assets with definite lives, net of accumulated amortization	330,477		538,944
Total goodwill and intangible assets, net	$	3,898,971	$	4,200,209

The following table presents the balance of goodwill by reportable segment, including the changes in the carrying value of goodwill and accumulated impairment losses, for the year ended December 31, 2023:


	Balance at December 31, 2022		Impairment		Foreign Exchange Translation		Balance at December 31, 2023		Accumulated Impairment Losses at December 31, 2023
	(In thousands)
Dotdash Meredith
Digital	$	1,497,642	$	—	$	—	$	1,497,642	$	(198,329)
Total Dotdash Meredith	1,497,642		—		—		1,497,642		(198,329)

Angi Inc.
Ads and Leads	761,571		—		—		761,571		—
Services	51,095		—		—		51,095		—
International	70,619		—		3,098		73,717		—
Total Angi Inc.	883,285		—		3,098		886,383		—

Emerging & Other	649,241		(9,000)		—		640,241		(95,748)
Search	—		—		—		—		(981,308)
Total	$	3,030,168	$	(9,000)	$	3,098	$	3,024,266	$	(1,275,385)

During the third quarter of 2023, the Company reassessed the fair value of the Mosaic Group reporting unit (included within Emerging & Other) and recorded a goodwill impairment of $9.0 million. The accumulated impairment losses at December 31, 2023 within Emerging & Other is attributable to Mosaic Group. See “Note 2—Summary of Significant Accounting Policies” for further discussion of the Company’s assessments of impairment of goodwill. As a result of impairments previously recorded, the Search reportable segment has no goodwill.


	Balance at December 31, 2021		Deductions		Reporting Unit Allocation Adjustment		Impairment		Foreign Exchange Translation		Balance at December 31, 2022		Accumulated Impairment Losses at December 31, 2022
	(In thousands)
Dotdash Meredith
Digital	$	1,567,843	$	(70,201)	$	—	$	—	$	—	$	1,497,642	$	(198,329)
Total Dotdash Meredith	1,567,843		(70,201)		—		—		—		1,497,642		(198,329)

Angi Inc.
Angi Inc.	916,375		(816)		(903,469)		—		(12,090)		—		—
Ads and Leads	—		—		761,571		—		—		761,571		—
Services	—		—		51,095		—		—		51,095		—
International	—		—		64,798		—		5,821		70,619		—
Total Angi Inc.	916,375		(816)		(26,005)		—		(6,269)		883,285		—

Emerging & Other	742,392		(6,403)		26,005		(112,753)		—		649,241		(112,753)
Search	—		—		—		—		—		—		(981,308)
Total	$	3,226,610	$	(77,420)	$	—	$	(112,753)	$	(6,269)	$	3,030,168	$	(1,292,390)

In the fourth quarter of 2022, the Angi Inc. segment presentation was changed to reflect its then four operating segments, which included (i) Ads and Leads, (ii) Services, (iii) Roofing and (iv) International (includes Europe and Canada). Goodwill was allocated to reflect the new segment presentation. The allocation of goodwill to Roofing and Canada reflected their respective historical carrying values because of the lack of operational integration with Angi North America; the allocation of the remaining goodwill to Ads and Leads and Services was based upon their relative fair values as of October 1, 2022. Roofing was sold on November 1, 2023 and prior periods have been recast to reflect Roofing within Emerging & Other, as described in “Note 1—Organization.”

Deductions at Dotdash Meredith are primarily due to adjustments to the fair values of certain assets acquired and liabilities assumed related to Meredith, acquired by Dotdash on December 1, 2021, and the sale of a business at Dotdash Meredith. Deductions at Emerging & Other are due to the sales of Bluecrew and the Daily Burn business at Mosaic Group, as well as working capital adjustments recorded in the second quarter of 2022 related to Total Home Roofing, which comprises the Roofing reporting unit included within Emerging & Other, acquired on July 1, 2021. During 2022, the Company reassessed the fair values of the Mosaic Group and Roofing reporting units and recorded goodwill impairments of $86.7 million and $26.0 million, respectively, which comprise the accumulated impairment losses at December 31, 2022 within Emerging & Other. As a result of impairments previously recorded, the Search reportable segment has no goodwill.

See “Note 2—Summary of Significant Accounting Policies” for further discussion of the Company’s assessments of impairment of goodwill and indefinite-lived intangible assets.

At December 31, 2023 and 2022, intangible assets with definite lives are as follows:


	December 31, 2023
	Gross Carrying Amount		Accumulated Amortization		Net		Weighted-Average Useful Life
	(In thousands)						(Years)
Advertiser relationships	$	297,000	$	(154,819)	$	142,181	5.0
Technology	198,344		(196,816)		1,528		3.5
Licensee relationships	171,000		(85,496)		85,504		4.9
Trade names	120,759		(55,541)		65,218		9.2
Content	104,939		(88,845)		16,094		2.9
Customer lists and user base	68,661		(48,721)		19,940		6.4
Service professional relationships	6,419		(6,407)		12		2.7

Total	$	967,122	$	(636,645)	$	330,477	5.1


	December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Net		Weighted-Average Useful Life
	(In thousands)						(Years)
Advertiser relationships	$	297,000	$	(87,199)	$	209,801	5.0
Technology	198,224		(171,660)		26,564		3.5
Licensee relationships	171,000		(45,152)		125,848		4.9
Trade names	120,711		(37,677)		83,034		9.2
Content	106,639		(61,407)		45,232		2.9
Customer lists and user base	68,575		(41,868)		26,707		6.4
Service professional relationships	97,658		(97,537)		121		3.0
Subscriber relationships	61,200		(39,563)		21,637		1.9
Total	$	1,121,007	$	(582,063)	$	538,944	4.7

The decreases in the gross carrying amount and accumulated amortization of intangibles assets from December 31, 2022 were due primarily to the retirement of certain fully amortized service professional relationships at Angi Ads and Leads and subscriber relationships at Dotdash Meredith Print of $90.5 million and $61.2 million, respectively, as these assets are no longer in use.

At December 31, 2023, amortization of intangible assets with definite lives for each of the next five years and thereafter is estimated to be as follows:


Years Ending December 31,	(In thousands)
2024	$	133,662
2025	84,475
2026	69,057
2027	15,142
2028	5,519
Thereafter	22,622
Total	$	330,477

LONG-TERM DEBT - Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Less: current portion of Dotdash Meredith long-term debt	$ 30,000	$ 30,000
Less: original issue discount	4,470
Less: unamortized debt issuance costs	12,376
Long-term debt, net	1,993,154	2,019,759
Dotdash Meredith
Debt Instrument [Line Items]
Long-term debt	1,540,000	1,570,000
Less: current portion of Dotdash Meredith long-term debt	30,000	30,000
Less: original issue discount	4,470	5,310
Less: unamortized debt issuance costs	8,423	10,215
Long-term debt, net	1,497,107	1,524,475
Angi Inc.
Debt Instrument [Line Items]
Less: unamortized debt issuance costs	3,953	4,716
Long-term debt, net	496,047	$ 495,284
Term Loan \| Dotdash Meredith Term Loan A Facility
Debt Instrument [Line Items]
Long-term debt	$ 315,000
Stated interest rate (as a percent)	7.69%	5.91%
Term Loan \| Dotdash Meredith Term Loan A Facility \| Dotdash Meredith
Debt Instrument [Line Items]
Long-term debt	$ 315,000	$ 332,500
Term Loan \| Dotdash Meredith Term Loan B Facility
Debt Instrument [Line Items]
Long-term debt	$ 1,200,000
Stated interest rate (as a percent)	9.44%	8.22%
Term Loan \| Dotdash Meredith Term Loan B Facility \| Dotdash Meredith
Debt Instrument [Line Items]
Long-term debt	$ 1,225,000	$ 1,237,500
Senior Notes \| ANGI 3.875% Senior Notes \| Angi Inc.
Debt Instrument [Line Items]
Long-term debt	$ 500,000	$ 500,000
Stated interest rate (as a percent)	3.875%

SEGMENT INFORMATION - Revenue by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenue	$ 4,365,235	$ 5,235,280	$ 3,699,627
Angi Inc.
Segment Reporting Information [Line Items]
Revenue			1,619,317
Angi Inc. \| United States
Segment Reporting Information [Line Items]
Revenue	1,242,941	1,663,317	1,517,022
Operating Segments \| Dotdash Meredith
Segment Reporting Information [Line Items]
Revenue	1,694,893	1,934,699	456,273
Operating Segments \| Dotdash Meredith \| Digital
Segment Reporting Information [Line Items]
Revenue	892,426	931,482	367,134
Operating Segments \| Dotdash Meredith \| Print
Segment Reporting Information [Line Items]
Revenue	823,456	1,026,128	92,002
Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	1,358,748	1,764,355	1,619,317
Operating Segments \| Angi Inc. \| United States
Segment Reporting Information [Line Items]
Revenue	1,242,941	1,663,317	1,517,022
Operating Segments \| Angi Inc. \| Ads and Leads \| United States
Segment Reporting Information [Line Items]
Revenue	1,124,908	1,282,061	1,227,074
Operating Segments \| Angi Inc. \| Services \| United States
Segment Reporting Information [Line Items]
Revenue	118,033	381,256	289,948
Operating Segments \| Angi Inc. \| International
Segment Reporting Information [Line Items]
Revenue	115,807	101,038	102,295
Operating Segments \| Search
Segment Reporting Information [Line Items]
Revenue	629,038	731,431	873,346
Operating Segments \| Emerging & Other
Segment Reporting Information [Line Items]
Revenue	695,057	823,465	753,203
Operating Segments \| Emerging & Other \| Services
Segment Reporting Information [Line Items]
Revenue	4,988	6,437	7,501
Intersegment eliminations
Segment Reporting Information [Line Items]
Revenue	(12,501)	(18,670)	(2,512)
Intersegment eliminations \| Dotdash Meredith
Segment Reporting Information [Line Items]
Revenue	$ (20,989)	$ (22,911)	$ (2,863)

SEGMENT INFORMATION - Reconciliation of Adjusted EBITDA to Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		$ (260,763)	$ (474,771)	$ (137,067)
Stock-based compensation expense		117,181	123,476	79,487
Depreciation		175,096	130,986	75,015
Amortization of intangibles		295,970	307,718	74,839
Acquisition-related Contingent Consideration Fair Value Arrangements	$ (15,000)		(612)	14,992
Goodwill Impairment		9,000	112,753	0
Adjusted EBITDA		336,484	199,550	107,266
Interest expense		(157,632)	(110,165)	(34,264)
Unrealized gain (loss) on investment in MGM Resorts International		721,668	(723,515)	789,283
Other income (expense), net		63,862	(217,785)	111,854
Earnings (loss) from continuing operations before income taxes		367,135	(1,526,236)	729,806
Income tax (provision) benefit		(108,818)	331,087	(138,990)
Net earnings (loss) from continuing operations		258,317	(1,195,149)	590,816
Earnings (loss) from discontinued operations, net of taxes		0	2,694	(1,831)
Net earnings (loss)		258,317	(1,192,455)	588,985
Net loss attributable to noncontrolling interests		7,625	22,285	8,562
Net earnings (loss) attributable to IAC shareholders		265,942	(1,170,170)	597,547
Dotdash Meredith
Segment Reporting, Other Significant Reconciling Item
Goodwill Impairment		0	0
Dotdash Meredith \| Digital
Segment Reporting, Other Significant Reconciling Item
Goodwill Impairment		0	0
Angi Inc.
Segment Reporting, Other Significant Reconciling Item
Goodwill Impairment		0	0
Angi Inc. \| Ads and Leads
Segment Reporting, Other Significant Reconciling Item
Goodwill Impairment		0	0
Angi Inc. \| Services
Segment Reporting, Other Significant Reconciling Item
Goodwill Impairment		0	0
Angi Inc. \| International
Segment Reporting, Other Significant Reconciling Item
Goodwill Impairment		0	0
Search
Segment Reporting, Other Significant Reconciling Item
Goodwill Impairment		0	0
Emerging & Other
Segment Reporting, Other Significant Reconciling Item
Goodwill Impairment		9,000	112,753
Operating Segments \| Dotdash Meredith
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		(150,738)	(188,091)	7,176
Stock-based compensation expense		23,501	21,755	1,438
Depreciation		70,257	41,385	6,165
Amortization of intangibles		279,737	277,712	18,851
Acquisition-related Contingent Consideration Fair Value Arrangements			(612)	(8)
Adjusted EBITDA		222,757	152,149	33,622
Operating Segments \| Dotdash Meredith \| Digital
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		(16,656)	(66,629)	73,980
Stock-based compensation expense		8,159	20,596	1,438
Depreciation		24,772	27,569	4,257
Amortization of intangibles		226,694	205,772	11,512
Acquisition-related Contingent Consideration Fair Value Arrangements			(612)	(8)
Adjusted EBITDA		242,969	186,696	91,179
Operating Segments \| Dotdash Meredith \| Print
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		(3,500)	(54,448)	(6,527)
Stock-based compensation expense		1,381	1,023	0
Depreciation		13,302	12,620	1,827
Amortization of intangibles		53,043	71,940	7,339
Acquisition-related Contingent Consideration Fair Value Arrangements			0	0
Adjusted EBITDA		64,226	31,135	2,639
Operating Segments \| Dotdash Meredith \| Other
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		(130,582)	(67,014)	(60,277)
Stock-based compensation expense		13,961	136	0
Depreciation		32,183	1,196	81
Amortization of intangibles		0	0	0
Acquisition-related Contingent Consideration Fair Value Arrangements			0	0
Adjusted EBITDA		(84,438)	(65,682)	(60,196)
Operating Segments \| Angi Inc.
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		(26,498)	(75,620)	(67,917)
Stock-based compensation expense		43,414	50,802	28,171
Depreciation		93,604	77,523	59,025
Amortization of intangibles		7,958	13,774	16,097
Acquisition-related Contingent Consideration Fair Value Arrangements			0	0
Goodwill Impairment		0	0
Adjusted EBITDA		118,478	66,479	35,376
Operating Segments \| Angi Inc. \| Other
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		(61,377)	(61,794)	(56,196)
Stock-based compensation expense		11,301	11,928	10,121
Depreciation		0	0	0
Amortization of intangibles		0	0	9
Acquisition-related Contingent Consideration Fair Value Arrangements			0	0
Goodwill Impairment		0	0
Adjusted EBITDA		(50,076)	(49,866)	(46,066)
Operating Segments \| Angi Inc. \| Ads and Leads
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		50,043	85,593	65,485
Stock-based compensation expense		23,145	19,972	12,722
Depreciation		66,211	52,737	46,025
Amortization of intangibles		7,958	10,650	12,028
Acquisition-related Contingent Consideration Fair Value Arrangements			0	0
Goodwill Impairment		0	0
Adjusted EBITDA		147,357	168,952	136,260
Operating Segments \| Angi Inc. \| Services
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		(23,450)	(95,166)	(63,984)
Stock-based compensation expense		7,586	18,012	4,672
Depreciation		23,987	21,904	7,049
Amortization of intangibles		0	3,124	4,060
Acquisition-related Contingent Consideration Fair Value Arrangements			0	0
Goodwill Impairment		0	0
Adjusted EBITDA		8,123	(52,126)	(48,203)
Operating Segments \| Angi Inc. \| International
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		8,286	(4,253)	(13,222)
Stock-based compensation expense		1,382	890	656
Depreciation		3,406	2,882	5,951
Amortization of intangibles		0	0	0
Acquisition-related Contingent Consideration Fair Value Arrangements			0	0
Goodwill Impairment		0	0
Adjusted EBITDA		13,074	(481)	(6,615)
Operating Segments \| Search
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		44,198	83,398	108,334
Stock-based compensation expense		0	0	0
Depreciation		85	88	47
Amortization of intangibles		0	0	0
Acquisition-related Contingent Consideration Fair Value Arrangements			0	0
Goodwill Impairment		0	0
Adjusted EBITDA		44,283	83,486	108,381
Operating Segments \| Emerging & Other
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		18,763	(156,839)	(31,334)
Stock-based compensation expense		1,805	2,373	632
Depreciation		3,996	2,438	1,683
Amortization of intangibles		8,275	16,232	39,891
Acquisition-related Contingent Consideration Fair Value Arrangements			0	15,000
Goodwill Impairment		9,000	112,753
Adjusted EBITDA		41,839	(23,043)	25,872
Corporate
Segment Reporting, Other Significant Reconciling Item
Operating (Loss) Income		(146,488)	(137,619)	(153,326)
Stock-based compensation expense		48,461	48,546	49,246
Depreciation		7,154	9,552	8,095
Amortization of intangibles		0	0	0
Acquisition-related Contingent Consideration Fair Value Arrangements			0	0
Goodwill Impairment		0	0
Adjusted EBITDA		$ (90,873)	$ (79,521)	$ (95,985)

LEASES - Weighted-Average Remaining Term and Discount Rate (Details)	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Remaining lease term (in years)	7 years 6 months	11 years 4 months 24 days
Discount rate (as a percent)	5.07%	5.22%

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Dec. 31, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

PENSION AND POSTRETIREMENT BENEFIT PLANS - Fair Value of Plan Assets (Details) - International - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	$ 488,701	$ 467,891
Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	8,199	7,613
Significant Other Observable Inputs (Level 2)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	0	0
Significant Unobservable Inputs (Level 3)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	480,502	460,278
Cash and cash equivalents
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	8,199	7,613
Cash and cash equivalents \| Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	8,199	7,613
Cash and cash equivalents \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	0	0
Cash and cash equivalents \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	0	0
Fixed income
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	399
Fixed income \| Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	0
Fixed income \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	0
Fixed income \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	399
Insurance annuity contracts
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	480,103	460,278
Insurance annuity contracts \| Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	0	0
Insurance annuity contracts \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	0	0
Insurance annuity contracts \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan, Plan Assets, Category [Line Items]
Total assets at fair value	$ 480,103	$ 460,278

- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References + Details

INCOME TAXES - Income before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
U.S.	$ 353,188	$ (1,320,332)	$ 758,538
Foreign	13,947	(205,904)	(28,732)
Earnings (loss) from continuing operations before income taxes	$ 367,135	$ (1,526,236)	$ 729,806

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(11))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 30
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-30

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 31
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-31

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 235
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479557/942-235-S99-1

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 25
-Paragraph 1
-SubTopic 20
-Topic 940
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481913/940-20-25-1

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(10))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(15))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1

+ Details

SEGMENT INFORMATION - Revenue Disaggregated by Service (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenue	$ 4,365,235	$ 5,235,280	$ 3,699,627
Angi Inc.
Segment Reporting Information [Line Items]
Revenue			1,619,317
Operating Segments \| Dotdash Meredith
Segment Reporting Information [Line Items]
Revenue	1,694,893	1,934,699	456,273
Operating Segments \| Dotdash Meredith \| Digital
Segment Reporting Information [Line Items]
Revenue	892,426	931,482	367,134
Operating Segments \| Dotdash Meredith \| Print
Segment Reporting Information [Line Items]
Revenue	823,456	1,026,128	92,002
Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	1,358,748	1,764,355	1,619,317
Operating Segments \| Search
Segment Reporting Information [Line Items]
Revenue	629,038	731,431	873,346
Operating Segments \| Emerging & Other
Segment Reporting Information [Line Items]
Revenue	695,057	823,465	753,203
Operating Segments \| Emerging & Other \| Roofing
Segment Reporting Information [Line Items]
Revenue	90,557	137,509	68,028
Operating Segments \| Emerging & Other \| Services
Segment Reporting Information [Line Items]
Revenue	4,988	6,437	7,501
Intersegment eliminations
Segment Reporting Information [Line Items]
Revenue	(12,501)	(18,670)	(2,512)
Intersegment eliminations \| Dotdash Meredith
Segment Reporting Information [Line Items]
Revenue	(20,989)	(22,911)	(2,863)
United States \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	1,242,941	1,663,317	1,517,022
United States \| Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	1,242,941	1,663,317	1,517,022
United States \| Operating Segments \| Angi Inc. \| Services
Segment Reporting Information [Line Items]
Revenue	118,033	381,256	289,948
International \| Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	115,807	101,038	102,295
Display advertising \| Operating Segments \| Dotdash Meredith \| Digital
Segment Reporting Information [Line Items]
Revenue	560,786	621,714	236,660
Performance marketing \| Operating Segments \| Dotdash Meredith \| Digital
Segment Reporting Information [Line Items]
Revenue	231,087	198,441	116,195
Performance marketing \| Operating Segments \| Dotdash Meredith \| Print
Segment Reporting Information [Line Items]
Revenue	45,219	55,484	8,093
Licensing and other \| Operating Segments \| Dotdash Meredith \| Digital
Segment Reporting Information [Line Items]
Revenue	100,553	111,327	14,279
Subscription \| Operating Segments \| Dotdash Meredith \| Print
Segment Reporting Information [Line Items]
Revenue	329,357	422,700	34,634
Advertising \| Operating Segments \| Dotdash Meredith \| Print
Segment Reporting Information [Line Items]
Revenue	203,210	260,282	13,678
Advertising \| Operating Segments \| Search
Segment Reporting Information [Line Items]
Revenue	626,549	726,422	859,319
Advertising \| Operating Segments \| Emerging & Other
Segment Reporting Information [Line Items]
Revenue	13,514	18,249	22,028
Google advertising \| Operating Segments \| Search
Segment Reporting Information [Line Items]
Revenue	582,481	525,987	675,892
Google advertising \| Operating Segments \| Emerging & Other
Segment Reporting Information [Line Items]
Revenue	946	2,192	2,981
Non-Google advertising \| Operating Segments \| Search
Segment Reporting Information [Line Items]
Revenue	44,068	200,435	183,427
Non-Google advertising \| Operating Segments \| Emerging & Other
Segment Reporting Information [Line Items]
Revenue	12,568	16,057	19,047
Project and Other Print \| Operating Segments \| Dotdash Meredith \| Print
Segment Reporting Information [Line Items]
Revenue	128,354	154,807	16,414
Newsstand \| Operating Segments \| Dotdash Meredith \| Print
Segment Reporting Information [Line Items]
Revenue	117,316	132,855	19,183
Ads and Leads \| United States \| Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	1,124,908	1,282,061	1,227,074
Consumer connection \| United States \| Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	781,089	954,735	898,422
Consumer connection \| International \| Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	92,635	71,851	68,686
Advertising \| United States \| Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	290,799	265,466	252,206
Membership subscription \| United States \| Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	52,305	60,411	68,062
Other \| United States \| Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	715	1,449	8,384
Service professional membership subscription \| International \| Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	22,548	28,192	32,367
Advertising and other \| International \| Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Revenue	624	995	1,242
Other \| Operating Segments \| Search
Segment Reporting Information [Line Items]
Revenue	2,489	5,009	14,027
Subscription \| Operating Segments \| Emerging & Other
Segment Reporting Information [Line Items]
Revenue	343,539	368,401	367,159
Marketplace \| Operating Segments \| Emerging & Other
Segment Reporting Information [Line Items]
Revenue	226,612	261,314	243,970
Media production and distribution \| Operating Segments \| Emerging & Other
Segment Reporting Information [Line Items]
Revenue	$ 15,847	$ 31,555	$ 44,517

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Advertising Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Advertising expense	$ 858.1	$ 1,000.0	$ 877.0

INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Schedule of Income before Income Taxes

U.S. and foreign earnings (loss) before income taxes and noncontrolling interests are as follows:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
U.S.	$	353,188	$	(1,320,332)	$	758,538
Foreign	13,947		(205,904)		(28,732)
Total	$	367,135	$	(1,526,236)	$	729,806

Schedule of Components of Income Tax Expense (Benefit)

The components of the income tax provision (benefit) are as follows:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Current income tax provision (benefit):
Federal	$	1,474	$	777	$	(5,818)
State	8,998		4,712		4,751
Foreign	9,554		1,182		6,680
Current income tax provision (benefit)	20,026		6,671		5,613

Deferred income tax provision (benefit):
Federal	79,941		(252,022)		111,755
State	9,153		(44,335)		18,063
Foreign	(302)		(41,401)		3,559
Deferred income tax provision (benefit)	88,792		(337,758)		133,377
Income tax provision (benefit)	$	108,818	$	(331,087)	$	138,990

Schedule of Deferred Tax Assets and Liabilities

The tax effects of cumulative temporary differences that give rise to significant deferred tax assets and deferred tax liabilities are presented below. The valuation allowance relates to deferred tax assets for which it is more likely than not that the tax benefit will not be realized.


	December 31,
	2023		2022
	(In thousands)
Deferred tax assets:
Net operating loss carryforwards	$	435,318	$	458,603
Long-term lease liabilities	112,178		137,869
Capitalized research & development expenditures	91,550		74,179
Tax credit carryforwards	72,369		64,903
Accrued expenses	53,551		58,697
Other	101,356		104,948
Total deferred tax assets	866,322		899,199
Less: valuation allowance	(132,058)		(124,012)
Net deferred tax assets	734,264		775,187

Deferred tax liabilities:
Investment in MGM Resorts International	(383,170)		(212,390)
Investment in subsidiaries	(226,898)		(225,375)
Intangible assets, net of accumulated amortization	(174,933)		(219,856)
Right-of-use assets	(71,531)		(100,643)
Capitalized software, equipment, buildings, land and leasehold improvements, net	(13,639)		(46,740)
Other	(27,029)		(44,922)
Total deferred tax liabilities	(897,200)		(849,926)
Net deferred tax liabilities	$	(162,936)	$	(74,739)

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the income tax provision (benefit) to the amounts computed by applying the statutory federal income tax rate to earnings before income taxes is shown as follows:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Income tax provision (benefit) at the federal statutory rate of 21%	$	77,098	$	(320,510)	$	153,259
State income taxes, net of effect of federal tax benefit	12,542		(26,708)		24,289
Research credit	(11,973)		(19,041)		(5,094)
Non-deductible executive compensation	10,383		12,359		22,358
Stock-based compensation	2,357		(2,155)		(91,729)
Non-deductible goodwill impairment	1,659		15,764		—


Deferred tax adjustment for enacted changes in tax laws and rates	407		(7,152)		4,049
Change in judgement on beginning of the year valuation allowance	(240)		3,523		20,248


Other, net	16,585		12,833		11,610
Income tax provision (benefit)	$	108,818	$	(331,087)	$	138,990

Schedule of Income Tax Contingencies

A reconciliation of the beginning and ending amount of unrecognized tax benefits, including penalties but excluding interest, is as follows:


	December 31,
	2023		2022		2021
	(In thousands)
Balance at January 1	$	16,013	$	17,449	$	18,233
Additions for tax positions related to the current year	5,187		5,557		2,855
Settlements	(2,505)		(7,100)		(1,427)
Additions for tax positions of prior years	1,008		1,715		3,420
Reductions for tax positions of prior years	(701)		(1,608)		(1,116)
Expiration of applicable statutes of limitations	—		—		(4,516)
Balance at December 31	$	19,002	$	16,013	$	17,449

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Capitalized Contract Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Capitalized Contract Cost [Line Items]
Current	$ 44,424	$ 47,856
Non-current	6,058	5,667
Total	50,482	53,523
Sales Commissions
Capitalized Contract Cost [Line Items]
Current	36,589	39,590
Non-current	6,058	5,667
Total	42,647	45,257
App Store Fees
Capitalized Contract Cost [Line Items]
Current	7,835	8,266
Non-current	0	0
Total	$ 7,835	$ 8,266

SHAREHOLDERS' EQUITY - Narrative (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) vote $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	May 25, 2021 $ / shares shares	May 24, 2021 $ / shares	Jun. 30, 2020 shares
Class of Stock
Directors elected (as a percent)	25.00%
Stock authorized for repurchase (in shares)	3,700,000				8,000,000
Stock repurchased (shares)	3,200,000	1,100,000
Stock repurchased (USD per share) \| $ / shares	$ 51.00	$ 77.44
Value of stock repurchased \| $	$ 165.6	$ 85.3
Common Stock
Class of Stock
Number of votes \| vote	1
Common stock, par value (USD per share) \| $ / shares	$ 0.0001	$ 0.0001	$ 0.0001	$ 0.001
Common Stock \| Vimeo
Class of Stock
Number of shares issued upon Spin-off per preferred stock exchanged (in shares)			1.6235
Series 1 Mandatorily Exchangeable Preferred Stock
Class of Stock
Number of preferred stock issued upon reclassification of common stock (in shares)			0.01
Preferred stock, par value (USD per share) \| $ / shares			$ 0.01
Class B Common Stock
Class of Stock
Number of votes \| vote	10
Common stock, par value (USD per share) \| $ / shares	$ 0.0001	$ 0.0001	$ 0.0001	$ 0.001
Class B Common Stock \| Vimeo
Class of Stock
Number of shares issued upon Spin-off per preferred stock exchanged (in shares)			1.6235
Series 2 Mandatorily Exchangeable Preferred Stock
Class of Stock
Number of preferred stock issued upon reclassification of common stock (in shares)			0.01
Preferred stock, par value (USD per share) \| $ / shares			$ 0.01

STOCK-BASED COMPENSATION - Stock Options Outstanding and Exercisable (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Options Outstanding
Options outstanding (shares) \| shares	2,570
Weighted- Average Remaining Contractual Life in Years	1 year 10 months 24 days
Weighted-average exercise price (USD per share)	$ 14.23
Options Exercisable
Options exercisable (shares) \| shares	2,570
Weighted- Average Remaining Contractual Life in Years	1 year 10 months 24 days
Weighted-average exercise price (USD per share)	$ 14.23
Less than $10.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise price range, upper limit (USD per share)	$ 10.00
Options Outstanding
Options outstanding (shares) \| shares	426
Weighted- Average Remaining Contractual Life in Years	2 years 2 months 12 days
Weighted-average exercise price (USD per share)	$ 8.61
Options Exercisable
Options exercisable (shares) \| shares	426
Weighted- Average Remaining Contractual Life in Years	2 years 2 months 12 days
Weighted-average exercise price (USD per share)	$ 8.61
$10.01 to $15.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise price range, lower limit (USD per share)	10.01
Exercise price range, upper limit (USD per share)	$ 15.00
Options Outstanding
Options outstanding (shares) \| shares	666
Weighted- Average Remaining Contractual Life in Years	1 year 2 months 12 days
Weighted-average exercise price (USD per share)	$ 13.66
Options Exercisable
Options exercisable (shares) \| shares	666
Weighted- Average Remaining Contractual Life in Years	1 year 2 months 12 days
Weighted-average exercise price (USD per share)	$ 13.66
$15.01 to $20.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise price range, lower limit (USD per share)	15.01
Exercise price range, upper limit (USD per share)	$ 20.00
Options Outstanding
Options outstanding (shares) \| shares	1,474
Weighted- Average Remaining Contractual Life in Years	2 years
Weighted-average exercise price (USD per share)	$ 16.09
Options Exercisable
Options exercisable (shares) \| shares	1,474
Weighted- Average Remaining Contractual Life in Years	2 years
Weighted-average exercise price (USD per share)	$ 16.09
Greater than $20.01
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise price range, lower limit (USD per share)	$ 20.01
Options Outstanding
Options outstanding (shares) \| shares	4
Weighted- Average Remaining Contractual Life in Years	3 years 7 months 6 days
Weighted-average exercise price (USD per share)	$ 21.17
Options Exercisable
Options exercisable (shares) \| shares	4
Weighted- Average Remaining Contractual Life in Years	3 years 7 months 6 days
Weighted-average exercise price (USD per share)	$ 21.17

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Capitalized Software, Equipment, Buildings, Leasehold Improvements and Land (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Capitalized software, equipment, buildings, land and leasehold improvements, net	$ 455,281	$ 510,614
Capitalized software and computer equipment \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	2 years
Capitalized software and computer equipment \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	3 years
Furniture and other equipment \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	3 years
Furniture and other equipment \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	12 years
Buildings and leasehold improvements \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	3 years
Buildings and leasehold improvements \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	39 years
Software and software development costs
Property, Plant and Equipment [Line Items]
Capitalized software, equipment, buildings, land and leasehold improvements, net	$ 109,700	$ 155,700

SEGMENT INFORMATION - Revenue and Long-Lived Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue and Long-lived Assets by Geography
Revenue	$ 4,365,235	$ 5,235,280	$ 3,699,627
Long-lived assets (excluding goodwill and intangible assets)	754,878	938,774
United States
Revenue and Long-lived Assets by Geography
Revenue	3,798,229	4,720,504	3,184,653
Long-lived assets (excluding goodwill and intangible assets)	743,914	927,759
All other countries
Revenue and Long-lived Assets by Geography
Revenue	567,006	514,776	$ 514,974
Long-lived assets (excluding goodwill and intangible assets)	$ 10,964	$ 11,015

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

+ Details

BUSINESS COMBINATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Dec. 01, 2021	Dec. 31, 2021
Business Acquisition [Line Items]
Increase in amortization expense		$ 135.9
Reduction in transaction-related costs		$ 130.8
Meredith Corporation
Business Acquisition [Line Items]
Purchase price	$ 2,700.0
Business acquisition, purchase price (in dollars per share)	$ 42.18

RELATED PARTY TRANSACTIONS - Narrative (Details) $ in Thousands	3 Months Ended		7 Months Ended	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2023 USD ($) plane	Dec. 31, 2022 USD ($)	Dec. 31, 2021 shares
Related Party Transaction [Line Items]
Other current assets	$ 296,563	$ 296,563		$ 257,499	$ 296,563
Other non-current assets	625,774	625,774		473,267	625,774
CEO Compensation and Certain Expenses
Related Party Transaction [Line Items]
Related party transaction amount		2,100		$ 9,400
Angi, Inc. \| Common Stock \| Angi Inc. \| Employee Matters Agreement
Related Party Transaction [Line Items]
Stock received from related party (shares) \| shares						2,600,000
Angi, Inc. \| Class B Common Stock \| Angi Inc. \| Employee Matters Agreement
Related Party Transaction [Line Items]
Stock received from related party (shares) \| shares						200,000
Mr. Diller \| IAC and Vimeo
Related Party Transaction [Line Items]
Voting interests				0.10
Vimeo \| Separation Agreement
Related Party Transaction [Line Items]
Other current assets	800	800		$ 0	800
Accounts payable	0	0			0
Vimeo \| Lease Agreement
Related Party Transaction [Line Items]
Lease expense			$ 2,600	3,500	4,600
Other non-current assets	$ 0	$ 0		$ 300	$ 0
Expedia \| Corporate Aircraft Purchase Agreement
Related Party Transaction [Line Items]
Proportion of ownership interest held each by entity and by related party in aircraft employing flight crew (as a percent)				50.00%
Number of aircraft operated \| plane				2
Proportion of total sales price proceeds received in related party transaction (as a percent)	50.00%
Proportion of ownership interest held each by entity and by related party in another entity employing flight crew (as a percent)				50.00%
Percentage of ownership interest in aircraft by subsidiary			100.00%			100.00%
Expedia \| IAC and Expedia \| Corporate Aircraft Purchase Agreement
Related Party Transaction [Line Items]
Proceeds from transaction with related party	$ 19,000

DOTDASH MEREDITH RESTRUCTURING CHARGES, TRANSACTION-RELATED EXPENSES AND CHANGE-IN-CONTROL PAYMENTS - Restructuring Accrual and Related Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Restructuring Reserve [Roll Forward]
Charges Incurred	$ 3,674	$ 80,238
Payments	(24,979)	(31,110)
Non-cash		(21,734)
Total	1,890	27,394
Impairment charges		21,300
Inventory write-off	400
Digital
Restructuring Reserve [Roll Forward]
Charges Incurred	1,371	39,225
Payments	(10,021)	(6,966)
Non-cash		(21,309)
Total	473	10,950
Print
Restructuring Reserve [Roll Forward]
Charges Incurred	1,625	33,432
Payments	(10,916)	(20,952)
Non-cash		(425)
Total	1,119	12,055
Other
Restructuring Reserve [Roll Forward]
Charges Incurred	678	7,581
Payments	(4,042)	(3,192)
Non-cash		0
Total	$ 298	$ 4,389

FINANCIAL STATEMENT DETAILS - Changes in the Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at January 1	$ 50,971	$ 36,637
Current period provision for credit losses	87,729	116,553
Write-offs charged against the allowance	(104,764)	(107,188)
Recoveries collected	5,227	5,367
Sale of a business	(6,958)	0
Other	174	(398)
Balance at December 31	$ 32,379	$ 50,971

SEGMENT INFORMATION - Capital Expenditures by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Capital expenditures	$ 141,364	$ 139,753	$ 90,210
Operating Segments \| Dotdash Meredith
Segment Reporting Information [Line Items]
Capital expenditures	10,370	12,885	4,823
Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Capital expenditures	47,780	115,479	69,909
Operating Segments \| Search
Segment Reporting Information [Line Items]
Capital expenditures	0	17	178
Operating Segments \| Emerging & Other
Segment Reporting Information [Line Items]
Capital expenditures	2,046	10,982	1,200
Corporate
Segment Reporting Information [Line Items]
Capital expenditures	$ 81,168	$ 390	$ 14,100

GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill and Intangible Assets, Net

Goodwill and intangible assets, net are as follows:


	December 31,
	2023		2022
	(In thousands)
Goodwill	$	3,024,266	$	3,030,168
Intangible assets with indefinite lives	544,228		631,097
Intangible assets with definite lives, net of accumulated amortization	330,477		538,944
Total goodwill and intangible assets, net	$	3,898,971	$	4,200,209

Schedule of Goodwill by Reporting Unit


	Balance at December 31, 2022		Impairment		Foreign Exchange Translation		Balance at December 31, 2023		Accumulated Impairment Losses at December 31, 2023
	(In thousands)
Dotdash Meredith
Digital	$	1,497,642	$	—	$	—	$	1,497,642	$	(198,329)
Total Dotdash Meredith	1,497,642		—		—		1,497,642		(198,329)

Angi Inc.
Ads and Leads	761,571		—		—		761,571		—
Services	51,095		—		—		51,095		—
International	70,619		—		3,098		73,717		—
Total Angi Inc.	883,285		—		3,098		886,383		—

Emerging & Other	649,241		(9,000)		—		640,241		(95,748)
Search	—		—		—		—		(981,308)
Total	$	3,030,168	$	(9,000)	$	3,098	$	3,024,266	$	(1,275,385)


	Balance at December 31, 2021		Deductions		Reporting Unit Allocation Adjustment		Impairment		Foreign Exchange Translation		Balance at December 31, 2022		Accumulated Impairment Losses at December 31, 2022
	(In thousands)
Dotdash Meredith
Digital	$	1,567,843	$	(70,201)	$	—	$	—	$	—	$	1,497,642	$	(198,329)
Total Dotdash Meredith	1,567,843		(70,201)		—		—		—		1,497,642		(198,329)

Angi Inc.
Angi Inc.	916,375		(816)		(903,469)		—		(12,090)		—		—
Ads and Leads	—		—		761,571		—		—		761,571		—
Services	—		—		51,095		—		—		51,095		—
International	—		—		64,798		—		5,821		70,619		—
Total Angi Inc.	916,375		(816)		(26,005)		—		(6,269)		883,285		—

Emerging & Other	742,392		(6,403)		26,005		(112,753)		—		649,241		(112,753)
Search	—		—		—		—		—		—		(981,308)
Total	$	3,226,610	$	(77,420)	$	—	$	(112,753)	$	(6,269)	$	3,030,168	$	(1,292,390)

Schedule of Intangible Assets with Definite Lives

At December 31, 2023 and 2022, intangible assets with definite lives are as follows:


	December 31, 2023
	Gross Carrying Amount		Accumulated Amortization		Net		Weighted-Average Useful Life
	(In thousands)						(Years)
Advertiser relationships	$	297,000	$	(154,819)	$	142,181	5.0
Technology	198,344		(196,816)		1,528		3.5
Licensee relationships	171,000		(85,496)		85,504		4.9
Trade names	120,759		(55,541)		65,218		9.2
Content	104,939		(88,845)		16,094		2.9
Customer lists and user base	68,661		(48,721)		19,940		6.4
Service professional relationships	6,419		(6,407)		12		2.7

Total	$	967,122	$	(636,645)	$	330,477	5.1


	December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Net		Weighted-Average Useful Life
	(In thousands)						(Years)
Advertiser relationships	$	297,000	$	(87,199)	$	209,801	5.0
Technology	198,224		(171,660)		26,564		3.5
Licensee relationships	171,000		(45,152)		125,848		4.9
Trade names	120,711		(37,677)		83,034		9.2
Content	106,639		(61,407)		45,232		2.9
Customer lists and user base	68,575		(41,868)		26,707		6.4
Service professional relationships	97,658		(97,537)		121		3.0
Subscriber relationships	61,200		(39,563)		21,637		1.9
Total	$	1,121,007	$	(582,063)	$	538,944	4.7

Schedule of Expected Amortization of Intangible Assets

At December 31, 2023, amortization of intangible assets with definite lives for each of the next five years and thereafter is estimated to be as follows:


Years Ending December 31,	(In thousands)
2024	$	133,662
2025	84,475
2026	69,057
2027	15,142
2028	5,519
Thereafter	22,622
Total	$	330,477

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
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-Name Accounting Standards Codification
-Section 55
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-2

+ Details

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Redeemable Noncontrolling Interests (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) arrangement
Noncontrolling Interest [Line Items]
Put and call arrangements exercised \| arrangement			2
Redeemable Noncontrolling Interest
Noncontrolling Interest [Line Items]
Purchase of noncontrolling interests	$ 7.6	$ 24.2	$ 777.7
Redeemable Noncontrolling Interest \| Vimeo
Noncontrolling Interest [Line Items]
Purchase of noncontrolling interests			$ 777.3

EARNINGS (LOSS) PER SHARE - Summary (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Nov. 05, 2020	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator: Basic
Net earnings (loss) from continuing operations		$ 258,317	$ (1,195,149)	$ 590,816
Net loss attributable to noncontrolling interests of continuing operations		7,625	22,285	8,748
Net earnings attributed to unvested participating security		(9,216)	0	(20,160)
Net earnings (loss) from continuing operations attributable to IAC common stock and Class B common stock shareholders		256,726	(1,172,864)	579,404
Earnings (loss) from discontinued operations, net of taxes		0	2,694	(1,831)
Net earnings attributable to noncontrolling interests of discontinued operations		0	0	(186)
Net loss attributed to unvested participating security		0	0	68
Net earnings (loss) from discontinued operations attributable to IAC common stock and Class B common stock shareholders		0	2,694	(1,949)
Net earnings (loss) attributable to IAC common stock and Class B common stock shareholders		$ 256,726	$ (1,170,170)	$ 577,455
Denominator: Basic
Weighted average basic IAC Common Stock and Class B common stock shares outstanding (in shares)		83,569,000	86,350,000	86,222,000
(Loss) earnings per share: Basic
Earnings (loss) per share from continuing operations attributable to IAC Common Stock and Class B common stock shareholders (USD per share)		$ 3.07	$ (13.58)	$ 6.72
Earnings (loss) per share from discontinued operations, net of tax, attributable to IAC Common Stock and Class B common stock shareholders (USD per share)		0	0.03	(0.02)
Earnings (loss) per share attributable to IAC Common Stock and Class B common stock shareholders (USD per share)		$ 3.07	$ (13.55)	$ 6.70
Numerator: Diluted
Net earnings (loss) from continuing operations		$ 258,317	$ (1,195,149)	$ 590,816
Net loss attributable to noncontrolling interests of continuing operations		7,625	22,285	8,748
Net earnings attributed to unvested participating security		(8,918)	0	(18,981)
Impact from public subsidiaries' dilutive securities		0	0	406
Net earnings (loss) from continuing operations attributable to IAC common stock and Class B common stock shareholders		257,024	(1,172,864)	580,989
Earnings (loss) from discontinued operations, net of taxes		0	2,694	(1,831)
Net earnings attributable to noncontrolling interests of discontinued operations		0	0	(186)
Net loss attributed to unvested participating security		0	0	64
Net earnings (loss) from discontinued operations attributable to IAC common stock and Class B common stock shareholders		0	2,694	(1,953)
Net earnings (loss) attributable to IAC common stock and Class B common stock shareholders		$ 257,024	$ (1,170,170)	$ 579,036
Denominator: Diluted
Weighted average basic IAC Common Stock and Class B common stock shares outstanding (in shares)		83,569,000	86,350,000	86,222,000
Dilutive securities (in shares)		2,895,000	0	5,606,000
Denominator for earnings per share - weighted average shares (in shares)		86,464,000	86,350,000	91,828,000
(Loss) earnings per share: Diluted
Earnings (loss) per share from continuing operations attributable to IAC Common Stock and Class B common stock shareholders (USD per share)		$ 2.97	$ (13.58)	$ 6.33
Earnings (loss) per share from discontinued operations, net of tax, attributable to IAC Common Stock and Class B common stock shareholders (USD per share)		0	0.03	(0.02)
Earnings (loss) per share attributable to IAC Common Stock and Class B common stock shareholders (USD per share)		$ 2.97	$ (13.55)	$ 6.31
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities excluded from calculation of diluted earnings per share (less than or equal to) (shares)		3,600,000	7,900,000	3,000,000
Chief Executive Officer \| Restricted Stock Awards \| RSA Agreement
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares authorized for issuance (in shares)	3,000,000
Term of employment agreement and restricted stock agreement (in years)	10 years

FINANCIAL STATEMENT DETAILS - Other (Expense) Income, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Interest income	$ 71,114	$ 24,916	$ 1,351
Unrealized increase (decrease) in the estimated fair value of a warrant	2,832	(62,495)	104,018
Foreign exchange gains (losses), net	1,528	(8,503)	(13,636)
Net periodic pension benefit credit (cost), other than the service cost component	139	(206,422)	(17,858)
Net (downward) upward adjustments to the carrying value of equity securities without readily determinable fair values and realized gains on sales of businesses and investments	(19,201)	59,299	18,874
Unrealized (loss) gain related to marketable equity securities	(145)	(20,342)	18,788
Realized gain on the sale of a marketable equity security	0	0	7,174
Loss on the extinguishment of debt	0	0	(1,110)
Other	7,595	(4,238)	(5,747)
Other income (expense), net	63,862	(217,785)	111,854
Actuarial gain (loss) recognition	1,700	(213,400)	(7,100)
Foreign exchange losses due to substantial liquidation of certain foreign subsidiaries			10,000
Upward (downward) adjustments to the carrying value of equity securities without readily determinable fair values	$ (20,200)	(89,100)	$ 8,900
BlueCrew
Defined Benefit Plan Disclosure [Line Items]
Gain on sale of business		$ 132,200

INCOME TAXES - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income tax provision (benefit) at the federal statutory rate of 21%	$ 77,098	$ (320,510)	$ 153,259
State income taxes, net of effect of federal tax benefit	12,542	(26,708)	24,289
Research credit	(11,973)	(19,041)	(5,094)
Non-deductible executive compensation	10,383	12,359	22,358
Stock-based compensation	2,357	(2,155)	(91,729)
Non-deductible goodwill impairment	1,659	15,764	0
Deferred tax adjustment for enacted changes in tax laws and rates	407	(7,152)	4,049
Change in judgement on beginning of the year valuation allowance	(240)	3,523	20,248
Other, net	16,585	12,833	11,610
Income tax provision (benefit)	$ 108,818	$ (331,087)	$ 138,990

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Long-Lived Assets and Intangible Assets with Definite Lives (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Sep. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Intangible assets with definite lives
Impairment charges				$ 21.3
Non-cash lease expense (including right-of-use asset impairments)			$ 48.9	2.3	$ 10.5
Impairment of leasehold improvements				7.0
Meredith Corporation
Intangible assets with definite lives
Impairment charges	$ 70.0	$ 21.3
Non-cash lease expense (including right-of-use asset impairments)	44.7	14.3	$ 44.7	$ 14.3
Impairment of leasehold improvements	$ 25.3	$ 7.0

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Certain Risks and Concentrations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Concentration Risk [Line Items]
Revenue	$ 4,365,235	$ 5,235,280	$ 3,699,627
Dotdash Meredith Term Loan B Facility \| Term Loan
Concentration Risk [Line Items]
Long-term debt, gross	$ 1,200,000
Stated interest rate (as a percent)	9.44%	8.22%
Dotdash Meredith Term Loan A Facility \| Term Loan
Concentration Risk [Line Items]
Long-term debt, gross	$ 315,000
Stated interest rate (as a percent)	7.69%	5.91%
Dotdash Meredith
Concentration Risk [Line Items]
Long-term debt, gross	$ 1,540,000	$ 1,570,000
Dotdash Meredith \| Dotdash Meredith Term Loan B Facility \| Term Loan
Concentration Risk [Line Items]
Long-term debt, gross	1,225,000	1,237,500
Dotdash Meredith \| Dotdash Meredith Term Loan B Facility \| Interest rate swaps
Concentration Risk [Line Items]
Notional amount	$ 350,000
Stated interest rate (as a percent)	7.92%
Dotdash Meredith \| Dotdash Meredith Term Loan A Facility \| Term Loan
Concentration Risk [Line Items]
Long-term debt, gross	$ 315,000	332,500
Revenue \| Customer Concentration Risk
Concentration Risk [Line Items]
Revenue	574,300	514,800	661,300
Revenue \| Customer Concentration Risk \| Search \| Ask Media Group
Concentration Risk [Line Items]
Revenue	501,500	424,300	542,100
Revenue \| Customer Concentration Risk \| Search \| Desktop
Concentration Risk [Line Items]
Revenue	72,800	90,500	119,100
Google Inc. \| Revenue \| Customer Concentration Risk
Concentration Risk [Line Items]
Revenue	$ 715,000	$ 701,500	$ 755,100
Concentration risk (as a percent)	16.00%	13.00%	20.00%
Google Inc. \| Accounts Receivable \| Customer Concentration Risk
Concentration Risk [Line Items]
Accounts receivable	$ 52,200	$ 74,100
Services Agreement \| Revenue \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as a percent)	13.00%	10.00%	18.00%

INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Income tax benefit related to net operating loss carryforwards	$ 1,500
Tax credit carryforwards	91,900
Tax credit carryforwards that can be carried forward indefinitely	14,000
Tax credit carryforwards expiring primarily between 2023 and 2042	77,900
Increase in valuation allowance	8,000
Valuation allowance at end of period	132,100
Income tax examination, liability	2,500
Unrecognized tax benefits, income tax penalties and interest accrued	19,600	$ 16,600
Unrecognized tax benefits, decrease primarily due to research credits	3,000
Tax positions for which the ultimate deductibility is highly certain but timing is uncertain	18,600	15,400
Decrease in unrecognized tax benefits is reasonably possible	400
Earnings (loss) from discontinued operations, net of taxes	0	$ 2,694	$ (1,831)
Federal Tax Authority
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Net operating loss carryforwards	1,400,000
Net operating loss carryforwards not subject to expiration	1,300,000
Net operating loss carryforwards subject to expiration within 20 years	100,000
Net operating loss carryforwards without restrictions	1,200,000
State Tax Authority
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Net operating loss carryforwards	1,100,000
Net operating loss carryforwards not subject to expiration	100,000
Net operating loss carryforwards subject to expiration within 20 years	1,000,000
Net operating loss carryforwards without restrictions	800,000
Tax credit carryforwards	1,900
Foreign Tax Authority
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Net operating loss carryforwards	439,000
Net operating loss carryforwards not subject to expiration	425,700
Net operating loss carryforwards subject to expiration within 20 years	13,300
Tax credit carryforwards	9,200
Tax credit carryforwards related to research and development	$ 80,800

LEASES

12 Months Ended

Dec. 31, 2023

Leases [Abstract]

LEASES

The Company primarily leases office space used in connection with its operations under various operating leases, the majority of which contain escalation clauses.

ROU assets represent the Company’s right to use the underlying assets for the lease term and lease liabilities represent the present value of the Company’s obligation to make payments arising from these leases. ROU assets and related lease liabilities are based on the present value of fixed lease payments over the lease term using the Company's and certain of its subsidiaries' respective incremental borrowing rates on the lease commencement date, the date of acquisition for any leases acquired in connection with a business combination or January 1, 2019, the date ASC Topic 842, Leases ("ASC 842") was adopted, for leases that commenced prior to that date. The Company combines the lease and non-lease components of lease payments in determining ROU assets and related lease liabilities. If the lease includes one or more options to extend the term of the lease, the renewal option is considered in the lease term if it is reasonably certain the Company will exercise the option(s). Lease expense is recognized on a straight-line basis over the term of the lease. As permitted by ASC 842, leases with an initial term of twelve months or less ("short-term leases") are not recorded on the balance sheet.

Variable lease payments consist primarily of common area maintenance, utilities and taxes, which are not included in the recognition of ROU assets and related lease liabilities. The Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants.

The following table presents the balances of ROU assets and lease liabilities within the balance sheet:


		December 31,
Leases	Balance Sheet Classification	2023		2022
		(In thousands)
Assets:
ROU assets	Other non-current assets	$	299,597	$	428,160

Liabilities:
Current lease liabilities	Accrued expenses and other current liabilities	$	68,126	$	67,192
Long-term lease liabilities	Other long-term liabilities	401,118		518,851
Total lease liabilities		$	469,244	$	586,043

The following table presents the net lease expense within the statement of operations:


		Years Ended December 31,
Lease Expense	Statement of Operations Classification	2023		2022		2021
		(In thousands)
Fixed lease expense	Cost of revenue	$	708	$	1,283	$	1,707
Fixed lease expense	Selling and marketing expense	2,362		6,229		9,443
Fixed lease expense	General and administrative expense	110,177		61,886		31,165
Fixed lease expense	Product development expense	658		999		1,756
Total fixed lease expense(a)		113,905		70,397		44,071

Variable lease expense	Selling and marketing expense	79		199		1,087
Variable lease expense	General and administrative expense	19,610		16,406		8,176
Variable lease expense	Product development expense	157		89		639
Total variable lease expense		19,846		16,694		9,902
Net lease expense		$	133,751	$	87,091	$	53,973

_____________________

(a) Includes (i) lease impairment charges of $48.9 million, $2.3 million and $10.5 million, (ii) short-term lease expense of $1.6 million, $4.0 million and $1.4 million, (iii) sublease income of $15.2 million, $17.1 million and $6.7 million and (iv) (losses) gains on termination of leases of $(0.2) million, $3.3 million and $(0.1) million for the years ended December 31, 2023, 2022 and 2021, respectively. Impairment charges related to ROU assets are included in "General and administrative expense" in the statement of operations. Impairment charges during the year ended December 31, 2023 include $44.7 million related to certain unoccupied leased office space at Dotdash Meredith due to the continued decline in the commercial real estate market. During the year ended December 31, 2022, the Company also recorded $14.3 million of impairment charges related to the consolidation of certain leased spaces following the Meredith acquisition, which is included in "General and administration expense" in the statement of operations as a restructuring charge. See "Note 2—Summary of Significant Accounting Policies" and "Note 11—Dotdash Meredith Restructuring Charges, Transaction-Related Expenses and Change-in-Control Payments" for additional information on impairment and restructuring charges, respectively.

Maturities of lease liabilities at December 31, 2023(b) are summarized below:


Years Ending December 31,	(In thousands)
2024	$	89,626
2025	81,500
2026	76,461
2027	63,097
2028	59,013
Thereafter	194,120
Total	563,817
Less: Interest	94,573
Present value of lease liabilities	$	469,244

_____________________

(b) At December 31, 2023 there were no legally binding minimum lease payments for leases signed but not yet commenced.

The following are the weighted average assumptions used for lease term and discount rate:


	December 31,
	2023		2022
Remaining lease term	7.5 years		11.4 years
Discount rate	5.07	%	5.22	%

The following is the supplemental cash flow information:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
ROU assets obtained in exchange for lease liabilities (c)	$	7,545	$	9,608	$	421,153
Derecognition of ROU assets due to termination or modification	$	(34,809)	$	(4,612)	$	(1,854)
Cash paid for amounts included in the measurement of lease liabilities	$	100,328	$	93,864	$	44,659

_____________________

(c) December 31, 2021 includes $416.6 million of ROU assets acquired related to Meredith as of the date of acquisition. The related lease liabilities acquired were $437.7 million.

In addition, purchase accounting adjustments related to the acquisition of Meredith were completed during the year ended December 31, 2022 and ROU assets were adjusted downward by $4.3 million and lease liabilities were adjusted upward by $7.1 million.

PENSION AND POSTRETIREMENT BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2023

Retirement Benefits [Abstract]

Schedule of Changes in Projected Benefit Obligations and Change in Plan Assets

The following tables present changes in, and components of, the Company's net assets/liabilities for pension and other postretirement benefits:


	Year Ended December 31, 2023						Year Ended December 31, 2022
	Pension				Post-Retirement		Pension				Post-Retirement
	Domestic		International		Domestic		Domestic		International		Domestic
	(In thousands)
Change in benefit obligation
Benefit obligation, beginning of year	$	72,988	$	467,829	$	4,473	$	166,800	$	790,663	$	10,808

Acquisition and related fair value adjustments(a)	—		—		—		23,345		—		—
Service cost	211		—		4		3,562		—		7
Interest cost	3,140		19,610		231		4,372		15,014		262


Net actuarial gain	(49)		(6,420)		(496)		(7,262)		(210,284)		(3,717)
Benefits paid (including lump sums)	(19,568)		(17,796)		36		(9,105)		(15,521)		150
Settlements	—		—		—		(96,100)		(34,374)		(3,037)
Curtailment gain	—		—		—		(3,060)		—		—

Plan transfer(b)	—		—		—		(9,564)		—		—
Foreign currency exchange rate impact	—		25,046		—		—		(77,669)		—
Benefit obligation, end of year	$	56,722	$	488,269	$	4,248	$	72,988	$	467,829	$	4,473
Change in plan assets
Fair value of plan assets, beginning of year	$	78,199	$	467,891	$	—	$	132,326	$	1,015,274	$	—

Acquisition and related fair value adjustments(a)	—		—		—		18,596		—		—
Actual return on plan assets	2,765		13,728		—		(12,657)		(397,417)		—
Employer contributions	612		163		—		44,221		122		—

Benefits paid (including lump sums)	(19,568)		(17,796)		—		(9,105)		(15,521)		—
Settlements	—		—		—		(95,182)		(34,374)		—

Foreign currency exchange rate impact	—		24,715		—		—		(100,193)		—
Fair value of plan assets, end of year	$	62,008	$	488,701	$	—	$	78,199	$	467,891	$	—
Over (under) funded status, end of year	$	5,286	$	432	$	(4,248)	$	5,211	$	62	$	(4,473)

_____________________

(a) All pension and postretirement plans were acquired with the acquisition of Meredith on December 1, 2021. The purchase accounting for the acquisition of Meredith was completed in the fourth quarter of 2022.

(b) Obligations associated with certain former Meredith Corporation employees were transferred during 2022 to the third-party that purchased the entity on December 1, 2021.

Schedule of Amounts Recognized in Balance Sheet

The following amounts are recognized in the December 31, 2023 and 2022 balance sheet, respectively:


	Year Ended December 31, 2023						Year Ended December 31, 2022
	Pension				Postretirement		Pension				Postretirement
	Domestic		International		Domestic		Domestic		International		Domestic
	(In thousands)
Other current assets
Prepaid benefit cost	$	—	$	4,850	$	—	$	—	$	—	$	—
Other non-current assets
Prepaid benefit cost	10,225		—		—		9,561		4,358		—
Accrued expenses and other current liabilities
Accrued benefit liability	(1,430)		(4,418)		(433)		(698)		(127)		(475)
Other long-term liabilities
Accrued benefit liability	(3,509)		—		(3,815)		(3,652)		(4,169)		(3,998)
Net amount recognized	$	5,286	$	432	$	(4,248)	$	5,211	$	62	$	(4,473)

Schedule of Plan with Projected Benefit Obligation and Accumulated Benefit Obligations in Excess of Plan Assets

The following table provides information about pension plans with projected benefit obligations and accumulated benefit obligations in excess of plan assets:


	Year Ended December 31, 2023				Year Ended December 31, 2022
	Domestic		International		Domestic		International
	(In thousands)
Projected benefit obligation	$	4,939	$	4,419	$	4,350	$	4,296
Accumulated benefit obligation	$	4,290	$	4,419	$	3,831	$	4,296
Fair value of plan assets	$	—	$	—	$	—	$	—

Schedule of Net Benefit Costs

The components of net periodic benefit cost (credit) recognized in the statement of operations were as follows:


	Year Ended December 31, 2023						Year Ended December 31, 2022						Year Ended December 31, 2021
	Pension				Post-Retirement		Pension				Post-Retirement		Pension				Post-Retirement
	Domestic		International		Domestic		Domestic		International		Domestic		Domestic		International		Domestic
	(In thousands)
Service cost	$	211	$	—	$	4	$	3,562	$	—	$	7	$	368	$	—	$	1
Interest cost	3,140		19,610		231		4,372		15,014		262		224		981		22
Expected return on plan assets	(1,881)		(19,586)		—		(2,748)		(16,857)		—		(564)		(1,640)		—

Actuarial (gain) loss recognition	(932)		(225)		(496)		8,154		208,957		(3,717)		(2,480)		9,724		(132)
Settlement	—		—		—		(918)		—		(3,037)		—		—		—
Contractual termination benefits	—		—		—		—		—		—		11,785		—		—
Curtailment gain	—		—		—		(3,060)		—		—		—		—		—
Net periodic benefit cost (credit)	$	538	$	(201)	$	(261)	$	9,362	$	207,114	$	(6,485)	$	9,333	$	9,065	$	(109)

Schedule of Assumptions

Benefit obligations were determined using the following weighted average assumptions:


	Year Ended December 31, 2023						Year Ended December 31, 2022
	Pension				Postretirement		Pension				Postretirement
	Domestic		International		Domestic		Domestic		International		Domestic

Discount rate	5.19	%	4.06	%	5.11	%	5.41	%	4.13	%	5.46	%
Rate of compensation increase	2.90	%	N/A		3.50	%	2.99	%	N/A		3.50	%
Cash balance interest credit rate	2.39	%	N/A		N/A		2.39	%	N/A		N/A

Net periodic benefit cost (credit) were determined using the following weighted average assumptions:


	Year Ended December 31, 2023						Year Ended December 31, 2022						Year Ended December 31, 2021
	Pension				Post-Retirement		Pension				Post-Retirement		Pension				Post-Retirement
	Domestic		International		Domestic		Domestic		International		Domestic		Domestic		International		Domestic

Discount rate	5.48	%	4.13	%	5.46	%	3.28	%	1.67	%	2.61	%	2.02	%	1.40	%	2.52	%
Expected return on plan assets	4.48	%	4.12	%	N/A		2.80	%	1.90	%	N/A		6.00	%	1.90	%	N/A
Rate of compensation increase	2.99	%	N/A		3.50	%	2.95	%	N/A		3.50	%	2.90	%	N/A		3.50	%
Cash balance interest credit rate	2.39	%	N/A		N/A		3.65	%	N/A		N/A		2.04	%	N/A		N/A

The assumed healthcare trend rates used to measure the expected cost of benefits were as follows:


	Postretirement
	2023		2022		2021

Initial level	6.00	%	6.25	%	6.50	%
Ultimate level	5.00	%	5.00	%	5.00	%
Years to ultimate level	4		5		6

Schedule of Fair Value Measurements

Fair value measurements for the international pension plan assets were as follows:


	December 31, 2023
	Quoted Market Prices for Identical Assets in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
	(In thousands)
Cash and cash equivalents	$	8,199	$	—	$	—	$	8,199



Fixed income	—		—		399		399

Insurance annuity contracts	—		—		480,103		480,103
Total assets at fair value	$	8,199	$	—	$	480,502	$	488,701


	December 31, 2022
	Quoted Market Prices for Identical Assets in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
	(In thousands)
Cash and cash equivalents	$	7,613	$	—	$	—	$	7,613




Insurance annuity contracts	—		—		460,278		460,278
Total assets at fair value	$	7,613	$	—	$	460,278	$	467,891

Schedule of Changes in Fair Value of Plan Assets

The following table provides a reconciliation of the beginning and ending balances of assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3):


	December 31,
	2023		2022
	(In thousands)
Balance at beginning of year	$	460,278	$	313,095

Purchases	—		440,606
Settlements	(17,378)		(13,206)
Change in fair value	12,915		(237,248)
Foreign currency translation	24,253		(42,969)
Other	434		—
Balance at end of year	$	480,502	$	460,278

Schedule of Expected Benefit Payments

The following benefit payments, which will primarily be made from the funded plans, are expected to be paid:


	Pension Benefits				Postretirement Benefits
	Domestic		International		Domestic
Years Ending December 31,	(In thousands)
2024	$	54,578	$	15,981	$	444
2025	688		16,785		415
2026	386		17,619		389
2027	401		18,548		372
2028	619		19,429		360
Thereafter	2,314		111,180		1,575
Net amount recognized, end of year	$	58,986	$	199,542	$	3,555

PENSION AND POSTRETIREMENT BENEFIT PLANS

12 Months Ended

Dec. 31, 2023

Retirement Benefits [Abstract]

PENSION AND POSTRETIREMENT BENEFIT PLANS

Pension and Postretirement Plans

In connection with the acquisition of Meredith, the Company assumed the obligations under Meredith’s various pension plans. The plans include U.S. noncontributory pension plans that cover substantially all employees who were employed by Meredith prior to January 1, 2018. There are two international pension plans in the U.K., including the IPC Plan. The international plans have no active participants. The two U.S. and two U.K. plans consist of a qualified (funded) plan and a nonqualified (unfunded) plan in each country. These plans provide participants with retirement benefits in accordance with benefit provision formulas. The nonqualified pension plans provide retirement benefits to certain highly compensated employees. The Company also assumed Meredith's defined healthcare and life insurance plans that provide benefits to eligible employees upon their retirement.

On July 28, 2022, following approval by the trustees of the IPC Plan, the IPC Plan entered into an annuity contract with a private limited life insurance company covering all IPC Plan participants who were not covered by an annuity contract entered into in May 2020. The annuity contracts are designed to provide payments equal to all future designated contractual benefit payments to covered participants until the annuity contracts are settled. The value of the annuity contracts and the liabilities with respect to participants are expected to match (i.e., the full benefits have been annuitized). The Company remains responsible for paying pension benefits to the IPC Plan participants. While the Company currently does not expect to be required to make additional contributions to the IPC Plan, this may change based upon future events or as additional information becomes available.

On September 13, 2022, the board of directors of Meredith voted unanimously to freeze and terminate the U.S. funded pension plan effective December 31, 2022. All participants in this plan on the termination date continue as participants in the plan with respect to their accrued benefits until their accrued benefits are distributed to them or their beneficiaries. In addition, the participant's covered compensation was frozen effective December 31, 2022. Participants no longer receive a benefit credit under the plan, but participants continue to receive interest credits pursuant to the terms of the plan. The Company does not expect to have to make any contributions to the plan in the future due to its termination and over funded status.

Obligations and Funded Status

Change in Net Assets/Liabilities

The following tables present changes in, and components of, the Company's net assets/liabilities for pension and other postretirement benefits:


	Year Ended December 31, 2023						Year Ended December 31, 2022
	Pension				Post-Retirement		Pension				Post-Retirement
	Domestic		International		Domestic		Domestic		International		Domestic
	(In thousands)
Change in benefit obligation
Benefit obligation, beginning of year	$	72,988	$	467,829	$	4,473	$	166,800	$	790,663	$	10,808

Acquisition and related fair value adjustments(a)	—		—		—		23,345		—		—
Service cost	211		—		4		3,562		—		7
Interest cost	3,140		19,610		231		4,372		15,014		262


Net actuarial gain	(49)		(6,420)		(496)		(7,262)		(210,284)		(3,717)
Benefits paid (including lump sums)	(19,568)		(17,796)		36		(9,105)		(15,521)		150
Settlements	—		—		—		(96,100)		(34,374)		(3,037)
Curtailment gain	—		—		—		(3,060)		—		—

Plan transfer(b)	—		—		—		(9,564)		—		—
Foreign currency exchange rate impact	—		25,046		—		—		(77,669)		—
Benefit obligation, end of year	$	56,722	$	488,269	$	4,248	$	72,988	$	467,829	$	4,473
Change in plan assets
Fair value of plan assets, beginning of year	$	78,199	$	467,891	$	—	$	132,326	$	1,015,274	$	—

Acquisition and related fair value adjustments(a)	—		—		—		18,596		—		—
Actual return on plan assets	2,765		13,728		—		(12,657)		(397,417)		—
Employer contributions	612		163		—		44,221		122		—

Benefits paid (including lump sums)	(19,568)		(17,796)		—		(9,105)		(15,521)		—
Settlements	—		—		—		(95,182)		(34,374)		—

Foreign currency exchange rate impact	—		24,715		—		—		(100,193)		—
Fair value of plan assets, end of year	$	62,008	$	488,701	$	—	$	78,199	$	467,891	$	—
Over (under) funded status, end of year	$	5,286	$	432	$	(4,248)	$	5,211	$	62	$	(4,473)

_____________________

(b) Obligations associated with certain former Meredith Corporation employees were transferred during 2022 to the third-party that purchased the entity on December 1, 2021.

Benefits paid directly from Dotdash Meredith assets are included both in employer contributions and benefits paid.

Domestic Plans

The Company froze and terminated the domestic funded plan as of December 31, 2022. The termination process requires certain customary regulatory approvals, which are forthcoming. The decision to freeze and terminate the plan shifted the investment strategy to preserve the over funded status of the plan until the eventual distribution to the plan participants. This strategy preserved the net over funded status of the domestic plans as of December 31, 2023.

The over funded status as of December 31, 2022 was the result of a series of changes to the domestic plans during 2022. The acquisition of Meredith in 2021 triggered settlement of the entire benefit obligation of one of the two unfunded plans during 2022. This plan was paid out in its entirety as was a substantial portion of the benefit obligations of the other unfunded plan. These payments are included in the $96.1 million of settlements in the table above. See "Note 11 —Dotdash Meredith Restructuring Charges, Transaction-Related Expenses and Change-in-Control Payments" for additional information on the change-in-control payments. For the funded plan, higher interest rates and losses on equity securities led to a decrease in plan assets; and the higher interest rates reduced plan obligations. The gains realized on the plan's obligation did not offset the loss on assets, resulting in an overall loss for the year ended December 31, 2022. Additionally, during 2022, the funded plan realized a curtailment gain as a result of the benefit freeze of the plan discussed above, but this gain was nearly offset by a loss realized for the measurement of the plan on a termination basis. The net actuarial gain included in the change in benefit obligation for the domestic postretirement plans for the year ended December 31, 2022 is the result of demographic shifts in the covered participants.

International Plans

The international pension plans primarily consist of the IPC Plan. All IPC Plan participants are covered by the annuity contracts referenced above, which are held with a private limited life insurance company. As described above, the full benefits under the plan have been annuitized, which resulted in the limited change in the funded status of the international plans during the year ended December 31, 2023. The overall loss for the year ended December 31, 2022 was due to the impact of higher interest rates with the decline in the value of assets exceeding the benefit of the reduction in the plan obligation.

Balance Sheet Classification

The following amounts are recognized in the December 31, 2023 and 2022 balance sheet, respectively:


	Year Ended December 31, 2023						Year Ended December 31, 2022
	Pension				Postretirement		Pension				Postretirement
	Domestic		International		Domestic		Domestic		International		Domestic
	(In thousands)
Other current assets
Prepaid benefit cost	$	—	$	4,850	$	—	$	—	$	—	$	—
Other non-current assets
Prepaid benefit cost	10,225		—		—		9,561		4,358		—
Accrued expenses and other current liabilities
Accrued benefit liability	(1,430)		(4,418)		(433)		(698)		(127)		(475)
Other long-term liabilities
Accrued benefit liability	(3,509)		—		(3,815)		(3,652)		(4,169)		(3,998)
Net amount recognized	$	5,286	$	432	$	(4,248)	$	5,211	$	62	$	(4,473)

The accumulated benefit obligation for the domestic defined benefit pension plans was $56.1 million and $72.5 million at December 31, 2023 and 2022, respectively. The accumulated benefit obligation for the international defined benefit pension plans was $488.3 million and $467.8 million at December 31, 2023 and 2022, respectively.

Accumulated and Projected Benefit Obligations

The following table provides information about pension plans with projected benefit obligations and accumulated benefit obligations in excess of plan assets:


	Year Ended December 31, 2023				Year Ended December 31, 2022
	Domestic		International		Domestic		International
	(In thousands)
Projected benefit obligation	$	4,939	$	4,419	$	4,350	$	4,296
Accumulated benefit obligation	$	4,290	$	4,419	$	3,831	$	4,296
Fair value of plan assets	$	—	$	—	$	—	$	—

Costs

The components of net periodic benefit cost (credit) recognized in the statement of operations were as follows:


	Year Ended December 31, 2023						Year Ended December 31, 2022						Year Ended December 31, 2021
	Pension				Post-Retirement		Pension				Post-Retirement		Pension				Post-Retirement
	Domestic		International		Domestic		Domestic		International		Domestic		Domestic		International		Domestic
	(In thousands)
Service cost	$	211	$	—	$	4	$	3,562	$	—	$	7	$	368	$	—	$	1
Interest cost	3,140		19,610		231		4,372		15,014		262		224		981		22
Expected return on plan assets	(1,881)		(19,586)		—		(2,748)		(16,857)		—		(564)		(1,640)		—

Actuarial (gain) loss recognition	(932)		(225)		(496)		8,154		208,957		(3,717)		(2,480)		9,724		(132)
Settlement	—		—		—		(918)		—		(3,037)		—		—		—
Contractual termination benefits	—		—		—		—		—		—		11,785		—		—
Curtailment gain	—		—		—		(3,060)		—		—		—		—		—
Net periodic benefit cost (credit)	$	538	$	(201)	$	(261)	$	9,362	$	207,114	$	(6,485)	$	9,333	$	9,065	$	(109)

For the international plans, the actuarial loss for the year ended December 31, 2022 is the result of the decrease in the net asset position due to higher interest rates described above. For the domestic pension and postretirement plans, the curtailment and settlement gains during the year ended December 31, 2022 were triggered by the freeze and termination events described above.

The contractual termination benefit charges for the domestic plans for the year ended December 31, 2021 were related to change-in-control agreements for six executives. The change-in-control payments were triggered by IAC's acquisition of Meredith. The employment agreements for the covered executives provided for immediate vesting in any unvested benefits, as well as an additional three years of continued service, age and pay credit in each of the pension plans in which they were participants. These payments are further discussed in "Note 11—Dotdash Meredith Restructuring Charges, Transaction-Related Expenses and Change-in-Control Payments."

The components of net periodic benefit cost (credit), other than the service cost component, are included in "Other income (expense), net" in the statement of operations.

Assumptions

Benefit obligations were determined using the following weighted average assumptions:


	Year Ended December 31, 2023						Year Ended December 31, 2022
	Pension				Postretirement		Pension				Postretirement
	Domestic		International		Domestic		Domestic		International		Domestic

Discount rate	5.19	%	4.06	%	5.11	%	5.41	%	4.13	%	5.46	%
Rate of compensation increase	2.90	%	N/A		3.50	%	2.99	%	N/A		3.50	%
Cash balance interest credit rate	2.39	%	N/A		N/A		2.39	%	N/A		N/A

Net periodic benefit cost (credit) were determined using the following weighted average assumptions:


	Year Ended December 31, 2023						Year Ended December 31, 2022						Year Ended December 31, 2021
	Pension				Post-Retirement		Pension				Post-Retirement		Pension				Post-Retirement
	Domestic		International		Domestic		Domestic		International		Domestic		Domestic		International		Domestic

Discount rate	5.48	%	4.13	%	5.46	%	3.28	%	1.67	%	2.61	%	2.02	%	1.40	%	2.52	%
Expected return on plan assets	4.48	%	4.12	%	N/A		2.80	%	1.90	%	N/A		6.00	%	1.90	%	N/A
Rate of compensation increase	2.99	%	N/A		3.50	%	2.95	%	N/A		3.50	%	2.90	%	N/A		3.50	%
Cash balance interest credit rate	2.39	%	N/A		N/A		3.65	%	N/A		N/A		2.04	%	N/A		N/A

The assumed healthcare trend rates used to measure the expected cost of benefits were as follows:


	Postretirement
	2023		2022		2021

Initial level	6.00	%	6.25	%	6.50	%
Ultimate level	5.00	%	5.00	%	5.00	%
Years to ultimate level	4		5		6

Since the Company utilizes the mark-to-market approach to account for pension and postretirement benefits, the expected long-term rate of return on assets has no effect on the overall amount of net periodic benefit cost (credit) recorded for the year. For 2024, the expectation for the U.K. annuity contracts represents the implied yields for those contracts, while for the domestic plan it represents the expected yield on the short-term fixed income securities held.

The value (market-related value) of plan assets is multiplied by the expected long-term rate of return on assets to compute the expected return on plan assets, a component of net periodic benefit cost (credit). The market-related value of plan assets is fair value.

Plan Assets

The targeted and actual asset allocation for investments held by the Company’s pension plans are solely attributable to securities other than equity or fixed income securities. The investments held by the Company’s pension plans as of December 31, 2023 primarily include insurance annuity contracts and cash and cash equivalents. The investments held by the Company’s pension plans as of December 31, 2022 primarily include insurance annuity contracts, U.S. Treasury securities and cash and cash equivalents.

Due to the decision to freeze and terminate the U.S. funded pension plan in 2022, the plan fiduciaries shifted the investment strategy to seek to preserve capital to protect the strong funded status, manage liquidity to align with potential benefit commencements and optimize yield to take advantage of the rising interest rate environment. The plan initially adopted a fixed income ladder investment strategy through which most of the plan assets were invested in U.S. Treasury securities of various maturities and a money market fund that invests mostly in U.S. Treasury securities. During 2023, principally all of the plan assets were reinvested in the money market fund as the U.S. Treasury securities matured in an effort to increase liquidity. These cash and cash equivalents that represent the investment balance in the U.S. represent Level 1 fair value measurements. Refer to "Note 2—Summary of Significant Accounting Policies" for a discussion of the three levels in the hierarchy of fair values.

The investments of the IPC Plan as of December 31, 2023 and 2022 primarily include insurance annuity contracts and cash and cash equivalents. Refer to further discussion of the insurance annuity contracts above.

Fair value measurements for the international pension plan assets were as follows:


	December 31, 2023
	Quoted Market Prices for Identical Assets in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
	(In thousands)
Cash and cash equivalents	$	8,199	$	—	$	—	$	8,199



Fixed income	—		—		399		399

Insurance annuity contracts	—		—		480,103		480,103
Total assets at fair value	$	8,199	$	—	$	480,502	$	488,701


	December 31, 2022
	Quoted Market Prices for Identical Assets in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
	(In thousands)
Cash and cash equivalents	$	7,613	$	—	$	—	$	7,613




Insurance annuity contracts	—		—		460,278		460,278
Total assets at fair value	$	7,613	$	—	$	460,278	$	467,891

The annuity contracts held by the IPC Plan are valued using significant unobservable inputs. Refer to "Note 2—Summary of Significant Accounting Policies" for a discussion of the three levels in the hierarchy of fair values.

The following table provides a reconciliation of the beginning and ending balances of assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3):


	December 31,
	2023		2022
	(In thousands)
Balance at beginning of year	$	460,278	$	313,095

Purchases	—		440,606
Settlements	(17,378)		(13,206)
Change in fair value	12,915		(237,248)
Foreign currency translation	24,253		(42,969)
Other	434		—
Balance at end of year	$	480,502	$	460,278

There were no transfers in or out of Level 3 investments for the years ended December 31, 2023 and 2022.

Cash Flows

The Company does not have a minimum funding requirement for the qualified domestic pension plan in 2024 and does not expect to have to make any contributions to the plan in the future due to its termination.

While the Company currently does not expect to be required to make any additional contributions to the IPC Plan, the Company has deposited amounts into an escrow account for the benefit of the IPC Plan that total £5.6 million at December 31, 2023.

The following benefit payments, which will primarily be made from the funded plans, are expected to be paid:


	Pension Benefits				Postretirement Benefits
	Domestic		International		Domestic
Years Ending December 31,	(In thousands)
2024	$	54,578	$	15,981	$	444
2025	688		16,785		415
2026	386		17,619		389
2027	401		18,548		372
2028	619		19,429		360
Thereafter	2,314		111,180		1,575
Net amount recognized, end of year	$	58,986	$	199,542	$	3,555

Defined Contribution Plans

IAC Inc. Retirement Savings Plan

IAC employees in the U.S. can elect to participate in a retirement savings program, the IAC Inc. Retirement Savings Plan (the "IAC Plan"), that qualifies under Section 401(k) of the Internal Revenue Code. Under the IAC Plan, participating employees may contribute up to 50% of their eligible compensation, but not more than statutory limits. The Company matches 100% of the first 10% of an employee's contribution, subject to IRS limits on the Company's matching contribution maximum, that a participant contributes to the IAC Plan, except for Dotdash Meredith and Angi Inc. Dotdash Meredith matches 100% of the first 5% of employee contributions for employees who were previously under the Meredith Savings and Investment Plan (the "Meredith Plan") described below and Angi Inc. matches fifty cents for each dollar a participant contributes in the IAC Plan, with a maximum contribution of 3% of a participant's eligible compensation. The IAC Plan limits Company matching contributions to $10,000 per participant on an annual basis. Matching contributions to the IAC Plan for the years ended December 31, 2023, 2022 and 2021 were $36.1 million, $25.6 million and $22.0 million, respectively. Matching contributions are invested in the same manner as each participant's voluntary contributions in the investment options provided under the IAC Plan. An investment option in the IAC Plan is IAC common stock, but neither participant nor matching contributions are required to be invested in IAC common stock. The increase in matching contributions in 2023 is the result of the Meredith Plan merger with additional employees covered by the IAC Plan. The increase in matching contributions in 2022 is due primarily to an increase in employee contributions.

IAC also has or participates in various benefit plans, principally defined contribution plans, for its international employees. IAC's contributions to these plans for the years ended December 31, 2023, 2022 and 2021 were $1.4 million, $1.1 million and $0.9 million, respectively.

Meredith Savings and Investment Plan

In connection with the acquisition of Meredith, the Company assumed the Meredith Plan, its U.S. defined contribution savings plan, which allowed eligible employees to contribute a percentage of their salary, commissions and bonuses in accordance with plan limitations and provisions of Section 401(k) of the Internal Revenue Code and Dotdash Meredith made matching contributions to the Meredith plan subject to the plan limits. Prior to January 1, 2023, only Dotdash employees located in the U.S. could participate in the IAC Plan described above. Effective January 1, 2023, Dotdash Meredith, as permitted by the relevant IAC Plan documents, merged the Meredith Plan into the IAC Plan.

Under the Meredith Plan, the Company matched 100% of the first 4% and 50% of the next 1% of employee contributions for employees eligible for the Company’s pension benefits and 100% of the first 5% for employees ineligible for the Company’s pension benefits. Matching contributions to the Meredith Plan for the years ended December 31, 2022 and 2021 were $10.4 million and $0.8 million, respectively.

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480794/715-70-50-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480482/715-20-55-17

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (q)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (l)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//715/tableOfContent

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (o)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
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-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480126/715-20-S99-2

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 60
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480266/715-60-50-3

+ Details

CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Common Stock, $0.0001 par value
Common stock, par value (USD per share)	$ 0.0001	$ 0.0001
Class B Common Stock, $0.0001 par value
Common stock, par value (USD per share)	0.0001	0.0001
Common Stock \| Common Stock, $0.0001 par value
Common stock, par value (USD per share)	0.0001
Common Stock \| Class B Common Stock, $0.0001 par value
Common stock, par value (USD per share)	$ 0.0001
Common Stock \| Common Stock, $0.001 par value
Common stock, par value (USD per share)		0.001	$ 0.001
Common Stock \| Class B Common Stock, $0.001 par value
Common stock, par value (USD per share)		$ 0.001	$ 0.001

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Capitalized Contract Cost [Line Items]
Amortization of capitalized contract costs	$ 97,400	$ 95,500	$ 125,900
Revenue	$ 4,365,235	5,235,280	3,699,627
Period of payment due from customers for accounts receivable	30 days
Current deferred revenue	$ 143,449	157,124	165,500
Non-current deferred revenue	100	200	400
Deferred revenue recognized during period	$ 152,700	152,000
Deferred revenue reclassified			7,300
Deferred revenue related to business sold		1,100
Change In Accounting Principle, Recording Revenue On Net Basis
Capitalized Contract Cost [Line Items]
Revenue		$ (242,600)	$ (180,700)
Angi Inc.
Capitalized Contract Cost [Line Items]
Period of membership subscription	1 year

SUBSEQUENT EVENT - Mosaic Group's Revenue and Reconciliation of Operating Income (Loss) to Adjusted EBITDA (Details) - USD ($) $ in Thousands	3 Months Ended					12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Subsequent Event [Line Items]
Revenue						$ 4,365,235	$ 5,235,280	$ 3,699,627
Operating (Loss) Income						(260,763)	(474,771)	(137,067)
Amortization of intangibles						295,970	307,718	74,839
Depreciation						175,096	130,986	75,015
Goodwill impairment						9,000	112,753	0
Adjusted EBITDA						336,484	199,550	107,266
Emerging & Other
Subsequent Event [Line Items]
Goodwill impairment						9,000	112,753
Emerging & Other \| Mosaic Group
Subsequent Event [Line Items]
Goodwill impairment		$ 9,000			$ 86,700		86,700
Operating Segments \| Emerging & Other
Subsequent Event [Line Items]
Revenue						695,057	823,465	753,203
Operating (Loss) Income						18,763	(156,839)	(31,334)
Amortization of intangibles						8,275	16,232	39,891
Depreciation						3,996	2,438	1,683
Goodwill impairment						9,000	112,753
Adjusted EBITDA						41,839	$ (23,043)	$ 25,872
Operating Segments \| Emerging & Other \| Mosaic Group
Subsequent Event [Line Items]
Revenue	$ 37,498	38,672	$ 39,014	$ 40,501		155,685
Operating (Loss) Income	6,588	(5,427)	4,160	6,243		11,564
Amortization of intangibles	48	149	149	149		495
Depreciation	3	3	4	5		15
Goodwill impairment	0	9,000	0	0		9,000
Adjusted EBITDA	$ 6,639	$ 3,725	$ 4,313	$ 6,397		$ 21,074

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Schedule of Capitalized Costs to Obtain a Contract with a Customer

The following table presents the capitalized costs to obtain a contract with a customer for the years ended December 31, 2023 and 2022:


	Years Ended December 31,
	2023				2022
	Sales Commissions		App Store Fees		Total		Sales Commissions		App Store Fees		Total
	(In thousands)
Current	$	36,589	$	7,835	$	44,424	$	39,590	$	8,266	$	47,856
Non-current	6,058		—		6,058		5,667		—		5,667
Total	$	42,647	$	7,835	$	50,482	$	45,257	$	8,266	$	53,523

Schedule of Estimated Useful Lives of Property and Equipment


Asset Category			Estimated Useful Lives
Capitalized software and computer equipment			2 to 3 Years
Furniture and other equipment			3 to 12 Years
Buildings and leasehold improvements			3 to 39 Years


	December 31,
	2023		2022
	(In thousands)
Capitalized software and computer equipment	$	329,312	$	291,600
Buildings and leasehold improvements	268,840		305,304
Furniture and other equipment	131,442		137,570
Land	86,032		20,234
Projects in progress	13,911		30,379
Total gross carrying amount	829,537		785,087
Accumulated depreciation and amortization	(374,256)		(274,473)
Capitalized software, equipment, buildings, land and leasehold improvements, net	$	455,281	$	510,614

BUSINESS COMBINATION - Pro-Forma Financial Information (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares
Business Acquisition, Pro Forma Information [Abstract]
Revenue \| $	$ 5,599,334
Net earnings from continuing operations \| $	$ 650,189
Basic earnings (loss) per share from continuing operations (USD per share)	$ 7.39
Diluted earnings (loss) per share from continuing operations (USD per share)	$ 6.95
Net earnings attributable to IAC shareholders \| $	$ 656,920
Basic earnings (loss) per share attributable to IAC shareholders (USD per share)	$ 7.36
Diluted earnings (loss) per share attributable to IAC shareholders (USD per share)	$ 6.93

CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities attributable to continuing operations:
Net earnings (loss)	$ 258,317	$ (1,192,455)	$ 588,985
Less: Earnings (loss) from discontinued operations, net of tax	0	2,694	(1,831)
Net earnings (loss) from continuing operations	258,317	(1,195,149)	590,816
Adjustments to reconcile net earnings (loss) to net cash provided by (used in) operating activities attributable to continuing operations:
Amortization of intangibles	295,970	307,718	74,839
Depreciation	175,096	130,986	75,015
Stock-based compensation expense	117,181	123,476	79,487
Non-cash lease expense (including right-of-use asset impairments)	101,695	70,922	35,737
Deferred income taxes	88,792	(337,758)	133,377
Provision for credit losses	87,729	116,553	89,893
Losses (gains) on investments in equity securities and sales of businesses, net	19,346	(38,956)	(44,835)
Goodwill impairment	9,000	112,753	0
Pension and postretirement benefit cost	76	209,991	18,212
Unrealized (gain) loss on investment in MGM Resorts International	721,668	(723,515)	789,283
Unrealized (increase) decrease in the estimated fair value of a warrant	(2,832)	62,495	(104,018)
Other adjustments, net	(12,315)	17,963	45,302
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable	(37,296)	(66,706)	(154,887)
Other assets	11,281	8,920	4,185
Operating lease liabilities	(74,256)	(63,843)	(30,995)
Accounts payable and other liabilities	(120,259)	(247,912)	90,265
Income taxes payable and receivable	2,884	(6,739)	(2,506)
Deferred revenue	(9,213)	(11,020)	8,296
Net cash provided by (used in) operating activities attributable to continuing operations	189,528	(82,791)	118,900
Cash flows from investing activities attributable to continuing operations:
Capital expenditures	(141,364)	(139,753)	(90,210)
Net proceeds from sales of assets	29,805	9,780	1,221
Proceeds from maturities of marketable debt securities	550,000	0	225,000
Purchases of marketable debt securities	(455,413)	(233,928)	0
Purchases of investments	(103,555)	(3,036)	(24,290)
Net proceeds from the sales of businesses and investments	11,861	90,767	16,451
Purchases of investment in MGM Resorts International	0	(244,256)	0
Net collections of notes receivable	11,297	19,497	0
Acquisitions, net of cash acquired	0	0	(2,699,643)
Cash distribution related to the spin-off of IAC's investment in Vimeo	0	0	(333,184)
Other, net	9,902	6,121	(2,848)
Net cash used in investing activities attributable to continuing operations	(87,467)	(494,808)	(2,907,503)
Cash flows from financing activities attributable to continuing operations:
Principal payments on Dotdash Meredith Term Loans	(30,000)	(30,000)	0
Proceeds from the issuance of Dotdash Meredith Term Loans	0	0	1,600,000
Principal payments on ANGI Group Term Loan	0	0	(220,000)
Debt issuance costs	0	(785)	(23,548)
Proceeds from the exercise of IAC stock options	130	0	1,496
Proceeds from the issuance of Vivian Health preferred shares, net of fees	0	34,700	0
Purchase of noncontrolling interests	0	(1,179)	(30,339)
Other, net	(8)	4,975	(18,578)
Net cash (used in) provided by financing activities attributable to continuing operations	(223,013)	(112,651)	1,115,737
Total cash used in continuing operations	(120,952)	(690,250)	(1,672,866)
Net cash provided by operating activities attributable to discontinued operations	0	0	18,053
Net cash provided by investing activities attributable to discontinued operations	0	0	7,602
Net cash provided by financing activities attributable to discontinued operations	0	0	293,577
Total cash provided by discontinued operations	0	0	319,232
Effect of exchange rate changes on cash and cash equivalents and restricted cash	1,124	(5,545)	(1,612)
Net decrease in cash and cash equivalents and restricted cash	(119,828)	(695,795)	(1,355,246)
Cash and cash equivalents and restricted cash at beginning of period	1,426,069	2,121,864	3,477,110
Cash and cash equivalents and restricted cash at end of period	1,306,241	1,426,069	2,121,864
IAC
Cash flows from financing activities attributable to continuing operations:
Withholding taxes paid on behalf of employees on net settled stock-based awards	(10,587)	(18,068)	(95,983)
Purchase of treasury stock	(165,622)	(85,323)	0
Angi Inc.
Cash flows from financing activities attributable to continuing operations:
Withholding taxes paid on behalf of employees on net settled stock-based awards	(5,994)	(8,827)	(61,908)
Purchase of treasury stock	$ (10,932)	$ (8,144)	$ (35,403)

DOTDASH MEREDITH RESTRUCTURING CHARGES, TRANSACTION-RELATED EXPENSES AND CHANGE-IN-CONTROL PAYMENTS - Summary of Costs Incurred, Payments and Related Accruals (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Reserve [Roll Forward]
Accrued at beginning of period	$ 27,394
Charges Incurred	3,674	$ 80,238
Reversal of Initial Cost	(4,199)
Payments	(24,979)	(31,110)
Non-cash		(21,734)
Accrued at end of period	1,890	27,394
Charges incurred	79,713	80,200
Impairment charges		21,300
Non-cash lease expense (including right-of-use asset impairments)	48,900	2,300	$ 10,500
Impairment of leasehold improvements		7,000
Inventory write-off	400
Digital
Restructuring Reserve [Roll Forward]
Accrued at beginning of period	10,950
Charges Incurred	1,371	39,225
Reversal of Initial Cost	(1,827)
Payments	(10,021)	(6,966)
Non-cash		(21,309)
Accrued at end of period	473	10,950
Charges incurred	38,769
Print
Restructuring Reserve [Roll Forward]
Accrued at beginning of period	12,055
Charges Incurred	1,625	33,432
Reversal of Initial Cost	(1,645)
Payments	(10,916)	(20,952)
Non-cash		(425)
Accrued at end of period	1,119	12,055
Charges incurred	33,412
Other
Restructuring Reserve [Roll Forward]
Accrued at beginning of period	4,389
Charges Incurred	678	7,581
Reversal of Initial Cost	(727)
Payments	(4,042)	(3,192)
Non-cash		0
Accrued at end of period	298	$ 4,389
Charges incurred	$ 7,532

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The Company prepares its consolidated financial statements (referred to herein as "financial statements") in accordance with U.S. generally accepted accounting principles ("GAAP").

The financial statements include the accounts of the Company, all entities that are wholly-owned by the Company and all entities in which the Company has a controlling financial interest. All intercompany transactions and balances between and among the Company and its subsidiaries have been eliminated.

COVID-19 Update

The COVID-19 pandemic and the various responses to it created significant volatility, uncertainty and economic disruption. Recently there has been a return to normal societal interactions, including the way the Company operates its businesses.

Angi Inc.

As previously disclosed, the impact of COVID-19 initially resulted in a decline in demand for service requests, driven primarily by decreases in demand in certain categories of jobs (particularly discretionary indoor projects). While Angi Inc. experienced a rebound in service requests in early 2021, service requests started to decline in May 2021 and continued to decline during 2022 due, in part, to COVID-19 measures that were more widely in place in prior periods. Angi Inc.'s ability to monetize service requests rebounded modestly in the second half of 2021 and the first half of 2022; however, that improved monetization plateaued in the third quarter of 2022 returning to monetization rates similar to those experienced pre-COVID-19.

Dotdash Meredith

Digital advertising and performance marketing revenue at Dotdash, excluding Meredith, declined in 2022, compared to 2021 due in part to lower traffic to its sites compared to prior year COVID-19 traffic highs. Post-acquisition, Meredith has experienced a similar impact to its digital advertising revenue primarily from lower programmatic revenue as a result of traffic declines in the first quarter of 2023 due to COVID-19 supported traffic levels in early 2022.

Outlook

The extent to which developments related to the COVID-19 pandemic and measures designed to curb its spread continue to impact the Company’s business, financial condition and results of operations will depend on future developments, all of which are highly uncertain and many of which are beyond the Company’s control, including the severity of resurgences of COVID-19 caused by variant strains of the virus, the effectiveness of vaccines and attitudes toward receiving them, materials and supply chain constraints, labor shortages, the scope of governmental and other restrictions on travel, discretionary services and other activity, and public reactions to these developments.

Accounting Estimates

Management of the Company is required to make certain estimates, judgments and assumptions during the preparation of its financial statements in accordance with GAAP. These estimates, judgments and assumptions impact the reported amounts of assets, liabilities, revenue and expenses and the related disclosure of assets and liabilities. Actual results could differ from these estimates.

On an ongoing basis, the Company evaluates its estimates, judgments and assumptions, including those related to: the fair values of cash equivalents and marketable debt and equity securities; the carrying value of accounts receivable, including the determination of the allowance for credit losses; the determination of the customer relationship period for certain costs to obtain a contract with a customer; the recoverability of right-of-use assets ("ROU assets"); the useful lives and recoverability of capitalized software, equipment, buildings and leasehold improvements and definite-lived intangible assets; the recoverability of goodwill and indefinite-lived intangible assets; the fair value of equity securities without readily determinable fair values; the fair value of interest rate swaps; contingencies; the fair value of acquisition-related contingent consideration arrangements; unrecognized tax benefits; the liability for potential refunds and customer credits; the valuation allowance for deferred income tax assets; pension and postretirement benefit expenses, including actuarial assumptions regarding discount rates, expected returns on plan assets, inflation and healthcare costs; and the fair value of and forfeiture rates for stock-based awards, among others. The Company bases its estimates, judgments and assumptions on historical experience, its forecasts and budgets and other factors that the Company considers relevant.

Interest Rate Swaps

In March 2023, Dotdash Meredith entered into interest rate swaps for a total notional amount of $350 million, which synthetically converted a portion of the Dotdash Meredith Term Loan B from a variable rate to a fixed rate to manage interest rate risk exposure beginning on April 3, 2023. Dotdash Meredith designated the interest rate swaps as cash flow hedges and applies hedge accounting to these contracts in accordance with Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 815, Derivatives and Hedging. As cash flow hedges, the interest rate swaps are recognized at fair value on the balance sheet as either assets or liabilities, with the changes in fair value recorded in "Accumulated other comprehensive loss" in the balance sheet and reclassified into “Interest expense” in the statement of operations in the periods in which the interest rate swaps affect earnings. Dotdash Meredith assessed hedge effectiveness at the time of entering into these agreements and determined these interest rate swaps are expected to be highly effective. Dotdash Meredith evaluates the hedge effectiveness of the interest rate swaps quarterly, or more frequently, if necessary, by verifying (i) that the critical terms of the interest rate swaps continue to match the critical terms of the hedged interest payments and (ii) that it is probable the counterparties will not default. If the two requirements are met, the interest rate swaps are determined to be effective and all changes in the fair value of the interest rate swaps are recorded in "Accumulated other comprehensive loss." The cash flows related to interest settlements of the hedged monthly interest payments are classified as operating activities in the statement of cash flows, consistent with the interest expense on the related Dotdash Meredith Term Loan B. See "Note 7—Long-term Debt" for additional information.

General Revenue Recognition

The Company accounts for a contract with a customer when it has approval and commitment from all authorized parties, the rights of the parties and payment terms are identified, the contract has commercial substance and collectability of consideration is probable. Revenue is recognized when control of the promised services or goods is transferred to the Company’s customers and in an amount that reflects the consideration the Company expects to be entitled to in exchange for those services or goods.

The Company's disaggregated revenue disclosures are presented in "Note 1 0 —Segment Information."

Transaction Price

The objective of determining the transaction price is to estimate the amount of consideration the Company is due in exchange for its services or goods, including amounts that are variable. Contracts may include sales incentives, such as volume discounts or rebates, which are accounted for as variable consideration when estimating the transaction price. The Company also maintains a liability for potential future refunds and customer credits, which is recorded as a reduction of revenue. All estimates of variable consideration are based upon historical experience and customer trends. The Company determines the total transaction price, including an estimate of any variable consideration, at contract inception and reassesses this estimate each reporting period.

The Company excludes from the measurement of transaction price all taxes assessed by governmental authorities that are both (i) imposed on and concurrent with a specific revenue-producing transaction and (ii) collected from customers. Accordingly, such tax amounts are not included as a component of revenue or cost of revenue.

Arrangements with Multiple Performance Obligations

The Company’s contracts with customers may include multiple performance obligations. For such arrangements, the Company allocates revenue to each performance obligation based on its relative standalone selling price. The Company generally determines standalone selling prices based on the prices charged to customers, which are directly observable or an estimate if not directly observable.

Practical Expedients and Exemptions

For contracts that have an original duration of one year or less, the Company uses the practical expedient available under ASC Topic 606, Revenue from Contracts with Customers ("ASC 606"), applicable to such contracts and does not consider the time value of money.

In addition, as permitted under the practical expedient available under ASC 606, the Company does not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less, (ii) contracts with variable consideration that is tied to sales-based or usage-based royalties, allocated entirely to unsatisfied performance obligations, or to a wholly unsatisfied promise accounted for under the series guidance, and (iii) contracts for which the Company recognizes revenue at the amount which it has the right to invoice for services performed.

The Company also applies the practical expedient for sales commissions where the anticipated customer relationship period is one year or less as noted below.

Costs to Obtain a Contract with a Customer

The Company uses a portfolio approach to assess the accounting treatment of the incremental costs to obtain a contract with a customer. The Company recognizes an asset if we expect to recover those costs. To the extent that these costs are capitalized, the resultant asset is amortized on a systematic basis consistent with the pattern of the transfer of the services to which the asset relates. The Company has determined that certain costs, primarily commissions paid to employees pursuant to certain sales incentive programs and mobile app store fees, meet the requirements to be capitalized as a cost of obtaining a contract.

Commissions Paid to Employees Pursuant to Sales Incentive Programs

The Company has determined that commissions paid to employees pursuant to certain sales incentive programs meet the requirements to be capitalized as the incremental costs to obtain a contract with a customer. When customer renewals are expected and the renewal commission is not commensurate with the initial commission, the average customer life includes renewal periods. Capitalized commissions paid to employees pursuant to these sales incentive programs are amortized over the estimated customer relationship period and are included in "Selling and marketing expense" in the statement of operations. The Company calculates the anticipated customer relationship period as the average customer life, which is based on historical data.

For sales incentive programs where the anticipated customer relationship period is one year or less, the Company has elected the practical expedient to expense the commissions as incurred. Beginning October 1, 2022, commissions earned on certain transactions within the Angi Inc. Ads and Leads segment were expensed as incurred after determining the related customer relationship was less than one year.

App Store Fees

The Company pays fees to the Apple App Store and the Google Play Store for the distribution of our paid mobile apps. The Company capitalizes and amortizes mobile app store fees related to subscriptions over the term of the applicable subscription. The amortization of mobile app store fees is included in "Cost of revenue" in the statement of operations.

The following table presents the capitalized costs to obtain a contract with a customer for the years ended December 31, 2023 and 2022:


	Years Ended December 31,
	2023				2022
	Sales Commissions		App Store Fees		Total		Sales Commissions		App Store Fees		Total
	(In thousands)
Current	$	36,589	$	7,835	$	44,424	$	39,590	$	8,266	$	47,856
Non-current	6,058		—		6,058		5,667		—		5,667
Total	$	42,647	$	7,835	$	50,482	$	45,257	$	8,266	$	53,523

During the years ended December 31, 2023, 2022 and 2021, the Company recognized expense of $97.4 million, $95.5 million and $125.9 million, respectively, related to the amortization of capitalized costs to obtain a contract with a customer.

The current and non-current capitalized costs to obtain a contract with a customer are included in "Other current assets" and "Other non-current assets," respectively, in the balance sheet.

Commissions Paid to Third-Party Agent Sales of Magazine Subscriptions

Dotdash Meredith uses third-party agents to obtain certain subscribers. The agents are paid a commission, which can be as much as the subscription price charged to the subscriber. Dotdash Meredith subscriptions do not have substantive termination penalties; therefore, the contract term is determined on an issue-by-issue basis. Accordingly, these commissions do not qualify for capitalization because there is no contract with a customer until a copy is prepared for shipment, at which point these costs are expensed. Dotdash Meredith recognizes a liability to the extent the commission is refundable to the third-party agent. Dotdash Meredith expenses additional amounts paid to agents (such as per subscriber bounties) to acquire subscribers as incurred. Expenses related to third-party agent sales of magazine subscriptions are included in "Selling and marketing expense" in the statement of operations.

Dotdash Meredith

Dotdash Meredith revenue consists of digital and print revenue. Digital revenue consists principally of advertising, performance marketing and licensing and other revenue. Print revenue consists principally of subscription, advertising, project and other, newsstand and performance marketing revenue.

Digital

Advertising

Advertising revenue is generated primarily through digital advertisements sold by Dotdash Meredith's sales team directly to advertisers or through advertising agencies and programmatic advertising networks. Performance obligations consist of delivering advertisements with a promised number of actions related to the advertisements, such as impressions or clicks, displaying advertisements for an agreed upon amount of time or providing available advertising space. The price is determined by an agreed-upon pricing model such as CPM (cost-per-1,000 impressions), CPC (cost-per-click) or flat fees.

The Company recognizes revenue over time as performance obligations are satisfied. Revenue is recognized using an output method based on actions delivered or time elapsed depending on the nature of the performance obligation. The Company considers the right to receive consideration from a customer to correspond directly with the value to the customer of our performance completed to date. The customer is invoiced in the month following the month that the advertisements are delivered.

Performance Marketing

Performance marketing revenue includes commissions generated through affiliate commerce, affinity marketing and performance marketing channels. Affiliate commerce and performance marketing commission revenue is generated when Dotdash Meredith brands refer consumers to commerce partner websites resulting in a purchase or transaction. Performance marketing and affiliate commerce partners are invoiced monthly.

Affinity marketing programs are arrangements where Dotdash Meredith acts as an agent for both Dotdash Meredith and third-party publishers to market and place magazine subscriptions online. Commissions are earned when a subscriber name has been provided to the publisher. Dotdash Meredith net settles with the third-party publishers monthly.

Licensing and Other Revenue

Licensing revenue includes symbolic licenses, which include direct-to-retail product partnerships based on Dotdash Meredith's brands, and functional licenses, which consist of certain content licensing agreements. Revenues from symbolic licenses are in the form of a royalty based on the sale or usage of the branded product, which is recognized over time when the sale or use occurs. Generally, revenues are accrued based on estimated sales and adjusted as actual sales are reported by partners. These adjustments are typically recorded within three months of the initial estimates and have not been material. Minimum guarantees, if applicable, are generally recognized as revenue over the term of the applicable contract.

Revenue from functional licenses is recognized as Dotdash Meredith's content is delivered or access to the content is granted. Revenue from functional licenses is recognized at a point-in-time when access to the completed content is granted to the partner.

Subscription Revenue

Subscription revenue relates to the sale of Dotdash Meredith magazines. Subscriptions do not have substantive termination penalties; therefore, the contract term is determined on an issue-by-issue basis. Most of Dotdash Meredith’s subscription sales are prepaid at the time of order and may be canceled at any time for a refund of the pro rata portion of the initial subscription. Accordingly, amounts received from prepaid subscriptions are recorded as a customer deposit liability rather than as deferred revenue. The delivery of each issue is determined to be a distinct performance obligation that is satisfied; revenue is recognized when the publication is sent to the customer.

Advertising

Advertising revenue relates to the sale of advertising in magazines directly to advertisers or through advertising agencies. Revenue is recognized on the magazine issue’s on-sale date, which is the date the magazine is published. The customer is invoiced, net of agency commissions, once the advertisements are published under normal industry trade terms.

Project and Other Revenue

Project and other revenue relates to other revenue streams that are primarily project based and may relate to any one or combination of the following activities: audience targeted advertising, custom publishing, content strategy and development, email marketing, social media, database marketing and search engine optimization. Depending on the contractual arrangement, revenue is recognized either as the purchased advertising is run on third-party platforms, or over the contractual period as the products do not have an alternate use to the Company or its other clients. Payment terms vary based on the nature of the contract.

Newsstand Revenue

Newsstand revenue is related to single copy magazines or bundles of single copy magazines sold to wholesalers for resale on newsstands. Publications sold to magazine wholesalers are sold with the right to receive credit from Dotdash Meredith for magazines returned to the wholesaler by retailers. Revenue is recognized on the issue's on-sale date as the date aligns most closely with the date that control is transferred to the customer. Wholesalers are invoiced a percentage of estimated final sales the month after the issue’s initial on-sale date. Generally, the previously estimated revenue is adjusted based upon the final sales, which occur when the final amounts are settled under normal industry terms.

Performance Marketing

Performance marketing revenue principally consists of affinity marketing revenue through which Dotdash Meredith places magazine subscriptions for third-party publishers. Commissions are earned when a subscriber name has been provided to the publisher and any free trial period is completed. Dotdash Meredith net settles with these third parties monthly.

Angi Inc.

Ads and Leads Revenue

Ads and Leads revenue includes consumer connection revenue which comprises fees paid by service professionals for consumer matches (regardless of whether the service professional ultimately provides the requested service), revenue from service professionals under contract for advertising, membership subscription revenue from service professionals and consumers and revenue from other services. Consumer connection revenue varies based upon several factors, including the service requested, product experience offered, and geographic location of service. Consumer connection revenue is generally billed one week following a consumer match, with payment due upon receipt of invoice. Angi Inc. maintains a liability for potential credits issued to services providers. Angi Inc. service professionals generally pay for advertisements in advance on a monthly or annual basis at the option of the service professional, with the average advertising contract term being approximately one year. Angi website, mobile and call center advertising revenue is recognized ratably over the contract term. Revenue from the sale of advertising in the Angie’s List Magazine is recognized in the period in which the publication is distributed. Service professional membership subscription revenue is initially deferred upon receipt of payment and is recognized using the straight-line method over the applicable subscription period, which is typically one year. Angi Inc. prepaid consumer membership subscription fees are recognized as revenue using the straight-line method over the term of the applicable subscription period, which is typically one year.

Services Revenue

Services revenue primarily reflects domestic revenue from pre-priced offerings by which the consumer requests services through an Angi Inc. platform and Angi Inc. engages a service professional to perform the service. Consumers are billed when a job is scheduled through the Services platform. Billing practices are governed by the contract terms of each project as negotiated with the consumer. Billings do not necessarily correlate with revenue recognized over time as this is based on the timing of when the consumer receives the promised services.

From January 1, 2020 through December 31, 2022, Services recorded revenue on a gross basis. Effective January 1, 2023, Angi Inc. modified the Services terms and conditions so that the service professional, rather than Angi Inc., has the contractual relationship with the consumer to deliver the service and Angi Inc.'s performance obligation to the consumer is to connect them with the service professional. This change in contractual terms requires revenue to be reported as the net amount of what is received from the consumer after deducting the amounts owed to the service professional providing the service effective for all arrangements entered into after December 31, 2022. There is no impact to operating loss or Adjusted EBITDA from this change in revenue recognition. For the years ended December 31, 2022 and 2021, if Services revenue were recorded on a net basis, revenue would have been reduced by $242.6 million and $180.7 million, respectively.

International Revenue

International revenue primarily comprises consumer connection revenue for consumer matches and membership subscription revenue from service professionals and consumers.

Ask Media Group revenue consists primarily of advertising revenue generated principally through the display of paid listings in response to search queries, as well as from display advertisements appearing alongside content on its various websites and, to a lesser extent, affiliate commerce commission revenue. Paid listings are advertisements displayed on search results pages that generally contain a link to advertiser websites. The majority of the paid listings displayed by Ask Media Group is supplied to us by Google Inc. (“Google”) pursuant to our services agreement with Google. Pursuant to this agreement, Ask Media Group businesses transmit search queries to Google, which in turn transmits a set of relevant and responsive paid listings back to these businesses for display in search results. This ad-serving process occurs independently of, but concurrently with, the generation of algorithmic search results for the same search queries. Google paid listings are displayed separately from algorithmic search results and are identified as sponsored listings on search results pages. Paid listings are priced on a price-per-click basis and when a user submits a search query through an Ask Media Group business and then clicks on a Google paid listing displayed in response to the query, Google bills the advertiser that purchased the paid listing and shares a portion of the fee charged to the advertiser with the Ask Media Group business. The Company recognizes paid listing revenue from Google when it delivers the user’s click. In cases where the user’s click is generated due to the efforts of a third-party distributor, we recognize the amount due from Google as revenue and record a revenue share or other payment obligation to the third-party distributor as traffic acquisition costs.

Revenue from display advertising is generated through advertisements sold through programmatic advertising networks. Affiliate commerce commission revenue is generated when an Ask Media Group property refers users to commerce partner websites resulting in a purchase or transaction.

Desktop revenue largely consists of advertising revenue generated principally through the display of paid listings in response to search queries. The majority of the paid listings displayed are supplied to us by Google in the manner, and pursuant to the services agreement with Google, described above. Fees related to display advertisements are recognized when an advertisement is displayed. To a lesser extent, Desktop revenue also includes fees paid by subscribers for downloadable desktop applications as well as display advertisements. Fees for subscription downloadable desktop applications are generally recognized over the term of the applicable subscription period, which is primarily monthly.

Emerging & Other

Care.com generates revenue primarily through subscription fees from families and caregivers for its suite of products and services, as well as through annual contracts with employers who provide access to Care.com’s suite of products and services as an employee benefit and through contracts with businesses that recruit employees through its platform. Subscription fees from families and caregivers are deferred and recognized over the term of the applicable subscription period, which is typically up to one year. Fees from annual contracts with employers and businesses include subscription revenue, which is deferred and recognized over the applicable subscription period, and backup care services for employees, which is recognized upon delivery of the service.

Mosaic Group revenue consists primarily of fees paid by subscribers for downloadable mobile applications distributed through the Apple App Store and Google Play Store and fees received directly from consumers, as well as display advertisements. Fees related to subscription downloadable mobile applications are initially deferred and generally recognized either over the term of the subscription period, which is up to one year, for those applications that must be connected to our servers to function, or at the time of the sale when the software license is delivered. Fees related to display advertisements are recognized when an advertisement is displayed.

Roofing revenue for periods prior to its sale on November 1, 2023, primarily consisted of revenue from the roof replacement business offering by which the consumer purchased services directly from the Roofing business and Roofing then engaged a service professional to perform the service. Consumers typically paid when a job was completed and revenue was recognized based on the Company's progress in satisfying the roofing service.

Vivian Health revenue consists of subscription and usage revenue, which is generated through recruiting agencies and other employers that seek access to qualified healthcare professionals. Subscription revenue is recognized at the earlier of the full delivery of the promised services or over the length of the subscription period. There is usage revenue when the usage is in excess of the allotted amount included in the subscription, and is recognized in the period in which services were delivered.

The Daily Beast revenue consists of advertising revenue, which is generated primarily through display advertisements (sold directly and through programmatic advertising networks), and to a lesser extent, subscription revenue and affiliate commerce commission revenue. The performance obligations, timing of customer payments, and methods of revenue recognition are generally consistent with action-based advertising and time-based advertising revenue, as described above.

Revenue of IAC Films is generated primarily through media production and distribution. Production revenue is recognized when control is transferred to the customer to broadcast or exhibit.

Bluecrew revenue for periods prior to its sale on November 9, 2022 consisted of service revenue, which was generated through staffing workers and recognized as control of the promised services was transferred to our customers.

Accounts Receivable, Net of the Allowance for Credit Losses

Accounts receivable include amounts billed and currently due from customers. The allowance for credit losses is based upon a number of factors, including the length of time accounts receivable are past due, the Company’s previous loss history, the specific customer’s ability to pay its obligation and any other forward-looking data regarding customers' ability to pay that is available. Customer payments that are not collected in advance of the transfer of promised services or goods are generally due no later than 30 days from invoice date, with the exception of invoices at Dotdash Meredith, which vary by revenue stream as described above.

Deferred Revenue

Deferred revenue consists of payments that are received or are contractually due in advance of the Company’s performance obligation. The Company’s deferred revenue is reported on a contract-by-contract basis at the end of each reporting period. The Company classifies deferred revenue as current when the remaining term or expected completion of its performance obligation is one year or less. The current and non-current deferred revenue balances were $143.4 million and $0.1 million, respectively, at December 31, 2023, and $157.1 million and $0.2 million, respectively, at December 31, 2022. During the year ended December 31, 2023, the Company recognized $152.7 million of revenue that was included in the deferred revenue balance at December 31, 2022. During the year ended December 31, 2022, the Company recognized $152.0 million of revenue that was included in the deferred revenue balance at December 31, 2021. In addition to the revenue recognized, $7.3 million of the December 31, 2021 deferred revenue balance was reclassified to other balance sheet accounts and $1.1 million related to a business that was sold in 2022. The current and non-current deferred revenue balances were $165.5 million and $0.4 million, respectively, at December 31, 2021. Non-current deferred revenue is included in “Other long-term liabilities” in the balance sheet.

Cash and Cash Equivalents

Cash and cash equivalents include cash and short-term investments, with maturities of less than 91 days from the date of purchase. Domestically, cash equivalents primarily consist of AAA rated government money market funds and treasury discount notes. Internationally, cash equivalents primarily consist of AAA rated government money market funds and time deposits.

Accounting for Investments in Debt Securities

At times the Company invests in marketable debt securities with active secondary or resale markets to ensure portfolio liquidity to fund current operations or satisfy other cash requirements as needed. Marketable debt securities are adjusted to fair value each quarter, and the unrealized gains and losses, net of tax, are included in accumulated other comprehensive (loss) income as a separate component of shareholders’ equity. The specific-identification method is used to determine the cost of debt securities sold and the amount of unrealized gains and losses reclassified out of accumulated other comprehensive (loss) income into earnings. The Company also invests in non-marketable debt securities as part of its investment strategy. We review our debt securities for impairment each reporting period. The Company recognizes an unrealized loss on debt securities in net earnings when the impairment is determined to be other-than-temporary. Factors we consider in making such determination include the duration, severity and reason for the decline in value and the potential recovery and our intent to sell the debt security. We also consider whether we will be required to sell the security before recovery of its amortized cost basis and whether the amortized cost basis cannot be recovered because of credit losses. If an impairment is considered to be other-than-temporary, the debt security will be written down to its fair value and the loss will be recognized within "Other (expense) income, net" in the statement of operations. At December 31, 2023 and 2022 marketable debt securities consist of treasury discount notes of $149.0 million and $235.1 million, respectively.

Certain Risks and Concentrations

Services Agreement with Google (the "Services Agreement")

The Company and Google are parties to an amended Services Agreement, which automatically renewed effective March 31, 2023 and now expires on March 31, 2025. The Company earns certain other advertising revenue from Google that is not attributable to the Services Agreement. A meaningful portion of the Company’s net cash from operating activities that it can freely access is attributable to revenue earned pursuant to the Services Agreement and other revenue earned from Google.

For the years ended December 31, 2023, 2022 and 2021, total revenue earned from Google was $715.0 million, $701.5 million and $755.1 million, respectively, representing 16%, 13% and 20%, respectively, of the Company's revenue. The revenue earned from the Services Agreement for the years ended December 31, 2023, 2022 and 2021, was $574.3 million, $514.8 million and $661.3 million, respectively, representing 13%, 10% and 18%, respectively, of the Company's total revenue. The related accounts receivable totaled $52.2 million and $74.1 million at December 31, 2023 and 2022, respectively.

The revenue attributable to the Services Agreement is earned by Ask Media Group and the Desktop business, which comprise the Search segment. For the years ended December 31, 2023, 2022 and 2021, revenue earned from the Services Agreement was $501.5 million, $424.3 million and $542.1 million, respectively, within Ask Media Group, and $72.8 million, $90.5 million and $119.1 million, respectively, within the Desktop business.

The Services Agreement requires that the Company comply with certain guidelines promulgated by Google. Google may generally unilaterally update its policies and guidelines without advance notice. These updates may be specific to the Services Agreement or could be more general and thereby impact the Company as well as other companies. These policy and guideline updates have in the past and could in the future require modifications to, or prohibit and/or render obsolete certain of our products, services and/or business practices, which have been and could be costly to address or negatively impact revenue and have had and in the future could have an adverse effect on our financial condition and results of operations. As described below, Google has made changes to the policies under the Services Agreement and has also made industry-wide changes that have negatively impacted the Desktop business-to-consumer (“B2C”) business. Google may make changes in the future that could impact the revenue earned from Google, including under the Services Agreement.

As a result of certain industry-wide policy changes combined with increased enforcement by Google of policies under the Services Agreement in prior periods, the Company discontinued the introduction of new products in 2021. Therefore, the current B2C revenue stream relates solely to the then existing installed base of products. As a result, the revenue and profits of the B2C business have declined significantly and the Company expects that trend to continue.

Credit Risk

The Company has counterparty credit risk exposure to the private limited life insurance company, which issued the annuity contracts held by the IPC Pension Scheme ("IPC Plan"), as well as certain financial institutions that are counterparties to the interest rate swaps. In addition, cash and cash equivalents are maintained with financial institutions and are in excess of any applicable third-party insurance limits, such as the Federal Deposit Insurance Corporation and the Securities Investor Protection Corporation.

Interest Rate Risk

At December 31, 2023, the principal amount of the Company's outstanding debt totals $1.5 billion, which bears interest at a variable rate. In March 2023, the Company entered into interest rate swaps on the Dotdash Meredith Term Loan B for a total notional amount of $350 million. See “Interest Rate Swaps” above for additional information. During the year ended December 31, 2023, adjusted term secured overnight financing rate ("Adjusted Term SOFR") increased an average of approximately 133 basis points relative to December 31, 2022. As a result of the increase in the Adjusted Term SOFR during the year ended December 31, 2023, the interest expense, net of $3.7 million realized gains related to the $350 million in notional amount of interest rate swaps, was $13.1 million higher as compared to what interest expense would have been if the Adjusted Term SOFR had been unchanged during 2023. At December 31, 2023, the outstanding balance of $1.2 billion related to the Dotdash Meredith Term Loan B bore interest at Adjusted SOFR, subject to a minimum of 0.50%, plus 4.00%, or 9.44%, and the outstanding balance of $315.0 million related to the Dotdash Meredith Term Loan A bore interest at Adjusted Term SOFR plus 2.25%, or 7.69%. If Adjusted Term SOFR were to increase or decrease by 100 basis points, the annual interest expense on the Dotdash Meredith Term Loan A and Dotdash Meredith Term Loan B, net of the impact related to the $350 million in notional amount of interest rate swaps, would increase or decrease by $11.9 million.

Other Risks

The Company is subject to certain risks and concentrations including dependence on third-party technology providers and exposure to risks associated with online commerce security.

Capitalized Software, Equipment, Buildings, Land and Leasehold Improvements

Capitalized software, equipment, buildings, land and leasehold improvements are recorded at cost or at fair value to the extent acquired in a business combination. Repairs and maintenance costs are expensed as incurred. Amortization of leasehold improvements, which is included in "Depreciation" in the statement of operations, and depreciation are computed using the straight-line method over the estimated useful lives of the assets, or, in the case of leasehold improvements, the lease term, if shorter.


Asset Category			Estimated Useful Lives
Capitalized software and computer equipment			2 to 3 Years
Furniture and other equipment			3 to 12 Years
Buildings and leasehold improvements			3 to 39 Years

The Company capitalizes certain internal use software costs including external direct costs utilized in developing or obtaining the software and compensation for personnel directly associated with the development of the software. Capitalization of such costs begins when the preliminary project stage is complete and ceases when the project is substantially complete and ready for its intended purpose. The net book value of capitalized internal use software is $109.7 million and $155.7 million at December 31, 2023 and 2022, respectively.

Business Combinations and Contingent Consideration Arrangements

The purchase price of each acquisition is attributed to the assets acquired and liabilities assumed based on their fair values at the date of acquisition, including identifiable intangible assets that either arise from a contractual or legal right or are separable from goodwill. The Company usually obtains the assistance of outside valuation experts to assist in the allocation of purchase price to the identifiable intangible assets acquired. While outside valuation experts may be used, management has ultimate responsibility for the valuation methods, models and inputs used and the resulting purchase price allocation. The excess purchase price over the value of net tangible and identifiable intangible assets acquired is recorded as goodwill and is assigned to the reporting unit(s) that is expected to benefit from the business combination as of the acquisition date. The acquisition of Meredith closed on December 1, 2021 and the allocation of purchase price to the assets acquired and liabilities assumed, the determination of the reporting units and the allocation of goodwill to the reporting units were finalized during the fourth quarter of 2022. See "Note 4—Business Combination" for additional information

In connection with certain business combinations, the Company has entered into contingent consideration arrangements that are determined to be part of the purchase price. Each of these arrangements is initially recorded at its fair value at the time of the acquisition and reflected at current fair value for each subsequent reporting period thereafter until settled. Generally, our contingent consideration arrangements are based upon financial performance and/or operating metric targets. The Company generally determines the fair value of the contingent consideration arrangements by using probability-weighted analyses to determine the amounts of the gross liability, and, if the arrangement is long-term in nature, applying a discount rate that appropriately captures the risk associated with the obligation to determine the net amount reflected in the financial statements. Significant changes in the specified forecasted financial or operating metrics can result in a significantly higher or lower fair value measurement. The changes in the remeasured fair value of the contingent consideration arrangements during each reporting period, including the accretion of the discount, if applicable, are recognized in "General and administrative expense" in the statement of operations. See "Note 3 —Financial Instruments and Fair Value Measurements" for a discussion of contingent consideration arrangements.

Goodwill and Indefinite-Lived Intangible Assets

Dotdash Meredith's operating segments and reporting units are Digital and Print. Angi Inc.'s Ads and Leads, Services and International are separate operating segments and reporting units. Search is an operating segment and a reporting unit. Within Emerging & Other, Mosaic Group, Care.com, Roofing, prior to its sale on November 1, 2023, Vivian Health, The Daily Beast, IAC Films, Newco (an IAC incubator) and Bluecrew, prior to its sale on November 9, 2022, are separate operating segments and reporting units. Goodwill is tested for impairment at the reporting unit level. See "Note 1 0 —Segment Information" for additional information regarding the Company's method of determining operating and reportable segments.

The Company assesses goodwill and indefinite-lived intangible assets, which are certain trade names and trademarks, for impairment annually at October 1 or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit or the fair value of an indefinite-lived intangible asset below its carrying value.

When the Company elects to perform a qualitative assessment and concludes it is not more likely than not that the fair value of the reporting unit is less than its carrying value, no further assessment of that reporting unit's goodwill is necessary; otherwise, a quantitative assessment is performed and the fair value of the reporting unit is determined. If the carrying value of the reporting unit exceeds its estimated fair value, a goodwill impairment equal to the excess is recorded.

During the third quarter of 2023 and second quarter of 2022, the Company reassessed the fair value of the Mosaic Group reporting unit (included within Emerging & Other) and recorded goodwill impairments of $9.0 million and $86.7 million, respectively, as a result of the projected reduction in future revenue and profits from the business and lower trading multiples of a selected peer group of companies.

For the Company's annual goodwill test at October 1, 2023, a qualitative assessment of the Angi Inc. Ads and Leads, Services and International reporting units and the Vivian Health reporting unit goodwill was performed because the Company concluded it was more likely than not that the fair value of these reporting units was in excess of their respective carrying values. The primary factors that the Company considered in its qualitative assessment for each of these reporting units are described below:

•The Company considered the strong forecasted operating performance, in addition to actual operating results in the current year, of the Angi Inc. Ads and Leads and Services reporting units and, based on the Company's latest valuation prepared as of October 1, 2022, the excess of the estimated fair value of each reporting unit compared to their respective carrying values.

•The Company prepared valuations of the Angi Inc. International and Vivian Health reporting units primarily in connection with the issuance and/or settlement of equity awards that are denominated in the equity of these businesses during the year ended December 31, 2023. The valuations were prepared time proximate to, however, not as of, October 1, 2023. The fair value of each of these businesses was in excess of its October 1, 2023 carrying value.

For the Company's annual goodwill test at October 1, 2023, the Company quantitatively tested the Dotdash Meredith Digital, Mosaic Group and Care.com reporting units. The Company's quantitative tests resulted in no impairments. The Company's remaining reporting units, Dotdash Meredith Print, Search, Roofing, The Daily Beast, IAC Films and Newco, have no goodwill as of October 1, 2023.

In the fourth quarter of 2022, a quantitative assessment was performed on the Roofing reporting unit; this test resulted in an impairment of $26.0 million due to Roofing exiting certain markets and a projected reduction in future profits from the business, which reduced its fair value.

The aggregate carrying value of goodwill for which the most recent estimate of the excess of fair value over carrying value is less than 20% is $1.6 billion.

The fair value of the Company's reporting units is determined using both an income approach based on discounted cash flows ("DCF") and a market approach when it tests goodwill for impairment, either on an interim basis or annual basis as of October 1 each year. The Company uses the same approach in determining the fair value of its businesses in connection with its non-public subsidiary denominated stock-based compensation plans, which can be a significant factor in the decision to apply the qualitative assessment rather than a quantitative test. Determining fair value using a DCF analysis requires the exercise of significant judgment with respect to several items, including the amount and timing of expected future cash flows and appropriate discount rates. The expected cash flows used in the DCF analyses are based on the Company's most recent forecast and budget and, for years beyond the budget, the Company's estimates, which are based, in part, on forecasted growth rates. The discount rates used in the DCF analyses are intended to reflect the risks inherent in the expected future cash flows of the respective reporting units. Assumptions used in the DCF analyses, including the discount rate, are assessed based on each reporting unit's current results and forecasted future performance, as well as macroeconomic and industry specific factors. The discount rates used in the quantitative tests for 2023 for determining the fair values of the Company's Dotdash Meredith Digital, Care.com and Mosaic Group reporting units were 15.5%, 16% and 16%, respectively, and were intended to reflect the risks inherent in the expected future cash flows of the respective reporting units. The discount rates used in the quantitative tests for 2022 for determining the fair values of the Company's Mosaic Group and Roofing reporting units were both 16%. Determining fair value using a market approach considers multiples of financial metrics based on both acquisitions and trading multiples of a selected peer group of companies. From the comparable companies, a representative market multiple is determined, which is applied to financial metrics to estimate the fair value of a reporting unit. To determine a peer group of companies for our respective reporting units, we considered companies relevant in terms of consumer use, monetization model, margin and growth characteristics, and brand strength operating in their respective sectors.

While the Company has the option to qualitatively assess whether it is more likely than not that the fair values of its indefinite-lived intangible assets are less than their carrying values, the Company's policy is to determine the fair value of each of its indefinite-lived intangible assets annually as of October 1, in part, because the level of effort required to perform the quantitative and qualitative assessments is essentially equivalent. The Company determines the fair value of indefinite-lived intangible assets using an avoided royalty DCF valuation analysis. Significant judgments inherent in this analysis include the selection of appropriate royalty and discount rates and estimating the amount and timing of expected future cash flows. The discount rates used in the DCF analyses are intended to reflect the risks inherent in the expected future cash flows generated by the respective intangible assets. The royalty rates used in the DCF analyses are based upon an estimate of the royalty rates that a market participant would pay to license the Company's trade names and trademarks. The future cash flows are based on the Company's most recent forecast and budget and, for years beyond the budget, the Company's estimates, which are based, in part, on forecasted growth rates. Assumptions used in the avoided royalty DCF analyses, including the discount rate and royalty rate, are assessed annually based on the actual and projected cash flows related to the asset, as well as macroeconomic and industry specific factors. The discount rates used in the Company's annual indefinite-lived impairment assessment ranged from 15% to 17% in 2023 and 12% to 18.5% in 2022, and the royalty rates used ranged from 2% to 8% in 2023 and 1% to 8% in 2022.

During the third quarter of 2023, the Company determined that a projected reduction in future revenue related to a certain indefinite-lived trade name intangible asset in the Dotdash Meredith Digital segment was an indicator of possible impairment. Following the identification of the indicator, the Company updated its calculation of the fair value of the indefinite-lived intangible asset and recorded an impairment of $7.6 million. The discount rate used to value the trade name was 16% and the royalty rate was 8%. A quantitative assessment of this indefinite-lived trade name intangible was prepared as of October 1, 2023; this test resulted in no additional impairment as its carrying value approximates its fair value.

The October 1, 2023 annual quantitative assessment of indefinite-lived intangible assets identified an impairment of $79.9 million related to certain other indefinite-lived trade name intangible assets in the Dotdash Meredith Digital segment. The discount rate used to value these trade names was 15.5% and the royalty rate was 6%.

If the carrying value of an indefinite-lived intangible asset exceeds its estimated fair value, an impairment equal to the excess is recorded. The aggregate carrying value of indefinite-lived intangible assets for which the excess of fair value over carrying value is less than 20% is $303.7 million.

Impairment charges recorded on indefinite-lived intangible assets are included in “Amortization of intangibles” in the statement of operations.

The October 1, 2023 and 2022 annual assessments of goodwill and indefinite-lived intangible assets did not identify any further impairments. The October 1, 2021 annual assessment of goodwill and indefinite-lived intangible assets did not identify any impairments.

Long-Lived Assets

Long-lived assets, other than goodwill and indefinite-lived intangible assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. The carrying value of a long-lived asset is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset. If the carrying value is deemed not to be recoverable, an impairment loss is recorded equal to the amount by which the carrying value of the long-lived asset exceeds its fair value.

During the first quarter of 2023, Dotdash Meredith recorded impairment charges of $70.0 million related to certain unoccupied leased office space due to the continued decline in the commercial real estate market consisting of impairments of $44.7 million and $25.3 million of an ROU asset and related leasehold improvements, furniture and equipment, respectively.

During the third quarter of 2022, Dotdash Meredith recorded impairment charges of $21.3 million related to the consolidation of certain leased spaces following the Meredith acquisition consisting of impairments of $14.3 million and $7.0 million of an ROU asset and related leasehold improvements, furniture and equipment, respectively. See "Note 11—Dotdash Meredith Restructuring Charges, Transaction-Related Expenses and Change-in-Control Payments" for additional information.

The impairment charges related to ROU assets are included in "General and administrative expense" and the impairment charges related to leasehold improvements, furniture and equipment are included in "Depreciation" in the statement of operations. The impairment charges represent the amount by which the carrying value of the asset group exceeded its estimated fair value, calculated using a DCF approach using sublease market assumptions of the expected cash flows and discount rate. The impairment charges were allocated between the ROU assets and related leasehold improvements, furniture and equipment of the asset group based on their relative carrying values.

Accounting for Investments in Equity Securities

The Company's equity securities, other than those of its consolidated subsidiaries and those accounted for under the equity method, are accounted for at fair value or under the measurement alternative in accordance with ASC Subtopic 321, Investments - Equity Securities, with any changes to fair value recognized in "Other income (expense), net" in the statement of operations each reporting period. Under the measurement alternative, equity investments without readily determinable fair values are carried at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for identical or similar securities of the same issuer; fair value is generally determined based on a market approach as of the transaction date. A security will be considered identical or similar if it has identical or similar rights to the equity securities held by the Company. The Company reviews its investments in equity securities without readily determinable fair values for impairment each reporting period when there are qualitative factors or events that indicate possible impairment. Factors the Company considers in making this determination include negative changes in industry and market conditions, financial performance, business prospects, and other relevant events and factors. When indicators of impairment exist, the Company prepares quantitative assessments of the fair value of its investments in equity securities, which require judgment and the use of estimates. When the Company's assessment indicates that the fair value of the investment is below its carrying value, the Company writes down the investment to its fair value and records the corresponding charge in "Other income (expense), net" in the statement of operations.

During the fourth quarter of 2023, due to MGM Resorts International's ("MGM") ongoing share repurchase program, which increased the Company's ownership interest passively, the Company determined that the equity method of accounting applies and has elected to account for its investment in MGM pursuant to the fair value option.

Fair Value Measurements

The Company categorizes its financial instruments measured at fair value into a fair value hierarchy that prioritizes the inputs used in pricing the asset or liability. The three levels of the fair value hierarchy are:

•Level 1: Observable inputs obtained from independent sources, such as quoted market prices for identical assets and liabilities in active markets.

•Level 2: Other inputs, which are observable directly or indirectly, such as quoted market prices for similar assets or liabilities in active markets, quoted market prices for identical or similar assets or liabilities in markets that are not active and inputs that are derived principally from or corroborated by observable market data. The fair values of the Company’s Level 2 financial assets are primarily obtained from observable market prices for identical underlying securities that may not be actively traded. Certain of these securities may have different market prices from multiple market data sources, in which case an average market price is used.

•Level 3: Unobservable inputs for which there is little or no market data and require the Company to develop its own assumptions, based on the best information available in the circumstances, about the assumptions market participants would use in pricing the assets or liabilities. See "Note 3 —Financial Instruments and Fair Value Measurements" for a discussion of fair value measurements made using Level 3 inputs.

Assets measured at fair value on a nonrecurring basis

The Company's non-financial assets, such as goodwill, intangible assets, ROU assets, capitalized software, equipment, buildings and leasehold improvements are adjusted to fair value only when an impairment is recognized. The Company's financial assets, comprising equity securities without readily determinable fair values, are adjusted to fair value when observable price changes are identified or an impairment is recognized. Such fair value measurements are based predominantly on Level 3 inputs. Refer to "Goodwill and Indefinite-Lived Intangible Assets" and "Long-Lived Assets" above for a description of impairment charges.

Advertising Costs

Advertising costs are expensed in the period incurred (when the advertisement first runs for production costs that are initially capitalized) and represent online marketing, including fees paid to search engines, social media sites and third parties that distribute our B2C downloadable applications, which ceased beginning in March 2021, offline marketing, which is primarily television advertising, partner-related payments to those who direct traffic to the brands within our Angi Inc. segment, and direct-mail costs for magazine subscription acquisition efforts within our Dotdash Meredith segment. Advertising expense is $858.1 million, $1.0 billion and $877.0 million for the years ended December 31, 2023, 2022 and 2021, respectively.

Legal Costs

Legal costs, other than certain costs incurred to obtain financing, are expensed as incurred.

Original Issue Discount, Debt Issuance Costs and Deferred Financing Costs

Costs incurred to obtain financing are deferred and amortized to "Interest expense" in the statement of operations over the related financing period using the effective interest method. The Company records debt issuance costs as a direct reduction of the carrying value of the related debt. Financing costs related to the undrawn revolving credit facility are included in "Other non-current assets" in the balance sheet.

Income Taxes

The Company accounts for income taxes under the liability method, and deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying values of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. A valuation allowance is provided if it is determined that it is more likely than not that the deferred tax asset will not be realized. The Company records interest, net of any applicable related income tax benefit, for uncertain tax positions as a component of income tax expense. The Company elects to recognize the tax on Global Intangible Low-Taxed Income as a period expense in the period the tax is incurred.

The Company evaluates and accounts for uncertain tax positions using a two-step approach. Recognition (step one) occurs when the Company concludes that a tax position, based solely on its technical merits, is more likely than not to be sustainable upon examination. Measurement (step two) determines the amount of benefit that is greater than 50% likely to be realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information. De-recognition of a tax position that was previously recognized would occur when the Company subsequently determines that a tax position no longer meets the more-likely-than-not threshold of being sustained.

Pensions and Postretirement Benefits

In connection with the acquisition of Meredith, the Company assumed the obligations under its pension plans. Pension benefits for the domestic plans are generally based on formulas that reflect pay credits allocated to participants’ accounts based on years of benefit service and annual pensionable earnings. The domestic plans are frozen with respect to new participants and the qualified plan was terminated effective December 31, 2022, and therefore, has no service costs. There are no active participants in the international plans so there are no service costs.

The Company utilizes a mark-to-market approach to account for pension and postretirement benefits. Under this approach, the Company recognizes changes in the fair value of plan assets and actuarial gains or losses in the fourth quarter of each fiscal year or whenever a plan is required to be remeasured. Events requiring a plan remeasurement are recognized in the quarter in which the remeasurement event occurs. The remaining components of pension and other postretirement plan net periodic benefit cost (credit) are recorded on a quarterly basis.

The discount rates utilized for the domestic plans and unqualified (unfunded) United Kingdom ("U.K.") plan were based on the investment yields of high-quality corporate bonds available in the marketplace with maturities equal to projected cash flows of future benefit payments as of the measurement date. The discount rate for the IPC Plan is an effective insurance settlement rate, using the estimated discount rates inherent in the annuity contracts at each measurement date. The annuity contracts are further described in "Note 13—Pension and Postretirement Benefit Plans."

The Company does not expect future contributions to be made into these plans as a result of the annuity contract entered into with a private limited life insurance company related to the IPC Plan and the determination to freeze and terminate the qualified domestic pension plan. The Company's non-qualified plans are funded as payments, which can include the purchase of annuity contracts, are made. In addition, the Company provides health care and life insurance benefits for certain employees upon their retirement, the expected costs of which are accrued over the periods that the employees render services and are funded as claims are paid. See "Note 13—Pension and Postretirement Benefit Plans" for additional information.

Earnings Per Share

Basic net earnings (loss) per share ("EPS") is computed by dividing net earnings (loss) attributable to holders of IAC common stock and Class B common stock by the weighted-average number of shares of common stock and Class B common stock outstanding during the period. Diluted earnings per share reflects the potential dilution that could occur if stock options and other commitments to issue common stock were exercised or equity awards vested resulting in the issuance of common stock that could share in the earnings of the Company. Undistributed earnings allocated to the participating security is subtracted from earnings in determining earnings attributable to holders of IAC common stock and Class B common stock for EPS. See "Note 15—Earnings (Loss) Per Share" for additional information on dilutive securities.

Foreign Currency Translation and Transaction Gains and Losses

The financial position and operating results of foreign entities whose primary economic environment is based on their local currency are consolidated using the local currency as the functional currency. These local currency assets and liabilities are translated at the rates of exchange as of the balance sheet date, and local currency revenue and expenses of these operations are translated at average rates of exchange during the period. Translation gains and losses are included in "Accumulated other comprehensive (loss) income" as a component of shareholders' equity. Transaction gains and losses resulting from assets and liabilities denominated in a currency other than the functional currency are included in the statement of operations as a component of "Other income (expense), net." See "Note 1 6 —Financial Statement Details" for additional information regarding foreign currency exchange gains and losses.

Translation gains and losses relating to foreign entities that are liquidated or substantially liquidated are reclassified out of accumulated other comprehensive (loss) income into earnings. During the years ended December 31, 2022 and 2021, losses of less than $0.1 million and $10.0 million, respectively, were reclassified into earnings and included in "Other income (expense), net" in the statement of operations. During the year ended December 31, 2023, no gains or losses were reclassified into earnings.

Stock-Based Compensation

Stock-based compensation is measured at the grant date based on the fair value of the award and is generally expensed over the requisite service period. See "Note 12—Stock-Based Compensation" for a discussion of the Company's stock-based compensation plans.

Redeemable Noncontrolling Interests

Noncontrolling interests in the subsidiaries of the Company are ordinarily reported on the balance sheet within shareholders' equity, separately from the Company's equity. However, securities that are redeemable at the option of the holder and not solely within the control of the issuer must be classified outside of shareholders' equity. Accordingly, all noncontrolling interests that are redeemable at the option of the holder are presented outside of shareholders' equity in the balance sheet.

In connection with the acquisition of certain subsidiaries, management of these businesses has retained an ownership interest. The Company is party to fair value put and call arrangements with respect to these interests. These put and call arrangements allow management of these businesses to require the Company to purchase their interests or allow the Company to acquire such interests at fair value, respectively. The put arrangements do not meet the definition of a derivative instrument as the put agreements do not provide for net settlement. These put and call arrangements become exercisable by the Company and the counterparty at various dates in the future. There were no arrangements exercised during the years ended December 31, 2023 and 2022. Two of these arrangements were exercised during the year ended December 31, 2021. These put arrangements are exercisable by the counterparty outside the control of the Company. Accordingly, to the extent that the redemption amount of these interests exceeds the value determined by normal noncontrolling interest accounting, the value of such interests is adjusted to the redemption amount with a corresponding adjustment to additional paid-in capital. During the years ended December 31, 2023, 2022 and 2021, the Company recorded adjustments of $7.6 million, $24.2 million and $777.7 million, respectively (of which $777.3 million was related to Vimeo during 2021), to increase these interests to their redemption amounts. Adjustments to these interests require high levels of judgment and are based on various valuation techniques, including market comparables and discounted cash flow projections.

Recent Accounting Pronouncements

Recent Accounting Pronouncements Adopted by the Company

There were no recently issued accounting pronouncements adopted by the Company during the year ended December 31, 2023.

Recent Accounting Pronouncements Not Yet Adopted by the Company

ASU 2023-07—Segment Reporting (Topic 280)—Improvements to Reportable Segment Disclosures

In November 2023, the FASB issued Accounting Standards Update ("ASU") No. 2023-07, which is intended to provide users of financial statements with more decision-useful information about reportable segments of a public business entity, primarily through enhanced disclosures of significant segment expenses. This ASU requires annual and interim disclosures of significant expenses that are regularly provided to the chief operating decision maker ("CODM") and included within each reported measure of segment profit or loss and an amount and description of its composition of other segment items. The provisions of this ASU also require entities to include all annual disclosures required by Topic 280 in the interim periods and permits entities to include multiple measures of a segment's profit or loss if such measures are used by the CODM to assess segment performance and determine allocation of resources, provided that at least one of those measures is determined in a way that is consistent with the measurement principles under GAAP. The amendments in ASU 2023-07 apply retrospectively and is effective for fiscal years beginning after December 15, 2023 and interim periods after December 15, 2024. Early adoption is permitted. The Company does not plan to early adopt and is currently assessing the impact of adopting the updated guidance on the financial statements.

ASU 2023-09—Income Taxes (Topic 740)—Improvements to Income Tax Disclosures

In December 2023, the FASB issued ASU No. 2023-09, which establishes required categories and a quantitative threshold to the annual tabular rate reconciliation disclosure and disaggregated jurisdictional disclosures of income taxes paid. The guidance's annual requirements are effective for the Company beginning with the December 31, 2025 reporting period. Early adoption is permitted and prospective disclosure should be applied, however, retrospective disclosure is permitted. The Company is currently assessing the pronouncement and its impact on its income tax disclosures, but it does not impact the Company's results of operations, financial condition or cash flows.

Reclassifications

Certain prior year amounts have been reclassified to conform to the current year presentation.

PENSION AND POSTRETIREMENT BENEFIT PLANS - Narrative (Details) £ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2023 GBP (£)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Defined Benefit Plan and Defined Contribution Plan Disclosures
Actuarial gain (loss) recognition	$ 1,700,000		$ (213,400,000)	$ (7,100,000)
IPC Plan
Defined Benefit Plan and Defined Contribution Plan Disclosures
Employer contributions \| £		£ 5.6
IAC Retirement Savings Plan
Defined Benefit Plan and Defined Contribution Plan Disclosures
Employee contribution limit per calendar year (up to) (as a percent of pre-tax earnings)	50.00%	50.00%
Employer contribution per dollar employee contributes up to contribution limit	100.00%	100.00%
Employer contribution limit per calendar year (as a percent of compensation)	10.00%	10.00%
IAC Retirement Savings Plan \| Angi Inc.
Defined Benefit Plan and Defined Contribution Plan Disclosures
Employer contribution per dollar employee contributes up to contribution limit	50.00%	50.00%
Employer contribution limit per calendar year (as a percent of compensation)	3.00%	3.00%
Meredith Savings and investment Plan
Defined Benefit Plan and Defined Contribution Plan Disclosures
Employer contribution per dollar employee contributes up to contribution limit	100.00%	100.00%
Employer contribution limit per calendar year (as a percent of compensation)	5.00%	5.00%
Defined contribution plan contributions			10,400,000	800,000
Meredith Savings and investment Plan \| Eligible Employees \| First Contribution
Defined Benefit Plan and Defined Contribution Plan Disclosures
Employer contribution per dollar employee contributes up to contribution limit	100.00%	100.00%
Employer contribution limit per calendar year (as a percent of compensation)	4.00%	4.00%
Meredith Savings and investment Plan \| Eligible Employees \| Second Contribution
Defined Benefit Plan and Defined Contribution Plan Disclosures
Employer contribution per dollar employee contributes up to contribution limit	50.00%	50.00%
Employer contribution limit per calendar year (as a percent of compensation)	1.00%	1.00%
Meredith Savings and investment Plan \| Ineligible Employees
Defined Benefit Plan and Defined Contribution Plan Disclosures
Employer contribution per dollar employee contributes up to contribution limit	100.00%	100.00%
Employer contribution limit per calendar year (as a percent of compensation)	5.00%	5.00%
United States
Defined Benefit Plan and Defined Contribution Plan Disclosures
Defined benefit plan, accumulated benefit obligation	$ 56,100,000		72,500,000
United States \| IAC Retirement Savings Plan
Defined Benefit Plan and Defined Contribution Plan Disclosures
Employer contribution limit per calendar year, amount	10,000
Defined contribution plan contributions	36,100,000		25,600,000	22,000,000
United States \| Pension
Defined Benefit Plan and Defined Contribution Plan Disclosures
Actuarial gain (loss) recognition	932,000		(8,154,000)	2,480,000
Settlements	0		(96,100,000)
Employer contributions	612,000		44,221,000
United States \| Post-Retirement
Defined Benefit Plan and Defined Contribution Plan Disclosures
Actuarial gain (loss) recognition	496,000		3,717,000	132,000
Settlements	0		(3,037,000)
Employer contributions	0		0
International
Defined Benefit Plan and Defined Contribution Plan Disclosures
Defined benefit plan, accumulated benefit obligation	488,300,000		467,800,000
International \| IAC Retirement Savings Plan
Defined Benefit Plan and Defined Contribution Plan Disclosures
Defined contribution plan contributions	1,400,000		1,100,000	900,000
International \| Pension
Defined Benefit Plan and Defined Contribution Plan Disclosures
Actuarial gain (loss) recognition	225,000		(208,957,000)	$ (9,724,000)
Settlements	0		(34,374,000)
Employer contributions	$ 163,000		$ 122,000

STOCK-BASED COMPENSATION - Unvested RSUs (Details) - Restricted Stock Units (RSUs) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number of Shares
Balance at beginning of the period (in shares)	1,458
Granted (in shares)	499
Vested (in shares)	(88)
Forfeited (in shares)	(47)
Balance at end of the period (in shares)	1,822	1,458
Weighted Average Grant Date Fair Value
Balance at beginning of the period (USD per share)	$ 93.29
Granted (USD per share)	53.41	$ 114.27	$ 171.53
Vested (USD per share)	94.72
Forfeited (USD per share)	94.55
Balance at end of the period (USD per share)	$ 82.28	$ 93.29

CONTINGENCIES	12 Months Ended
CONTINGENCIES	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
CONTINGENCIES	CONTINGENCIES In the ordinary course of business, the Company is a party to various lawsuits. The Company establishes accruals for specific legal matters when it determines that the likelihood of an unfavorable outcome is probable and the loss is reasonably estimable. Management has also identified certain other legal matters where it believes an unfavorable outcome is not probable and, therefore, no accrual is established. Although management currently believes that resolving claims against the Company, including claims where an unfavorable outcome is reasonably possible and for which the Company cannot estimate a loss or range of loss, will not have a material impact on the liquidity, results of operations, or financial condition of the Company, these matters are subject to inherent uncertainties and management's view of these matters may change in the future. The Company also evaluates other contingent matters, including uncertain income tax positions and non-income tax contingencies, to assess the likelihood of an unfavorable outcome and estimated extent of potential loss. It is possible that an unfavorable outcome of one or more of these lawsuits or other contingencies could have a material impact on the liquidity, results of operations, or financial condition of the Company. See "Note 14—Income Taxes" for information related to uncertain income tax positions.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Basis of Presentation

The Company prepares its consolidated financial statements (referred to herein as "financial statements") in accordance with U.S. generally accepted accounting principles ("GAAP").

Accounting Estimates

Interest Rate Swaps

General Revenue Recognition

The Company's disaggregated revenue disclosures are presented in "Note 1 0 —Segment Information."

Transaction Price

Arrangements with Multiple Performance Obligations

Practical Expedients and Exemptions

The Company also applies the practical expedient for sales commissions where the anticipated customer relationship period is one year or less as noted below.

Costs to Obtain a Contract with a Customer

Commissions Paid to Employees Pursuant to Sales Incentive Programs

App Store Fees

The following table presents the capitalized costs to obtain a contract with a customer for the years ended December 31, 2023 and 2022:


	Years Ended December 31,
	2023				2022
	Sales Commissions		App Store Fees		Total		Sales Commissions		App Store Fees		Total
	(In thousands)
Current	$	36,589	$	7,835	$	44,424	$	39,590	$	8,266	$	47,856
Non-current	6,058		—		6,058		5,667		—		5,667
Total	$	42,647	$	7,835	$	50,482	$	45,257	$	8,266	$	53,523

The current and non-current capitalized costs to obtain a contract with a customer are included in "Other current assets" and "Other non-current assets," respectively, in the balance sheet.

Commissions Paid to Third-Party Agent Sales of Magazine Subscriptions

Dotdash Meredith

Digital

Advertising

Performance Marketing

Licensing and Other Revenue

Subscription Revenue

Advertising

Project and Other Revenue

Newsstand Revenue

Performance Marketing

Angi Inc.

Ads and Leads Revenue

Services Revenue

International Revenue

International revenue primarily comprises consumer connection revenue for consumer matches and membership subscription revenue from service professionals and consumers.

Emerging & Other

Revenue of IAC Films is generated primarily through media production and distribution. Production revenue is recognized when control is transferred to the customer to broadcast or exhibit.

Accounts Receivable, Net of the Allowance for Credit Losses

Deferred Revenue

Cash and Cash Equivalents

Accounting for Investments in Debt Securities

Certain Risks and Concentrations—Services Agreement with Google (the "Services Agreement")

Services Agreement with Google (the "Services Agreement")

Credit Risk

Interest Rate Risk

Other Risks

The Company is subject to certain risks and concentrations including dependence on third-party technology providers and exposure to risks associated with online commerce security.

Capitalized Software, Equipment, Buildings, Land and Leasehold Improvements


Asset Category			Estimated Useful Lives
Capitalized software and computer equipment			2 to 3 Years
Furniture and other equipment			3 to 12 Years
Buildings and leasehold improvements			3 to 39 Years

Business Combinations and Contingent Consideration Arrangements

Goodwill and Indefinite-Lived Intangible Assets

The aggregate carrying value of goodwill for which the most recent estimate of the excess of fair value over carrying value is less than 20% is $1.6 billion.

Impairment charges recorded on indefinite-lived intangible assets are included in “Amortization of intangibles” in the statement of operations.

Long-Lived Assets

Accounting for Investments in Equity Securities

Fair Value Measurements

•Level 1: Observable inputs obtained from independent sources, such as quoted market prices for identical assets and liabilities in active markets.

Assets measured at fair value on a nonrecurring basis

Advertising Costs

Legal Costs

Legal costs, other than certain costs incurred to obtain financing, are expensed as incurred.

Original Issue Discount, Debt Issuance Costs and Deferred Financing Costs

Income Taxes

Pensions and Postretirement Benefits Other Than Pensions

Pensions and Postretirement Benefits

Earnings Per Share

Foreign Currency Translation and Transaction Gains and Losses

Translation gains and losses relating to foreign entities that are liquidated or substantially liquidated are reclassified out of accumulated other comprehensive (loss) income into earnings.

Stock-Based Compensation

Stock-based compensation is measured at the grant date based on the fair value of the award and is generally expensed over the requisite service period.

Redeemable Noncontrolling Interests

Recent Accounting Pronouncements

Recent Accounting Pronouncements Adopted by the Company

There were no recently issued accounting pronouncements adopted by the Company during the year ended December 31, 2023.

Recent Accounting Pronouncements Not Yet Adopted by the Company

ASU 2023-07—Segment Reporting (Topic 280)—Improvements to Reportable Segment Disclosures

ASU 2023-09—Income Taxes (Topic 740)—Improvements to Income Tax Disclosures

Reclassifications

Certain prior year amounts have been reclassified to conform to the current year presentation.

FINANCIAL STATEMENT DETAILS - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total gross carrying amount	$ 829,537	$ 785,087
Accumulated depreciation and amortization	(374,256)	(274,473)
Capitalized software, equipment, buildings, land and leasehold improvements, net	455,281	510,614
Capitalized software and computer equipment
Property, Plant and Equipment [Line Items]
Total gross carrying amount	329,312	291,600
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Total gross carrying amount	268,840	305,304
Furniture and other equipment
Property, Plant and Equipment [Line Items]
Total gross carrying amount	131,442	137,570
Land
Property, Plant and Equipment [Line Items]
Total gross carrying amount	86,032	20,234
Projects in progress
Property, Plant and Equipment [Line Items]
Total gross carrying amount	$ 13,911	$ 30,379

STOCK-BASED COMPENSATION - Changes in Outstanding Stock Options (Details) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares
Shares
Balance at beginning of period (in shares) \| shares	2,822
Granted (in shares) \| shares	0
Exercised (in shares) \| shares	(252)
Forfeited (in shares) \| shares	0
Expired (in shares) \| shares	0
Balance at end of period (in shares) \| shares	2,570
Weighted Average Exercise Price
Balance at beginning of period (USD per share) \| $ / shares	$ 14.05
Granted (USD per share) \| $ / shares	0
Exercised (USD per share) \| $ / shares	(12.23)
Forfeited (USD per share) \| $ / shares	0
Expired (USD per share) \| $ / shares	0
Balance at end of period (USD per share) \| $ / shares	$ 14.23
Options Additional Disclosures
Remaining term at end of period	1 year 10 months 24 days
Options outstanding, aggregate intrinsic value \| $	$ 98,053
Options exercisable (in shares) \| shares	2,570
Options exercisable (USD per share) \| $ / shares	$ 14.23
Term of options exercisable	1 year 10 months 24 days
Options exercisable, aggregate intrinsic value \| $	$ 98,053

PENSION AND POSTRETIREMENT BENEFIT PLANS - Expected Future Benefit Payment (Details) $ in Thousands	Dec. 31, 2023 USD ($)
United States \| Pension
Defined Benefit Plan Disclosure [Line Items]
2024	$ 54,578
2025	688
2026	386
2027	401
2028	619
Thereafter	2,314
Net amount recognized, end of year	58,986
United States \| Post-Retirement
Defined Benefit Plan Disclosure [Line Items]
2024	444
2025	415
2026	389
2027	372
2028	360
Thereafter	1,575
Net amount recognized, end of year	3,555
International \| Pension
Defined Benefit Plan Disclosure [Line Items]
2024	15,981
2025	16,785
2026	17,619
2027	18,548
2028	19,429
Thereafter	111,180
Net amount recognized, end of year	$ 199,542

GOODWILL AND INTANGIBLE ASSETS - Intangible Assets with Definite Lives (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Intangible assets with definite lives
Gross Carrying Amount	$ 967,122	$ 1,121,007
Accumulated Amortization	(636,645)	(582,063)
Total	$ 330,477	$ 538,944
Weighted-Average Useful Life	5 years 1 month 6 days	4 years 8 months 12 days
Advertiser relationships
Intangible assets with definite lives
Gross Carrying Amount	$ 297,000	$ 297,000
Accumulated Amortization	(154,819)	(87,199)
Total	$ 142,181	$ 209,801
Weighted-Average Useful Life	5 years	5 years
Technology
Intangible assets with definite lives
Gross Carrying Amount	$ 198,344	$ 198,224
Accumulated Amortization	(196,816)	(171,660)
Total	$ 1,528	$ 26,564
Weighted-Average Useful Life	3 years 6 months	3 years 6 months
Licensee relationships
Intangible assets with definite lives
Gross Carrying Amount	$ 171,000	$ 171,000
Accumulated Amortization	(85,496)	(45,152)
Total	$ 85,504	$ 125,848
Weighted-Average Useful Life	4 years 10 months 24 days	4 years 10 months 24 days
Trade names
Intangible assets with definite lives
Gross Carrying Amount	$ 120,759	$ 120,711
Accumulated Amortization	(55,541)	(37,677)
Total	$ 65,218	$ 83,034
Weighted-Average Useful Life	9 years 2 months 12 days	9 years 2 months 12 days
Content
Intangible assets with definite lives
Gross Carrying Amount	$ 104,939	$ 106,639
Accumulated Amortization	(88,845)	(61,407)
Total	$ 16,094	$ 45,232
Weighted-Average Useful Life	2 years 10 months 24 days	2 years 10 months 24 days
Customer lists and user base
Intangible assets with definite lives
Gross Carrying Amount	$ 68,661	$ 68,575
Accumulated Amortization	(48,721)	(41,868)
Total	$ 19,940	$ 26,707
Weighted-Average Useful Life	6 years 4 months 24 days	6 years 4 months 24 days
Service professional relationships
Intangible assets with definite lives
Gross Carrying Amount	$ 6,419	$ 97,658
Accumulated Amortization	(6,407)	(97,537)
Total	$ 12	$ 121
Weighted-Average Useful Life	2 years 8 months 12 days	3 years
Subscriber relationships
Intangible assets with definite lives
Gross Carrying Amount		$ 61,200
Accumulated Amortization		(39,563)
Total		$ 21,637
Weighted-Average Useful Life		1 year 10 months 24 days

SEGMENT INFORMATION - Operating Income (Loss) and Adjusted EBITDA (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Sep. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Operating (Loss) Income			$ (260,763)	$ (474,771)	$ (137,067)
Adjusted EBITDA			336,484	199,550	107,266
Impairment charges				21,300
Charges incurred			79,713	80,200
Non-cash lease expense (including right-of-use asset impairments)			48,900	2,300	10,500
Meredith Corporation
Segment Reporting Information [Line Items]
Impairment charges	$ 70,000	$ 21,300
Non-cash lease expense (including right-of-use asset impairments)	$ 44,700	$ 14,300	44,700	14,300
Digital
Segment Reporting Information [Line Items]
Charges incurred			38,769
Print
Segment Reporting Information [Line Items]
Charges incurred			33,412
Other
Segment Reporting Information [Line Items]
Charges incurred			7,532
Transaction-related costs				7,100	30,200
Operating Segments \| Dotdash Meredith
Segment Reporting Information [Line Items]
Operating (Loss) Income			(150,738)	(188,091)	7,176
Adjusted EBITDA			222,757	152,149	33,622
Operating Segments \| Dotdash Meredith \| Meredith Corporation
Segment Reporting Information [Line Items]
Impairment charges			70,000
Impairment of leasehold improvements and furniture and equipment			4,200
Non-cash lease expense (including right-of-use asset impairments)			44,700
Operating Segments \| Dotdash Meredith \| Meredith Corporation \| Depreciation, Nonproductive
Segment Reporting Information [Line Items]
Impairment charges			29,600
Operating Segments \| Dotdash Meredith \| Digital
Segment Reporting Information [Line Items]
Operating (Loss) Income			(16,656)	(66,629)	73,980
Adjusted EBITDA			242,969	186,696	91,179
Restructuring charges and impairment				39,200
Charges incurred				32,200
Operating Segments \| Dotdash Meredith \| Digital \| Depreciation, Nonproductive
Segment Reporting Information [Line Items]
Impairment charges				7,000
Operating Segments \| Dotdash Meredith \| Digital \| Meredith Corporation
Segment Reporting Information [Line Items]
Transaction-related costs				1,100	25,200
Operating Segments \| Dotdash Meredith \| Print
Segment Reporting Information [Line Items]
Operating (Loss) Income			(3,500)	(54,448)	(6,527)
Adjusted EBITDA			64,226	31,135	2,639
Charges incurred				33,400
Operating Segments \| Dotdash Meredith \| Print \| Meredith Corporation
Segment Reporting Information [Line Items]
Transaction-related costs				1,400
Operating Segments \| Dotdash Meredith \| Other
Segment Reporting Information [Line Items]
Operating (Loss) Income			(130,582)	(67,014)	(60,277)
Adjusted EBITDA			(84,438)	(65,682)	(60,196)
Charges incurred				7,600
Transaction-related costs				4,700	53,300
Operating Segments \| Angi Inc.
Segment Reporting Information [Line Items]
Operating (Loss) Income			(26,498)	(75,620)	(67,917)
Adjusted EBITDA			118,478	66,479	35,376
Operating Segments \| Angi Inc. \| Other
Segment Reporting Information [Line Items]
Operating (Loss) Income			(61,377)	(61,794)	(56,196)
Adjusted EBITDA			(50,076)	(49,866)	(46,066)
Operating Segments \| Angi Inc. \| Ads and Leads
Segment Reporting Information [Line Items]
Operating (Loss) Income			50,043	85,593	65,485
Adjusted EBITDA			147,357	168,952	136,260
Operating Segments \| Angi Inc. \| Services
Segment Reporting Information [Line Items]
Operating (Loss) Income			(23,450)	(95,166)	(63,984)
Adjusted EBITDA			8,123	(52,126)	(48,203)
Operating Segments \| Angi Inc. \| International
Segment Reporting Information [Line Items]
Operating (Loss) Income			8,286	(4,253)	(13,222)
Adjusted EBITDA			13,074	(481)	(6,615)
Operating Segments \| Search
Segment Reporting Information [Line Items]
Operating (Loss) Income			44,198	83,398	108,334
Adjusted EBITDA			44,283	83,486	108,381
Operating Segments \| Emerging & Other
Segment Reporting Information [Line Items]
Operating (Loss) Income			18,763	(156,839)	(31,334)
Adjusted EBITDA			41,839	(23,043)	25,872
Corporate
Segment Reporting Information [Line Items]
Operating (Loss) Income			(146,488)	(137,619)	(153,326)
Adjusted EBITDA			$ (90,873)	$ (79,521)	$ (95,985)

STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Unvested RSUs Activity

Unvested RSUs outstanding at December 31, 2023 and changes during the period ended December 31, 2023 are as follows:


	RSUs
	Number of Shares	Weighted Average Grant Date Fair Value
	(Shares in thousands)
Unvested at January 1	1,458	$	93.29
Granted	499	53.41
Vested	(88)	94.72
Forfeited	(47)	94.55





Unvested at December 31	1,822	$	82.28

Schedule of Stock Options Outstanding

Stock options outstanding at December 31, 2023 and changes during the period ended December 31, 2023 are as follows:


	December 31, 2023
	Shares	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years	Aggregate Intrinsic Value
	(Shares and intrinsic value in thousands)
Options Outstanding at January 1	2,822	$	14.05
Granted	—	—
Exercised	(252)	(12.23)
Forfeited	—	—
Expired	—	—






Options Outstanding at December 31	2,570	$	14.23	1.9	$	98,053
Options exercisable	2,570	$	14.23	1.9	$	98,053

Schedule of Information for Stock Options Outstanding and Exercisable

The following table summarizes the information about stock options outstanding and exercisable at December 31, 2023:


	Options Outstanding				Options Exercisable
Range of Exercise Prices	Outstanding at December 31, 2023	Weighted- Average Remaining Contractual Life in Years	Weighted- Average Exercise Price		Exercisable at December 31, 2023	Weighted- Average Remaining Contractual Life in Years	Weighted- Average Exercise Price
	(Shares in thousands)
Less than $10.00	426	2.2	$	8.61	426	2.2	$	8.61
$10.01 to $15.00	666	1.2	13.66		666	1.2	13.66
$15.01 to $20.00	1,474	2.0	16.09		1,474	2.0	16.09
Greater than $20.01	4	3.6	21.17		4	3.6	21.17





	2,570	1.9	$	14.23	2,570	1.9	$	14.23

INCOME TAXES - Income Tax Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns
Balance at beginning of the period	$ 16,013	$ 17,449	$ 18,233
Additions for tax positions related to the current year	5,187	5,557	2,855
Settlements	(2,505)	(7,100)	(1,427)
Additions for tax positions of prior years	1,008	1,715	3,420
Reductions for tax positions of prior years	(701)	(1,608)	(1,116)
Expiration of applicable statutes of limitations	0	0	(4,516)
Balance at end of the period	$ 19,002	$ 16,013	$ 17,449

SHAREHOLDERS' EQUITY	12 Months Ended
SHAREHOLDERS' EQUITY	Dec. 31, 2023
Stockholders' Equity Note [Abstract]
SHAREHOLDERS' EQUITY	SHAREHOLDERS' EQUITY Description of Common Stock and Class B Convertible Common Stock Except as described herein, shares of IAC common stock and IAC Class B common stock are identical. The holders of shares of IAC common stock and IAC Class B common stock vote together as a single class with respect to matters that may be submitted to a vote or for the consent of IAC's shareholders generally, including the election of directors. In connection with any such vote, each holder of IAC common stock is entitled to one vote for each share of IAC common stock held and each holder of IAC Class B common stock is entitled to ten votes for each share of IAC Class B common stock held. Notwithstanding the foregoing, the holders of shares of IAC common stock, acting as a single class, are entitled to elect 25% of the total number of IAC's directors, and, in the event that 25% of the total number of directors shall result in a fraction of a director, then the holders of shares of IAC common stock, acting as a single class, are entitled to elect the next higher whole number of IAC's directors. In addition, Delaware law requires that certain matters be approved by the holders of shares of IAC common stock or holders of IAC Class B common stock voting as a separate class. Shares of IAC Class B common stock are convertible into shares of IAC common stock at the option of the holder thereof, at any time, on a share-for-share basis. Such conversion ratio will in all events be equitably preserved in the event of any recapitalization of IAC by means of a stock dividend on, or a stock split or combination of, outstanding shares of IAC common stock or IAC Class B common stock, or in the event of any merger, consolidation or other reorganization of IAC with another corporation. Upon the conversion of shares of IAC Class B common stock into shares of IAC common stock, those shares of IAC Class B common stock will be retired and will not be subject to reissue. Shares of IAC common stock are not convertible into shares of IAC Class B common stock. The holders of shares of IAC common stock and the holders of shares of IAC Class B common stock are entitled to receive, share for share, such dividends as may be declared by IAC's Board of Directors out of funds legally available therefor. In the event of a liquidation, dissolution, distribution of assets or winding-up of IAC, the holders of shares of IAC common stock and the holders of shares of IAC Class B common stock are entitled to receive, share for share, all the assets of IAC available for distribution to its stockholders, after the rights of the holders of any IAC preferred stock have been satisfied. Equity Transactions related to the Spin-Off In connection with the Spin-Off, IAC amended its certificate of incorporation to provide for the following: •the reclassification of each share of IAC par value $0.001 common stock into (i) one share of IAC par value $0.0001 common stock and (ii) 1/100th of a share of IAC par value $0.01 Series 1 mandatorily exchangeable preferred stock that was automatically exchanged for 1.6235 shares of Vimeo common stock and then immediately retired; and •the reclassification of each share of IAC par value $0.001 Class B common stock into (i) one share of IAC par value $0.0001 Class B common stock and (ii) 1/100th of a share of IAC par value $0.01 Series 2 mandatorily exchangeable preferred stock that was automatically exchanged for 1.6235 shares of Vimeo Class B common stock and then immediately retired. Common Stock Repurchases On June 30, 2020, the Board of Directors of the Company authorized repurchases up to 8.0 million shares of common stock. During the years ended December 31, 2023 and 2022, IAC repurchased 3.2 million and 1.1 million shares of its common stock, on a trade date basis, at an average price of $51.00 and $77.44 per share, or $165.6 million and $85.3 million in aggregate, respectively. The Company did not repurchase any of its common stock during the year ended December 31, 2021. At December 31, 2023, the Company has 3.7 million shares remaining in its share repurchase authorization.

- Definition

The entire disclosure for equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

PENSION AND POSTRETIREMENT BENEFIT PLANS - Weighted Average Assumptions Used (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost
Cash balance interest credit rate	2.39%	3.65%	2.04%
United States \| Pension
Weighted Average Assumptions Used in Calculating Benefit Obligation
Discount rate	5.19%	5.41%
Rate of compensation increase	2.90%	2.99%
Cash balance interest credit rate	2.39%	2.39%
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost
Discount rate	5.48%	3.28%	2.02%
Expected return on plan assets	4.48%	2.80%	6.00%
Rate of compensation increase	2.99%	2.95%	2.90%
United States \| Post-Retirement
Weighted Average Assumptions Used in Calculating Benefit Obligation
Discount rate	5.11%	5.46%
Rate of compensation increase	3.50%	3.50%
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost
Discount rate	5.46%	2.61%	2.52%
Rate of compensation increase	3.50%	3.50%	3.50%
Assumed healthcare cost trend rate
Initial level	6.00%	6.25%	6.50%
Ultimate level	5.00%	5.00%	5.00%
Years to ultimate level	4 years	5 years	6 years
International \| Pension
Weighted Average Assumptions Used in Calculating Benefit Obligation
Discount rate	4.06%	4.13%
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost
Discount rate	4.13%	1.67%	1.40%
Expected return on plan assets	4.12%	1.90%	1.90%

LONG-TERM DEBT - Debt Instrument Redemption (Details) - Senior Notes - ANGI 3.875% Senior Notes	Aug. 20, 2020
2023
Debt Instrument [Line Items]
Redemption rate (as a percent)	101.938%
2024
Debt Instrument [Line Items]
Redemption rate (as a percent)	100.969%
2025 and thereafter
Debt Instrument [Line Items]
Redemption rate (as a percent)	100.00%

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

DOTDASH MEREDITH RESTRUCTURING CHARGES, TRANSACTION-RELATED EXPENSES AND CHANGE-IN-CONTROL PAYMENTS (Tables)

12 Months Ended

Dec. 31, 2023

Restructuring and Related Activities [Abstract]

Schedule of Restructuring and Remaining Costs

A summary of the costs incurred, payments and related accruals is presented below. As of December 31, 2023, there are no expected remaining costs associated with the 2022 restructuring events.


			Year Ended December 31, 2023
	Accrued December 31, 2022		Charges Incurred		Reversal of Initial Cost		Payments		Accrued December 31, 2023		Cumulative Charges Incurred
	(In thousands)
Digital	$	10,950	$	1,371	$	(1,827)	$	(10,021)	$	473	$	38,769
Print	12,055		1,625		(1,645)		(10,916)		1,119		33,412
Other(a)	4,389		678		(727)		(4,042)		298		7,532
Total	$	27,394	$	3,674	$	(4,199)	$	(24,979)	$	1,890	$	79,713

_____________________

(a) Other comprises unallocated corporate expenses, which are corporate overhead expenses not attributable to the Digital or Print segments.


	Year Ended December 31, 2022
	Charges Incurred		Payments		Non-cash(b)		Accrued December 31, 2022
	(In thousands)
Digital	$	39,225	$	(6,966)	$	(21,309)	$	10,950
Print	33,432		(20,952)		(425)		12,055
Other(a)	7,581		(3,192)		—		4,389
Total	$	80,238	$	(31,110)	$	(21,734)	$	27,394

_____________________

(b) Includes $21.3 million of impairment charges, consisting of impairments of $14.3 million and $7.0 million of an ROU asset and related leasehold improvements and furniture and equipment included in "General and administrative expense" and "Depreciation" in the statement of operations, respectively, and $0.4 million related to the write-off of inventory. See "Note 2—Summary of Significant Accounting Policies" for additional information on the impairment charges.

Schedule of Restructuring Cost Allocation

The costs are allocated as follows in the statement of operations:


	Years Ended December 31,
	2023		2022
	(In thousands)
Cost of revenue	$	744	$	24,527
Selling and marketing expense	(1,300)		17,174
General and administrative expense	(282)		28,096
Product development expense	313		3,435
Depreciation	—		7,006
Total	$	(525)	$	80,238

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Foreign Currency Translation and Transaction Gains and Losses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Other (Expense) Income, Net \| Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss)
Gains (losses) reclassified to earnings	$ (0.1)	$ (10.0)

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

GOODWILL AND INTANGIBLE ASSETS - Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 3,024,266	$ 3,030,168	$ 3,226,610
Intangible assets with indefinite lives	544,228	631,097
Intangible assets with definite lives, net of accumulated amortization	330,477	538,944
Total goodwill and intangible assets, net	$ 3,898,971	$ 4,200,209

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References + Details

Audit Information	12 Months Ended
Audit Information	Dec. 31, 2023
Auditor Information [Abstract]
Auditor Name	Ernst & Young LLP
Auditor Location	New York, New York
Auditor Firm ID	42

ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME

The following tables present the components of accumulated other comprehensive (loss) income, net of income tax.


	Year Ended December 31, 2023
	Foreign Currency Translation Adjustment		Unrealized Losses On Interest Rate Swaps		Unrealized Gains (Losses) On Available-For-Sale Marketable Debt Securities		Accumulated Other Comprehensive (Loss) Income
	(In thousands)
Balance at January 1	$	(13,186)	$	—	$	53	$	(13,133)
Other comprehensive income (loss) before reclassifications	2,915		2,958		(33)		5,840
Amounts reclassified to earnings	—		(3,654)		—		(3,654)
Net current period other comprehensive income (loss)	2,915		(696)		(33)		2,186
Accumulated other comprehensive loss allocated to noncontrolling interests during the period	5		—		—		5
Balance at December 31	$	(10,266)	$	(696)	$	20	$	(10,942)


	Year Ended December 31, 2022
	Foreign Currency Translation Adjustment		Unrealized Gains On Available-For-Sale Marketable Debt Securities		Accumulated Other Comprehensive Income (Loss)
	(In thousands)
Balance at January 1	$	4,397	$	—	$	4,397
Other comprehensive (loss) income before reclassifications	(17,636)		53		(17,583)
Amounts reclassified to earnings	42		—		42
Net current period other comprehensive (loss) income	(17,594)		53		(17,541)
Accumulated other comprehensive loss allocated to noncontrolling interests during the period	11		—		11
Balance at December 31	$	(13,186)	$	53	$	(13,133)


	Year Ended December 31, 2021
	Foreign Currency Translation Adjustment		Unrealized Gains (Losses) On Available-For-Sale Marketable Debt Securities		Accumulated Other Comprehensive (Loss) Income
	(In thousands)
Balance at January 1	$	(6,172)	$	2	$	(6,170)
Other comprehensive income (loss) before reclassifications	527		(2)		525
Amounts reclassified to earnings	10,032		—		10,032
Net current period other comprehensive income (loss)	10,559		(2)		10,557
Accumulated other comprehensive loss allocated to noncontrolling interests during the period	10		—		10
Balance at December 31	$	4,397	$	—	$	4,397

The amounts reclassified out of foreign currency translation adjustment into earnings for the years ended December 31, 2022 and 2021 relate to the substantial liquidation of certain international subsidiaries.

At December 31, 2023, there was $0.2 million of deferred income tax benefit related to unrealized losses on interest rate swaps. At December 31, 2023 and 2022, there was less than $0.1 million of deferred income tax provision related to net unrealized gains on available-for-sale marketable debt securities. At December 31, 2021, there was no income tax benefit or provision on the accumulated other comprehensive (loss) income.

FINANCIAL STATEMENT DETAILS - Supplemental Disclosure of Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash (paid) received during the year for:
Interest, net	$ (156,172)	$ (98,150)	$ (21,702)
Income tax payments	(18,782)	(16,407)	(9,880)
Income tax refunds	1,667	$ 3,004	$ 1,762
Interest receipts related to interest rate swaps	$ 3,200

LEASES - Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets:
ROU Assets	$ 299,597	$ 428,160
Liabilities:
Current lease liabilities	68,126	67,192
Long-term lease liabilities	401,118	518,851
Total lease liabilities	$ 469,244	$ 586,043
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other non-current assets	Other non-current assets
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other long-term liabilities	Other long-term liabilities

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Balance Sheet for MGM (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Current assets	$ 2,240,592	$ 2,561,135
Current liabilities	950,490	1,079,988
Redeemable noncontrolling interests	33,378	27,235
Noncontrolling interests	677,142	$ 640,920
MGM
Schedule of Equity Method Investments [Line Items]
Current assets	4,910,593
Non-current assets	37,457,955
Current liabilities	3,126,068
Non-current liabilities	34,874,979
Redeemable noncontrolling interests	33,356
Noncontrolling interests	$ 522,975

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Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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+ Details

- Definition

Amount of equity (deficit) attributable to noncontrolling interest. Excludes temporary equity.

+ References

+ Details

DOTDASH MEREDITH RESTRUCTURING CHARGES, TRANSACTION-RELATED EXPENSES AND CHANGE-IN-CONTROL PAYMENTS - Allocation of Restructuring Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ (525)	$ 80,238
Cost of revenue
Restructuring Cost and Reserve [Line Items]
Restructuring costs	744	24,527
Selling and marketing expense
Restructuring Cost and Reserve [Line Items]
Restructuring costs	(1,300)	17,174
General and administrative expense
Restructuring Cost and Reserve [Line Items]
Restructuring costs	(282)	28,096
Product development expense
Restructuring Cost and Reserve [Line Items]
Restructuring costs	313	3,435
Depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 0	$ 7,006

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

LONG-TERM DEBT - Aggregate Contractual Maturities of Long-Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
2024	$ 30,000
2025	47,500
2026	275,000
2027	12,500
2028	1,675,000
Total	2,040,000
Current portion of long-term debt	30,000	$ 30,000
Less: original issue discount	4,470
Less: unamortized debt issuance costs	12,376
Long-term debt, net	$ 1,993,154	$ 2,019,759

FINANCIAL STATEMENT DETAILS

12 Months Ended

Dec. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

FINANCIAL STATEMENT DETAILS

Cash and Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the balance sheet to the total amounts shown in the statement of cash flows:


	December 31, 2023		December 31, 2022		December 31, 2021		December 31, 2020
	(In thousands)
Cash and cash equivalents	$	1,297,445	$	1,417,390	$	2,118,730	$	3,366,176
Restricted cash included in other current assets	8,539		1,165		1,941		448
Restricted cash included in other non-current assets	257		7,514		1,193		449
Cash, cash equivalents, and restricted cash included in current assets of discontinued operations	—		—		—		110,037
Total cash and cash equivalents and restricted cash as shown on the statement of cash flows	$	1,306,241	$	1,426,069	$	2,121,864	$	3,477,110

Restricted cash included in "Other current assets" in the balance sheet at December 31, 2023 primarily consists of cash held in escrow related to the funded pension plan in the U.K. and cash held related to insurance programs at Care.com. Restricted cash included in "Other non-current assets" in the balance sheet at December 31, 2023 consists of deposits related to leases.

Restricted cash included in "Other current assets" in the balance sheet at December 31, 2022 primarily consists of cash held related to insurance programs at Care.com. Restricted cash included in "Other non-current assets" in the balance sheet at December 31, 2022 primarily consists of cash held in escrow related to the funded pension plan in the U.K. as well as a check endorsement guarantee at Roofing within Emerging & Other and deposits related to leases.

Restricted cash included in "Other current assets" in the balance sheet at December 31, 2021 primarily consists of cash held in escrow related to the funded pension plan in the U.K. Restricted cash included in "Other non-current assets" in the balance sheet at December 31, 2021 consists of deposits related to leases and a check endorsement guarantee at Roofing within Emerging & Other.

Restricted cash included in "Other current assets" in the balance sheet at December 31, 2020 primarily consists of funds collected from service providers for payments in dispute, which were not settled as of the period end, and cash reserved to fund insurance claims at Angi Inc. Restricted cash included in "Other non-current assets" in the balance sheet at December 31, 2020 consists of deposits related to leases.

At December 31, 2023, all of the Company's international cash can be repatriated without significant tax consequences.

Credit Losses

The following table presents the changes in the allowance for credit losses for the years ended December 31, 2023 and 2022, respectively:


	2023		2022
	(In thousands)
Balance at January 1	$	50,971	$	36,637
Current period provision for credit losses	87,729		116,553
Write-offs charged against the allowance	(104,764)		(107,188)

Recoveries collected	5,227		5,367
Sale of a business	(6,958)		—
Other	174		(398)
Balance at December 31	$	32,379	$	50,971

Other current assets


	December 31,
	2023		2022
	(In thousands)

Prepaid expenses	$	91,118	$	80,039


Other	166,381		216,524
Other current assets	$	257,499	$	296,563

Capitalized software, equipment, buildings, land and leasehold improvements, net


	December 31,
	2023		2022
	(In thousands)
Capitalized software and computer equipment	$	329,312	$	291,600
Buildings and leasehold improvements	268,840		305,304
Furniture and other equipment	131,442		137,570
Land	86,032		20,234
Projects in progress	13,911		30,379
Total gross carrying amount	829,537		785,087
Accumulated depreciation and amortization	(374,256)		(274,473)
Capitalized software, equipment, buildings, land and leasehold improvements, net	$	455,281	$	510,614

Accrued expenses and other current liabilities


	December 31,
	2023		2022
	(In thousands)
Accrued employee compensation and benefits	$	180,384	$	169,227
Customer deposit liability	118,522		125,441
Accrued advertising expense	56,055		78,601
Other	316,566		386,490
Accrued expenses and other current liabilities	$	671,527	$	759,759

Other income (expense), net


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Interest income	$	71,114	$	24,916	$	1,351
Unrealized increase (decrease) in the estimated fair value of a warrant	2,832		(62,495)		104,018
Foreign exchange gains (losses), net(a)	1,528		(8,503)		(13,636)
Net periodic pension benefit credit (cost), other than the service cost component(b)	139		(206,422)		(17,858)
Net (downward) upward adjustments to the carrying value of equity securities without readily determinable fair values and realized gains on sales of businesses and investments(c)(d)	(19,201)		59,299		18,874
Unrealized (loss) gain related to marketable equity securities	(145)		(20,342)		18,788
Realized gain on the sale of a marketable equity security	—		—		7,174
Loss on extinguishment of debt(e)	—		—		(1,110)

Other	7,595		(4,238)		(5,747)
Other income (expense), net	$	63,862	$	(217,785)	$	111,854

_____________________

(a) Includes $10.0 million in foreign exchange losses primarily related to the substantial liquidation of certain foreign subsidiaries in the year ended December 31, 2021.

(b) Includes pre-tax actuarial gains (losses) of $1.7 million, $(213.4) million and $(7.1) million for the years ended December 31, 2023, 2022 and 2021, respectively, related to the pension plans in the U.S. and U.K. See "Note 13—Pension and Postretirement Benefit Plans" for additional information.

(c) Includes downward and upward adjustments to the carrying value of equity securities without readily determinable fair values. For the years ended December 31, 2023, 2022 and 2021, the Company recorded net (downward) and upward adjustments of $(20.2) million, $(89.1) million and $8.9 million, respectively.

(d) Includes a gain of approximately $132.2 million on the sale of Bluecrew in the year ended December 31, 2022. On November 9, 2022, the Company completed the sale of Bluecrew, which was included within Emerging & Other, to EmployBridge, a provider of light industrial staffing solutions, for cash and stock with the Company becoming a minority shareholder in the combined company.

(e) Represents the write-off of deferred debt issuance costs related to the ANGI Group Term Loan, which was repaid in its entirety during the second quarter of 2021.

Supplemental Disclosure of Cash Flow Information:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Cash (paid) received during the year for:
Interest, net(f)	$	(156,172)	$	(98,150)	$	(21,702)
Income tax payments	$	(18,782)	$	(16,407)	$	(9,880)
Income tax refunds	$	1,667	$	3,004	$	1,762

(f) Includes receipts of $3.2 million related to the interest rate swaps for the year ended December 31, 2023. See "Note 2—Summary of Significant Accounting Policies" and "Note 7—Long-term Debt" for additional information.

CONSOLIDATED STATEMENT OF COMPREHENSIVE OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 258,317	$ (1,192,455)	$ 588,985
Other comprehensive income (loss), net of income taxes:
Change in foreign currency translation adjustment	3,428	(18,829)	10,466
Change in net unrealized losses on interest rate swaps	(696)	0	0
Change in unrealized gains and losses on available-for-sale marketable debt securities	(33)	53	(2)
Total other comprehensive income (loss), net of income taxes	2,699	(18,776)	10,464
Comprehensive income (loss), net of income taxes	261,016	(1,211,231)	599,449
Components of comprehensive loss (income) attributable to noncontrolling interests:
Net loss attributable to noncontrolling interests	7,625	22,285	8,562
Change in foreign currency translation adjustment attributable to noncontrolling interests	(513)	1,235	93
Comprehensive loss attributable to noncontrolling interests	7,112	23,520	8,655
Comprehensive income (loss) attributable to IAC shareholders	$ 268,128	$ (1,187,711)	$ 608,104

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Income Statement for MGM (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Revenue		$ 4,365,235	$ 5,235,280	$ 3,699,627
Expenses		4,625,998	5,710,051	3,836,694
Net income		258,317	(1,192,455)	588,985
Net income attributable to MGM		$ 265,942	$ (1,170,170)	$ 597,547
MGM
Schedule of Equity Method Investments [Line Items]
Revenue	$ 4,375,563
Expenses	3,962,796
Net income	379,612
Net income attributable to MGM	$ 313,460

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

CONSOLIDATED BALANCE SHEET (Parenthetical) - $ / shares	Dec. 31, 2023	Dec. 31, 2022
Treasury stock (in shares)	4,350,000	1,101,000
Common Stock
Common stock, par value (USD per share)	$ 0.0001	$ 0.0001
Common stock authorized (in shares)	1,600,000,000	1,600,000,000
Common stock issued (in shares)	84,465,000	84,184,000
Common stock outstanding (in shares)	80,115,000	83,083,000
Class B Common Stock
Common stock, par value (USD per share)	$ 0.0001	$ 0.0001
Common stock authorized (in shares)	400,000,000	400,000,000
Common stock issued (in shares)	5,789,000	5,789,000
Common stock outstanding (in shares)	5,789,000	5,789,000

INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Net operating loss carryforwards	$ 435,318	$ 458,603
Long-term lease liabilities	112,178	137,869
Capitalized research & development expenditures	91,550	74,179
Tax credit carryforwards	72,369	64,903
Accrued expenses	53,551	58,697
Other	101,356	104,948
Total deferred tax assets	866,322	899,199
Less: valuation allowance	(132,058)	(124,012)
Net deferred tax assets	734,264	775,187
Deferred tax liabilities:
Investment in MGM Resorts International	(383,170)	(212,390)
Investment in subsidiaries	(226,898)	(225,375)
Intangible assets, net of accumulated amortization	(174,933)	(219,856)
Right-of-use assets	(71,531)	(100,643)
Capitalized software, equipment, buildings, land and leasehold improvements, net	(13,639)	(46,740)
Other	(27,029)	(44,922)
Total deferred tax liabilities	(897,200)	(849,926)
Net deferred tax liabilities	$ (162,936)	$ (74,739)

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Marketable Securities

At December 31, 2023 and 2022, the fair value of marketable securities are as follows:


	December 31,
	2023		2022
	(In thousands)
Marketable equity securities	$	—	$	4,317
Available for sale marketable debt securities	148,998		235,056
Total marketable securities	$	148,998	$	239,373

Schedule of Current Available-for-sale Marketable Securities

At December 31, 2023 and 2022, current available-for-sale marketable debt securities are as follows:


	December 31, 2023								December 31, 2022
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
Treasury discount notes	$	148,971	$	27	$	—	$	148,998	$	234,987	$	75	$	(6)	$	235,056
Total available-for-sale marketable debt securities	$	148,971	$	27	$	—	$	148,998	$	234,987	$	75	$	(6)	$	235,056

Schedule of Investment in MGM Resorts International

Investment in MGM Resorts International


	December 31,
	2023		2022
	(In thousands)
Investment in MGM Resorts International	$	2,891,850	$	2,170,182

The following tables present MGM's summarized financial information as of December 31, 2023 and for the period October 1, 2023 through December 31, 2023, which is the period during which the Company determined that the equity method of accounting applies. As noted above, the Company has elected the fair value measurement alternative for its investment in MGM. As a result, the value of our investment and the financial impacts in any given period are not necessarily correlated with the balance sheet and income statement information presented below.


	December 31, 2023

	(In thousands)
Current assets	$	4,910,593
Non-current assets	$	37,457,955
Current liabilities	$	3,126,068
Non-current liabilities	$	34,874,979
Redeemable noncontrolling interests	$	33,356
Noncontrolling interests	$	522,975


	October 1, 2023 through December 31, 2023

	(In thousands)
Revenues	$	4,375,563
Expenses	$	3,962,796
Net income	$	379,612
Net income attributable to MGM	$	313,460

Schedule of Long-term Investments

Long-term investments consist of:


	December 31,
	2023		2022
	(In thousands)
Equity securities without readily determinable fair values	$	404,848	$	323,530
Other	6,368		2,191
Total long-term investments	$	411,216	$	325,721

Schedule of Realized and Unrealized Gains and Losses

The following table presents a summary of unrealized pre-tax gains and losses recorded in "Other income (expense), net" in the statement of operations as adjustments to the carrying value of equity securities without readily determinable fair values held at December 31, 2023 and 2022.


	Years Ended December 31,
	2023		2022
	(In thousands)
Upward adjustments (gross unrealized pre-tax gains)	$	2,227	$	8,245
Downward adjustments including impairments (gross unrealized pre-tax losses)	(22,463)		(97,382)
Total	$	(20,236)	$	(89,137)

Realized and unrealized pre-tax gains and losses for the Company's investments without readily determinable fair values for the years ended December 31, 2023, 2022 and 2021 are as follows:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Realized pre-tax gains, net, for equity securities sold	$	89	$	12,434	$	5,773
Unrealized pre-tax (losses) gains, net, on equity securities held	(20,236)		(89,137)		8,892
Total pre-tax (losses) gains, net recognized	$	(20,147)	$	(76,703)	$	14,665

Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following tables present the Company's financial instruments that are measured at fair value on a recurring basis:


	December 31, 2023
	Quoted Market Prices for Identical Assets in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
	(In thousands)
Assets:
Cash equivalents:
Money market funds	$	910,849	$	—	$	—	$	910,849
Treasury discount notes	—		87,251		—		87,251
Time deposits	—		19,497		—		19,497
Marketable securities:

Treasury discount notes	—		148,998		—		148,998
Investment in MGM	2,891,851		—		—		2,891,851
Other non-current assets:
Warrant	—		—		49,631		49,631

Total	$	3,802,700	$	255,746	$	49,631	$	4,108,077

Liabilities:
Interest rate swaps(a)	$	—	$	(907)	$	—	$	(907)

_____________________

(a) Interest rate swaps relate to the $350 million notional amount entered into to hedge Dotdash Meredith's Term Loan B and are included in "Other long-term liabilities" in the balance sheet. See “Note 2—Summary of Significant Accounting Policies” and "Note 7 —Long-term Debt" for additional information. The fair value of interest rate swaps was determined using discounted cash flows derived from observable market prices, including swap curves, which are Level 2 inputs.


	December 31, 2022
	Quoted Market Prices for Identical Assets in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
	(In thousands)
Assets:
Cash equivalents:
Money market funds	$	862,829	$	—	$	—	$	862,829
Treasury discount notes	—		137,219		—		137,219
Time deposits	—		16,018		—		16,018
Marketable securities:
Marketable equity securities	4,317		—		—		4,317
Treasury discount notes	—		235,056		—		235,056
Investment in MGM	2,170,182		—		—		2,170,182
Other non-current assets:
Warrant	—		—		46,799		46,799
Total	$	3,037,328	$	388,293	$	46,799	$	3,472,420

Schedule of Changes in Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)

The following table presents the changes in the Company's financial instruments that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3):


	Years Ended December 31,
	2023		2022
	Warrant			Warrant		Contingent Consideration Arrangements
	(In thousands)
Balance at January 1	$	46,799		$	109,294	$	(612)

Total net gains (losses):
Fair value adjustments included in earnings	2,832			(62,495)		612

Balance at December 31	$	49,631		$	46,799	$	—

- Definition

Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-9

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aa)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aaa)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

+ Details

STOCK-BASED COMPENSATION

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

STOCK-BASED COMPENSATION

IAC currently has one active plan (the "Plan") under which stock-based awards denominated in shares of or stock-based awards settleable in IAC common stock have been and may be granted. The Plan has a stated term of ten years. The Plan does not specify grant dates or vesting schedules of awards as those determinations have been delegated to the Compensation and Human Resources Committee of IAC's Board of Directors (the "Committee"). Each grant agreement reflects the vesting schedule for that grant as determined by the Committee. There are also outstanding stock-based awards that were granted under older plans that have since expired or been discontinued. The Plan provides for grants of stock options to acquire shares of IAC common stock (the exercise price of stock options granted will not be less than the market price of the Company's common stock on the grant date), RSUs denominated in shares of IAC common stock, including those that may be linked to the achievement of the Company's stock price, known as market-based awards ("MSUs") and those that may be linked to the achievement of a performance target, known as performance-based awards ("PSUs"), restricted stock, as well as other equity awards, including those denominated or settleable in IAC shares. The Plan authorizes the Company to grant awards to its employees, officers, directors and consultants. At December 31, 2023, there are 31.0 million IAC common shares of stock reserved for future issuance under this plan.

IAC Denominated Stock-based Awards

IAC Restricted Common Stock

On November 5, 2020, the Company entered into a ten-year employment agreement and a Restricted Stock Agreement ("RSA Agreement") with Joseph Levin, IAC's Chief Executive Officer ("CEO"). The RSA Agreement provides for a grant of 3,000,000 shares of IAC restricted common stock that cliff vest on the ten-year anniversary of the grant date based on satisfaction of IAC's stock price targets and subject to Mr. Levin's continued employment through the vesting date.

Mr. Levin may request an extension of the measurement and vesting period from 10 to 12 years and IAC will consider the request in light of the circumstances.

Mr. Levin may elect to accelerate vesting of the IAC restricted shares, effective on the 6th, 7th, 8th, or 9th anniversary of the grant date, in which case performance will be measured through such date, and Mr. Levin will receive a pro-rated portion of the award (based on the years elapsed from the grant date) and any remaining shares will be forfeited. The applicable stock price goals are proportionately lower on the earlier vesting dates.

The value of the restricted common stock grant was estimated using a lattice model that incorporates a Monte Carlo simulation of IAC's stock price. The fair value of the restricted common stock grant on November 5, 2020 was $61.06 per share. The total grant date fair value of the award was $183.2 million.

In connection with the Spin-off, pursuant to the RSA Agreement, the stock price targets of the IAC restricted stock award were adjusted to reflect the effect of the Spin-off and Vimeo entered into a separate restricted stock agreement granting Mr. Levin shares of Vimeo common stock subject to the same terms and conditions of the RSA Agreement except for the stock price targets for each respective award. The total fair value of the modified IAC restricted stock award and the new Vimeo restricted stock award was $228.3 million, of which $141.1 million was allocated to the IAC restricted stock award and $87.3 million was allocated to the Vimeo restricted stock award. Both awards were estimated using a lattice model that incorporated a Monte Carlo simulation of IAC's and Vimeo's stock price on the modification date. In connection with the modified IAC restricted stock award, $10.1 million of expense had previously been recorded prior to the Spin-off and $131.0 million of expense is to be recognized over the remaining vesting period. At December 31, 2023, there is $94.9 million of unrecognized compensation cost that is left to be recognized related to this award.

IAC Restricted Stock Units

RSU awards currently outstanding generally cliff-vest after a five-year period or vest over a four-year period from the grant date. There are no MSU or PSU awards outstanding at December 31, 2023 and 2022.

RSUs are awards in the form of phantom shares or units denominated in a hypothetical equivalent number of shares of IAC common stock and with the value of each RSU equal to the fair value of IAC common stock at the date of grant. Each RSU grant is subject to service-based vesting, where a specific period of continued employment must pass before an award vests. The expense is measured at the grant date as the fair value of IAC common stock and expensed as stock-based compensation over the vesting term.

Unvested RSUs outstanding at December 31, 2023 and changes during the period ended December 31, 2023 are as follows:


	RSUs
	Number of Shares	Weighted Average Grant Date Fair Value
	(Shares in thousands)
Unvested at January 1	1,458	$	93.29
Granted	499	53.41
Vested	(88)	94.72
Forfeited	(47)	94.55





Unvested at December 31	1,822	$	82.28

RSU awards are settled on a net basis, with the award holder entitled to receive IAC shares equal to the number of RSUs vesting less a number of shares with a value equal to the required cash tax withholding payment, which will be paid by the Company. The number of IAC common shares that would be required to net settle RSUs outstanding at February 9, 2024 is 0.9 million shares. In addition, withholding taxes, which will be paid by the Company on behalf of the employees upon vesting, would have been $43.5 million at February 9, 2024, assuming a 50% withholding rate.

The weighted average fair value of RSUs granted for the years ended December 31, 2023, 2022 and 2021, based on market prices of IAC's common stock on the grant date, was $53.41, $114.27 and $171.53, respectively.

The total fair value of RSUs that vested for the years ended December 31, 2023, 2022 and 2021 was $8.3 million, $12.7 million and $15.9 million, respectively.

IAC Stock Options

All outstanding stock options are fully vested.

Stock options outstanding at December 31, 2023 and changes during the period ended December 31, 2023 are as follows:


	December 31, 2023
	Shares	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years	Aggregate Intrinsic Value
	(Shares and intrinsic value in thousands)
Options Outstanding at January 1	2,822	$	14.05
Granted	—	—
Exercised	(252)	(12.23)
Forfeited	—	—
Expired	—	—






Options Outstanding at December 31	2,570	$	14.23	1.9	$	98,053
Options exercisable	2,570	$	14.23	1.9	$	98,053

The aggregate intrinsic value in the table above represents the difference between IAC's closing stock price on the last trading day of 2023 and the exercise price, multiplied by the number of in-the-money options that would have been exercised had all option holders exercised their options on December 31, 2023. The total intrinsic value of IAC stock options exercised during the years ended December 31, 2023, 2022 and 2021 was $11.3 million, $3.4 million and $135.1 million, respectively.

The following table summarizes the information about stock options outstanding and exercisable at December 31, 2023:


	Options Outstanding				Options Exercisable
Range of Exercise Prices	Outstanding at December 31, 2023	Weighted- Average Remaining Contractual Life in Years	Weighted- Average Exercise Price		Exercisable at December 31, 2023	Weighted- Average Remaining Contractual Life in Years	Weighted- Average Exercise Price
	(Shares in thousands)
Less than $10.00	426	2.2	$	8.61	426	2.2	$	8.61
$10.01 to $15.00	666	1.2	13.66		666	1.2	13.66
$15.01 to $20.00	1,474	2.0	16.09		1,474	2.0	16.09
Greater than $20.01	4	3.6	21.17		4	3.6	21.17





	2,570	1.9	$	14.23	2,570	1.9	$	14.23

The fair value of stock option awards, with the exception of market-based awards, is estimated on the grant date using the Black-Scholes option pricing model. The Black-Scholes option pricing model incorporates various assumptions, including expected volatility, risk-free interest rate and expected term.

The Company has the discretion to settle IAC stock options net of withholding tax and exercise price or require the award holder to pay its share of the withholding tax, which he or she may do so by selling IAC common shares. The aggregate intrinsic value of IAC's stock options outstanding as of February 9, 2024, is $99.3 million. Assuming all stock options outstanding on February 9, 2024 were net settled on that date, the Company would have issued 0.9 million common shares and would have remitted $49.6 million in cash for withholding taxes (assuming a 50% withholding rate). Assuming all stock options outstanding on February 9, 2024 were settled through the issuance of a number of IAC common shares equal to the number of stock options exercised, the Company would have issued 2.6 million common shares and would have received $36.5 million in cash proceeds.

Stock-based Awards Denominated in the Shares of Certain Subsidiaries

Non-publicly traded Subsidiaries

The following description excludes awards denominated in Angi Inc. shares.

The Company has granted stock settled stock appreciation rights to employees and management that are denominated in the equity of certain non-publicly traded subsidiaries of the Company. These equity awards vest over a period of years or upon the occurrence of certain prescribed events. The value of the stock settled stock appreciation rights is tied to the value of the common stock of these subsidiaries. Accordingly, these interests only have value to the extent the relevant business appreciates in value above the initial value utilized to determine the exercise price. These interests can have significant value in the event of significant appreciation. The fair value of these interest is generally determined by the Board of Directors of the applicable subsidiary, which will occur at various dates through 2029. These equity awards are settled on a net basis, with the award holder entitled to receive a payment in IAC common shares equal to the intrinsic value of the award at exercise less an amount equal to the required cash tax withholding payment, which will be paid by the Company. The number of IAC common shares ultimately needed to settle these awards may vary significantly from the estimated number below as a result of both movements in our stock price and a determination of fair value of the relevant subsidiary that is different than our estimate. The expense associated with these equity awards is initially measured at fair value at the grant date and is expensed as stock-based compensation over the vesting term. The number of IAC common shares that would be required to settle these interests at current estimated fair values, including vested and unvested interests, at February 9, 2024 is 0.2 million shares. Withholding taxes, which will be paid by the Company on behalf of the employees upon exercise, would have been $10.4 million at February 9, 2024, assuming a 50% withholding rate.

Angi Inc.

Angi Inc. currently settles all of its equity awards on a net basis. Certain Angi Inc. stock appreciation rights issued prior to the transaction resulting in formation of Angi Inc. in 2017 (the "Combination") are settleable in either shares of Angi Inc. common stock or shares of IAC common stock at IAC's option. If settled in IAC common stock, Angi Inc. reimburses IAC in shares of its common stock. At February 9, 2024 these awards are out of the money and have no intrinsic value. Certain equity awards denominated in shares of Angi Inc.'s subsidiaries may be settled in either shares of Angi Inc. common stock or IAC common stock at IAC's option. To the extent shares of IAC common stock are issued in settlement of these awards, Angi Inc. is obligated to reimburse IAC for the cost of those shares by issuing shares of Angi Inc. common stock. The aggregate intrinsic value of all other Angi Inc. equity awards, including stock options, RSUs and subsidiary denominated equity at February 9, 2024 is $67.4 million; assuming these awards were net settled on that date, the withholding taxes that would be payable by Angi Inc. on behalf of the employees are $32.5 million, assuming a 50% withholding rate, and Angi Inc. would have issued 14.1 million shares of its common stock.

Forfeitures and Unrecognized Compensation Cost

The amount of stock-based compensation expense recognized in the statement of operations is net of estimated forfeitures. The forfeiture rate is estimated at the grant date based on historical experience and revised, if necessary, in subsequent periods if actual forfeitures differ from the estimated rate. The expense ultimately recorded is for the awards that vest. At December 31, 2023, there is $269.6 million of unrecognized compensation cost, net of estimated forfeitures, related to all equity-based awards, which is expected to be recognized over a weighted average period of approximately 3.9 years.

Tax Benefits

The total income tax benefit recognized in the statement of operations for the years ended December 31, 2023, 2022 and 2021 related to all stock-based compensation expense is $17.2 million, $20.0 million and $101.8 million, respectively.

The aggregate income tax benefit recognized related to the exercise of stock options for the years ended December 31, 2023, 2022 and 2021, is $4.0 million, $1.7 million, and $81.0 million, respectively. There may be some delay in the timing of the realization of the cash benefit of the income tax deductions related to stock-based compensation because it will be dependent upon the amount and timing of future taxable income and the timing of estimated income tax payments.

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Long-term Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Equity securities without readily determinable fair values	$ 404,848	$ 323,530
Other	6,368	2,191
Total long-term investments	$ 411,216	$ 325,721

ORGANIZATION	12 Months Ended
ORGANIZATION	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION	ORGANIZATION Company overview IAC today is comprised of category leading businesses, including Dotdash Meredith, Angi Inc. and Care.com, as well as others ranging from early stage to established businesses. As used herein, “IAC,” the “Company,” “we,” “our,” “us” and other similar terms refer to IAC Inc. and its subsidiaries (unless the context requires otherwise). Dotdash Meredith On December 1, 2021, Dotdash Media Inc. (referred to herein as "Dotdash"), a wholly-owned subsidiary of IAC, completed the acquisition of Meredith Holdings Corporation ("Meredith"), the former subsidiary of Meredith Corporation, comprising its digital and magazine businesses and its corporate operations. The parent of the combined entity is Dotdash Meredith, Inc. ("Dotdash Meredith"). See "Note 4—Business Combination" for a description of the acquisition of Meredith. Dotdash Meredith is one of the largest digital and print publishers in America. Nearly 200 million people trust us to help them make decisions, take action, and find inspiration. Dotdash Meredith's over 40 iconic brands include PEOPLE, Better Homes & Gardens, Verywell, FOOD & WINE, The Spruce, allrecipes, Byrdie, REAL SIMPLE, Investopedia, and Southern Living. Dotdash Meredith has two operating segments: (i) Digital, which includes its digital, mobile and licensing operations; and (ii) Print, which includes its magazine subscription and newsstand operations. Angi Inc. Angi Inc. is a publicly traded company that connects quality home service professionals with consumers across more than 500 different categories, from repairing and remodeling homes to cleaning and landscaping. Approximately 196,000 transacting service professionals actively sought consumer matches, completed jobs or advertised work through Angi Inc. platforms during the three months ended December 31, 2023. Additionally, consumers turned to at least one Angi Inc. business to find a service professional for approximately 23 million projects during the year ended December 31, 2023. At December 31, 2023, IAC’s economic interest and voting interest in Angi Inc. were 84.2% and 98.1%, respectively. On November 1, 2023, Angi Inc. completed the sale of 100% of its wholly-owned subsidiary, Total Home Roofing, LLC ("Roofing"), and has reflected it as a discontinued operation in its standalone financial statements. Roofing does not meet the threshold to be reflected as a discontinued operation at the IAC level. During the fourth quarter of 2023, IAC moved Roofing to Emerging & Other and prior period financial information has been recast to conform to the current year presentation. Following IAC's move of Roofing to Emerging & Other, Angi Inc. has three operating segments: (i) Ads and Leads, (ii) Services and (iii) International (includes Europe and Canada), and operates under multiple brands including Angi, HomeAdvisor and Handy. Ads and Leads provides service professionals the capability to engage with potential customers, including quoting and invoicing services, and provides consumers with tools and resources to help them find local, pre-screened and customer-rated service professionals nationwide for home repair, maintenance and improvement projects. Services consumers can request household services directly through the Angi Inc. platform and Angi Inc. fulfills the request through the use of independently established home services providers engaged in a trade, occupation and/or business that customarily provides such services. The matching and pre-priced booking services and related tools and directories are provided to consumers free of charge. Search The Search segment consists of Ask Media Group and the Desktop business. Ask Media Group is a collection of websites providing general search services and information. The Desktop business includes our direct-to-consumer downloadable desktop applications and our business-to-business partnership operations. Ask Media Group’s websites include, among others: Ask.com, a search site with a variety of fresh and contemporary content (celebrities, culture, entertainment, travel and general knowledge); Reference.com, a search and general knowledge content site that provides content across select vertical categories (history, business and finance and geography, among other verticals); Consumersearch.com, a search and content website that provides content designed to simplify the product research process; and Shopping.net, a vertical shopping search site, each of which contains a mix of search services and/or content targeted to various user or segment demographics. Emerging & Other Emerging & Other primarily includes: •Care.com, a leading online destination for families to connect with caregivers for their children, aging parents, pets and homes and for caregivers to connect with families seeking care services. Care.com's brands include Care For Business, Care.com offerings to enterprises and HomePay; •Mosaic Group, a leading developer and provider of global subscription mobile applications. Mosaic Group has a portfolio of some of the largest and most popular applications in the following verticals: Communications (RoboKiller, TapeACall, Trapcall), Language (iTranslate, Speak & Translate), Weather (Clime: NOAA Weather Radar Live, Weather Live), Business (PDF Hero, Scan Hero) and Lifestyle (Blossom, Pixomatic); •Roofing (previously included within the Angi Inc. segment), a provider of roof replacement and repair services, which was sold on November 1, 2023; •Vivian Health, a platform to efficiently connect healthcare professionals with job opportunities; •IAC Films, a provider of producer services for feature films, primarily for initial sale and distribution through theatrical releases and video-on-demand services in the United States ("U.S.") and internationally; •The Daily Beast, a website dedicated to news, commentary, culture and entertainment that publishes original reporting and opinion from its roster of full-time journalists and contributors; and •Bluecrew, a technology driven staffing platform exclusively for flexible W-2 work, for periods prior to its sale on November 9, 2022. Vimeo Spin-off: On May 25, 2021, IAC completed the spin-off of its full stake in Vimeo, Inc. (formerly Vimeo Holdings, Inc. ("Vimeo")) to IAC shareholders (which we refer to as the “Spin-off”). Following the Spin-off, Vimeo became an independent, separately traded public company. Therefore, Vimeo is presented as a discontinued operation within the Company's financial statements for 2021. See "Note 1 8 —Discontinued Operations'" for additional details.

LEASES - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
LEASES - Lease Cost (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Sep. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Fixed lease expense			$ 113,905	$ 70,397	$ 44,071
Variable lease expense			19,846	16,694	9,902
Net lease expense			133,751	87,091	53,973
Operating lease impairment charges			48,900	2,300	10,500
Short-term lease cost			1,600	4,000	1,400
Sublease income			15,200	17,100	6,700
Gains (losses) on termination of leases			(200)	3,300	(100)
Meredith Corporation
Lessee, Lease, Description [Line Items]
Operating lease impairment charges	$ 44,700	$ 14,300	44,700	14,300
Cost of revenue
Lessee, Lease, Description [Line Items]
Fixed lease expense			708	1,283	1,707
Selling and marketing expense
Lessee, Lease, Description [Line Items]
Fixed lease expense			2,362	6,229	9,443
Variable lease expense			79	199	1,087
General and administrative expense
Lessee, Lease, Description [Line Items]
Fixed lease expense			110,177	61,886	31,165
Variable lease expense			19,610	16,406	8,176
Product development expense
Lessee, Lease, Description [Line Items]
Fixed lease expense			658	999	1,756
Variable lease expense			$ 157	$ 89	$ 639

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Current Available-for-Sale Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Schedule of Available-for-sale Marketable Securities
Amortized Cost	$ 148,971	$ 234,987
Gross Unrealized Gains	27	75
Gross Unrealized Losses	0	(6)
Fair Value	148,998	235,056
Treasury discount notes
Schedule of Available-for-sale Marketable Securities
Amortized Cost	148,971	234,987
Gross Unrealized Gains	27	75
Gross Unrealized Losses	0	(6)
Fair Value	$ 148,998	$ 235,056

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aa)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aaa)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
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-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

+ Details

PENSION AND POSTRETIREMENT BENEFIT PLANS - Level 3 Reconciliation of Plan Assets (Details) - Significant Unobservable Inputs (Level 3) - Fair Value, Recurring - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Fair value of plan assets, beginning of year	$ 460,278	$ 313,095
Purchases	0	440,606
Settlements	(17,378)	(13,206)
Change in fair value	12,915	(237,248)
Foreign currency translation	24,253	(42,969)
Other	434	0
Fair value of plan assets, end of year	$ 480,502	$ 460,278

- Definition

+ References + Details

FINANCIAL STATEMENT DETAILS - Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and cash equivalents	$ 1,297,445	$ 1,417,390	$ 2,118,730	$ 3,366,176
Restricted cash included in other current assets	8,539	1,165	1,941	448
Restricted cash included in other non-current assets	257	7,514	1,193	449
Cash, cash equivalents, and restricted cash included in current assets of discontinued operations	0	0	0	110,037
Total cash and cash equivalents and restricted cash as shown on the statement of cash flows	$ 1,306,241	$ 1,426,069	$ 2,121,864	$ 3,477,110

SEGMENT INFORMATION

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

SEGMENT INFORMATION

The overall concept that the Company employs in determining its operating segments is to present the financial information in a manner consistent with the CODM's view of the businesses. In addition, we consider how the businesses are organized as to segment management and the focus of the businesses with regards to the types of services or products offered or the target market. Operating segments are combined for reporting purposes if they meet certain aggregation criteria, such as the Search segment, which principally relate to the similarity of their economic characteristics, or, in the case of Emerging & Other, do not meet the quantitative thresholds that require presentation as separate reportable segments.

The following table presents revenue by reportable segment:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Revenue
Dotdash Meredith
Digital	$	892,426	$	931,482	$	367,134
Print	823,456		1,026,128		92,002
Intersegment eliminations(a)	(20,989)		(22,911)		(2,863)
Total Dotdash Meredith	1,694,893		1,934,699		456,273
Angi Inc.
Domestic:
Ads and Leads	1,124,908		1,282,061		1,227,074
Services	118,033		381,256		289,948
Total Domestic	1,242,941		1,663,317		1,517,022
International	115,807		101,038		102,295
Total Angi Inc.	1,358,748		1,764,355		1,619,317
Search	629,038		731,431		873,346
Emerging & Other	695,057		823,465		753,203
Intersegment eliminations(b)	(12,501)		(18,670)		(2,512)
Total	$	4,365,235	$	5,235,280	$	3,699,627

_____________________

(a) Intersegment eliminations primarily relates to Dotdash Meredith Digital performance marketing commissions earned for the placement of magazine subscriptions for Print.

(b) Intersegment eliminations primarily relates to advertising sold by Dotdash Meredith to other IAC owned businesses for periods following the acquisition of Meredith, and Ads and Leads revenue earned from sales to Roofing prior to its sale.

The following table presents the revenue of the Company's segments disaggregated by type of service:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Dotdash Meredith
Digital:
Advertising revenue	$	560,786	$	621,714	$	236,660
Performance marketing revenue	231,087		198,441		116,195
Licensing and other revenue	100,553		111,327		14,279
Total Digital revenue	892,426		931,482		367,134
Print:
Subscription revenue	329,357		422,700		34,634
Advertising revenue	203,210		260,282		13,678
Project and other revenue	128,354		154,807		16,414
Newsstand revenue	117,316		132,855		19,183
Performance marketing revenue	45,219		55,484		8,093
Total Print revenue	823,456		1,026,128		92,002


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Intersegment eliminations(a)	(20,989)		(22,911)		(2,863)
Total Dotdash Meredith revenue	$	1,694,893	$	1,934,699	$	456,273


Angi Inc.
Domestic:
Ads and Leads:
Consumer connection revenue	$	781,089	$	954,735	$	898,422
Advertising revenue	290,799		265,466		252,206
Membership subscription revenue	52,305		60,411		68,062
Other revenue	715		1,449		8,384
Total Ads and Leads revenue	1,124,908		1,282,061		1,227,074
Services revenue	118,033		381,256		289,948
Total Domestic revenue	1,242,941		1,663,317		1,517,022
International:
Consumer connection revenue	92,635		71,851		68,686
Service professional membership subscription revenue	22,548		28,192		32,367
Advertising and other revenue	624		995		1,242
Total International revenue	115,807		101,038		102,295
Total Angi Inc. revenue	$	1,358,748	$	1,764,355	$	1,619,317


Search
Advertising revenue:
Google advertising revenue	$	582,481	$	525,987	$	675,892
Non-Google advertising revenue	44,068		200,435		183,427
Total advertising revenue	626,549		726,422		859,319
Other revenue	2,489		5,009		14,027
Total Search revenue	$	629,038	$	731,431	$	873,346

Emerging & Other
Subscription revenue	$	343,539	$	368,401	$	367,159
Marketplace revenue	226,612		261,314		243,970
Roofing revenue	90,557		137,509		68,028
Media production and distribution revenue	15,847		31,555		44,517
Advertising revenue:
Non-Google advertising revenue	12,568		16,057		19,047
Google advertising revenue	946		2,192		2,981
Total advertising revenue	13,514		18,249		22,028
Service and other revenue	4,988		6,437		7,501
Total Emerging & Other revenue	$	695,057	$	823,465	$	753,203

Revenue by geography is based on where the customer is located. Geographic information about revenue and long-lived assets is presented below:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Revenue:
United States	$	3,798,229	$	4,720,504	$	3,184,653
All other countries	567,006		514,776		514,974
Total	$	4,365,235	$	5,235,280	$	3,699,627


	December 31,
	2023		2022
	(In thousands)
Long-lived assets (excluding goodwill and intangible assets):
United States	$	743,914	$	927,759
All other countries	10,964		11,015
Total	$	754,878	$	938,774

The following tables present operating (loss) income and Adjusted EBITDA by reportable segment:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Operating (loss) income:
Dotdash Meredith
Digital(c)	$	(16,656)	$	(66,629)	$	73,980
Print(d)	(3,500)		(54,448)		(6,527)
Other(e)(f)(g)	(130,582)		(67,014)		(60,277)
Total Dotdash Meredith	(150,738)		(188,091)		7,176
Angi Inc.
Ads and Leads	50,043		85,593		65,485
Services	(23,450)		(95,166)		(63,984)
Other(e)	(61,377)		(61,794)		(56,196)
International	8,286		(4,253)		(13,222)
Total Angi Inc.	(26,498)		(75,620)		(67,917)
Search	44,198		83,398		108,334
Emerging & Other	18,763		(156,839)		(31,334)
Corporate	(146,488)		(137,619)		(153,326)
Total	$	(260,763)	$	(474,771)	$	(137,067)

_____________________

(c) Dotdash Meredith Digital operating loss for the year ended December 31, 2022 includes $39.2 million of restructuring charges, of which a $7.0 million impairment charge is presented in "Depreciation" in the statement of operations and, therefore, is excluded from Adjusted EBITDA. Restructuring charges included in Adjusted EBITDA are $32.2 million for the year ended December 31, 2022. Operating (loss) income for the years ended December 31, 2022 and 2021 includes transaction-related expenses in connection with the acquisition of Meredith of $1.1 million and $25.2 million, respectively. See "Note 2—Summary of Significant Accounting Policies" and "Note 11 —Dotdash Meredith Restructuring Charges, Transaction-Related Expenses and Change-in-Control Payments" for additional information on impairment and restructuring charges, respectively.

(d) Dotdash Meredith Print operating loss for the year ended December 31, 2022 includes $33.4 million of restructuring charges and $1.4 million of transaction-related expenses in connection with the acquisition of Meredith. See "Note 11—Dotdash Meredith Restructuring Charges, Transaction-Related Expenses and Change-in-Control Payments" for additional information.

(e) Other comprises unallocated corporate expenses.

(f) Dotdash Meredith Other operating loss for the year ended December 31, 2023 includes impairment charges of $70.0 million related to unoccupied leased office space and the write-off of certain leasehold improvements and furniture and equipment of $4.2 million, of which $29.6 million is presented in "Depreciation" in the statement of operations and, therefore, is excluded from Adjusted EBITDA. Impairment charges included in Adjusted EBITDA are $44.7 million for the year ended December 31, 2023. See "Note 2—Summary of Significant Accounting Policies" for additional information on the impairment charges.

(g) Dotdash Meredith Other operating loss for the years ended December 31, 2022 and 2021 includes transaction-related expenses in connection with the acquisition of Meredith of $4.7 million and $53.3 million, respectively, and includes $7.6 million of restructuring charges for the year ended December 31, 2022. See "Note 11—Dotdash Meredith Restructuring Charges, Transaction-Related Expenses and Change-in-Control Payments" for additional information.


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Adjusted EBITDA(h):
Dotdash Meredith
Digital(c)	$	242,969	$	186,696	$	91,179
Print(d)	64,226		31,135		2,639
Other(e)(f)(g)	(84,438)		(65,682)		(60,196)
Total Dotdash Meredith	222,757		152,149		33,622
Angi Inc.
Ads and Leads	147,357		168,952		136,260
Services	8,123		(52,126)		(48,203)
Other(e)	(50,076)		(49,866)		(46,066)
International	13,074		(481)		(6,615)
Total Angi Inc.	118,478		66,479		35,376
Search	44,283		83,486		108,381
Emerging & Other	41,839		(23,043)		25,872
Corporate	(90,873)		(79,521)		(95,985)
Total	$	336,484	$	199,550	$	107,266

_____________________

(h) The Company's primary financial and GAAP segment measure is Adjusted EBITDA, which is defined as operating income: excluding: (1) stock-based compensation expense; (2) depreciation; and (3) acquisition-related items consisting of (i) amortization of intangible assets and impairments of goodwill and intangible assets, if applicable, and (ii) gains and losses recognized on changes in the fair value of contingent consideration arrangements.

We consider operating (loss) income to be the financial measure calculated and presented in accordance with GAAP that is most directly comparable to our segment reporting performance measure, Adjusted EBITDA. The following tables reconcile operating (loss) income for the Company's reportable segments and net earnings attributable to IAC shareholders to Adjusted EBITDA:


	Year Ended December 31, 2023
	Operating (Loss) Income		Stock-Based Compensation Expense		Depreciation		Amortization of Intangibles		Goodwill Impairment		Adjusted EBITDA(h)
	(In thousands)
Dotdash Meredith
Digital	$	(16,656)	$	8,159	$	24,772	$	226,694	$	—	$	242,969
Print	(3,500)		1,381		13,302		53,043		—		64,226
Other(e)(f)	(130,582)		13,961		32,183		—		—		(84,438)
Total Dotdash Meredith	(150,738)		23,501		70,257		279,737		—		222,757
Angi Inc.
Ads and Leads	50,043		23,145		66,211		7,958		—		147,357
Services	(23,450)		7,586		23,987		—		—		8,123
Other(e)	(61,377)		11,301		—		—		—		(50,076)
International	8,286		1,382		3,406		—		—		13,074
Total Angi Inc.	(26,498)		43,414		93,604		7,958		—		118,478
Search	44,198		—		85		—		—		44,283
Emerging & Other	18,763		1,805		3,996		8,275		9,000		41,839
Corporate (i)	(146,488)		48,461		7,154		—		—		(90,873)
Total	(260,763)		$	117,181	$	175,096	$	295,970	$	9,000	$	336,484
Interest expense	(157,632)
Unrealized gain on investment in MGM Resorts International	721,668
Other income, net	63,862
Earnings before income taxes	367,135
Income tax provision	(108,818)
Net earnings	258,317
Net loss attributable to noncontrolling interests	7,625
Net earnings attributable to IAC shareholders	$	265,942

_____________________

(i) Includes stock-based compensation expense for stock-based awards granted to employees of Corporate, Search and all Emerging & Other businesses other than Vivian Health and Roofing.


	Year Ended December 31, 2022
	Operating (Loss) Income		Stock-Based Compensation Expense		Depreciation		Amortization of Intangibles		Acquisition-related Contingent Consideration Fair Value Arrangements		Goodwill Impairment		Adjusted EBITDA(h)
	(In thousands)
Dotdash Meredith
Digital(c)	$	(66,629)	$	20,596	$	27,569	$	205,772	$	(612)	$	—	$	186,696
Print(d)	(54,448)		1,023		12,620		71,940		—		—		31,135
Other(e)(g)	(67,014)		136		1,196		—		—		—		(65,682)
Total Dotdash Meredith	(188,091)		21,755		41,385		277,712		(612)		—		152,149
Angi Inc.
Ads and Leads	85,593		19,972		52,737		10,650		—		—		168,952
Services	(95,166)		18,012		21,904		3,124		—		—		(52,126)
Other(e)	(61,794)		11,928		—		—		—		—		(49,866)
International	(4,253)		890		2,882		—		—		—		(481)
Total Angi Inc.	(75,620)		50,802		77,523		13,774		—		—		66,479
Search	83,398		—		88		—		—		—		83,486
Emerging & Other	(156,839)		2,373		2,438		16,232		—		112,753		(23,043)
Corporate(i)	(137,619)		48,546		9,552		—		—		—		(79,521)
Total	(474,771)		$	123,476	$	130,986	$	307,718	$	(612)	$	112,753	$	199,550
Interest expense	(110,165)
Unrealized loss on investment in MGM Resorts International	(723,515)
Other expense, net	(217,785)
Loss from continuing operations before income taxes	(1,526,236)
Income tax benefit	331,087
Net loss from continuing operations	(1,195,149)
Earnings from discontinued operations, net of tax	2,694
Net loss	(1,192,455)
Net loss attributable to noncontrolling interests	22,285
Net loss attributable to IAC shareholders	$	(1,170,170)


	Year Ended December 31, 2021
	Operating Income (Loss)		Stock-Based Compensation Expense		Depreciation		Amortization of Intangibles		Acquisition-related Contingent Consideration Fair Value Adjustments		Adjusted EBITDA(h)
	(In thousands)
Dotdash Meredith
Digital(c)	$	73,980	$	1,438	$	4,257	$	11,512	$	(8)	$	91,179
Print	(6,527)		—		1,827		7,339		—		2,639
Other(e)(g)	(60,277)		—		81		—		—		(60,196)
Total Dotdash Meredith	7,176		1,438		6,165		18,851		(8)		33,622
Angi Inc.
Ads and Leads	65,485		12,722		46,025		12,028		—		136,260
Services	(63,984)		4,672		7,049		4,060		—		(48,203)
Other(e)	(56,196)		10,121		—		9		—		(46,066)
International	(13,222)		656		5,951		—		—		(6,615)
Total Angi Inc.	(67,917)		28,171		59,025		16,097		—		35,376
Search	108,334		—		47		—		—		108,381
Emerging & Other	(31,334)		632		1,683		39,891		15,000		25,872
Corporate(i)	(153,326)		49,246		8,095		—		—		(95,985)
Total	(137,067)		$	79,487	$	75,015	$	74,839	$	14,992	$	107,266
Interest expense	(34,264)
Unrealized gain on investment in MGM Resorts International	789,283
Other income, net	111,854
Earnings from continuing operations before income taxes	729,806
Income tax provision	(138,990)
Net earnings from continuing operations	590,816
Loss from discontinued operations, net of tax	(1,831)
Net earnings	588,985
Net loss attributable to noncontrolling interests	8,562
Net earnings attributable to IAC shareholders	$	597,547

The following table presents capital expenditures by reportable segment:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Capital expenditures:




Dotdash Meredith	$	10,370	$	12,885	$	4,823
Angi Inc.	47,780		115,479		69,909
Search	—		17		178
Emerging & Other	2,046		10,982		1,200
Corporate	81,168		390		14,100
Total	$	141,364	$	139,753	$	90,210

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-15

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 31
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-31

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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-Paragraph 32
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 40
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-40

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//280/tableOfContent

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Section 50
-Paragraph 26
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-26

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-34

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Section 50
-Paragraph 41
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-41

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-21

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-21

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

+ Details

EARNINGS (LOSS) PER SHARE

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

EARNINGS (LOSS) PER SHARE

The Company treats its common stock and Class B common stock as one class of stock for EPS purposes as both classes of stock participate in earnings, dividends and other distributions on the same basis. The restricted stock award granted to our CEO on November 5, 2020 is a participating security and the Company calculates basic EPS using the two-class method since those restricted shares are unvested and have a non-forfeitable dividend right in the event the Company declares a cash dividend on common shares and participate in all other distributions of the Company in the same manner as all other IAC common shares. Diluted EPS is calculated, on the most dilutive basis, which excludes awards that would be anti-dilutive, including the restricted stock award granted to our CEO.

Undistributed earnings allocated to the participating security is subtracted from earnings in determining earnings attributable to holders of IAC common stock and Class B common stock for basic EPS. Basic EPS is computed by dividing net earnings (loss) attributable to holders of IAC common stock and Class B common stock by the weighted-average number of shares of common stock and Class B common stock outstanding during the period.

For the calculation of diluted EPS, net earnings attributable to holders of IAC common stock and Class B common stock is adjusted for the impact from our public subsidiary's dilutive securities, if applicable, and the reallocation of undistributed earnings allocated to the participating security by the weighted-average number of common stock and Class B common stock outstanding plus dilutive securities during the period.

The numerator and denominator of basic and diluted EPS computations for the Company’s common stock and Class B common stock are calculated as follows:


	Years Ended December 31,
	2023		2022		2021
	(In thousands, except per share data)
Basic EPS:
Numerator:
Net earnings (loss) from continuing operations	$	258,317	$	(1,195,149)	$	590,816
Net loss attributable to noncontrolling interests of continuing operations	7,625		22,285		8,748
Net earnings attributed to unvested participating security	(9,216)		—		(20,160)
Net earnings (loss) from continuing operations attributable to IAC common stock and Class B common stock shareholders	256,726		(1,172,864)		579,404

Earnings (loss) from discontinued operations, net of taxes	—		2,694		(1,831)
Net earnings attributable to noncontrolling interests of discontinued operations	—		—		(186)
Net loss attributed to unvested participating security	—		—		68
Net earnings (loss) from discontinued operations attributable to IAC common stock and Class B common stock shareholders	—		2,694		(1,949)

Net earnings (loss) attributable to IAC common stock and Class B common stock shareholders	$	256,726	$	(1,170,170)	$	577,455

Denominator:
Weighted average basic IAC common stock and Class B common stock shares outstanding (a)	83,569		86,350		86,222

Earnings (loss) per share:
Earnings (loss) per share from continuing operations attributable to IAC common stock and Class B common stock shareholders	$	3.07	$	(13.58)	$	6.72
Earnings (loss) per share from discontinued operations, net of tax, attributable to IAC common stock and Class B common stock shareholders	—		0.03		(0.02)
Earnings (loss) per share attributable to IAC common stock and Class B common stock shareholders	$	3.07	$	(13.55)	$	6.70


	Years Ended December 31,
	2023		2022		2021
	(In thousands, except per share data)
Diluted EPS:
Numerator:
Net earnings (loss) from continuing operations	$	258,317	$	(1,195,149)	$	590,816
Net loss attributable to noncontrolling interests of continuing operations	7,625		22,285		8,748
Net earnings attributed to unvested participating security	(8,918)		—		(18,981)
Impact from public subsidiaries' dilutive securities (b)	—		—		406
Net earnings (loss) from continuing operations attributable to IAC common stock and Class B common stock shareholders	257,024		(1,172,864)		580,989

Earnings (loss) from discontinued operations, net of taxes	—		2,694		(1,831)
Net earnings attributable to noncontrolling interests of discontinued operations	—		—		(186)
Net loss attributed to unvested participating security	—		—		64
Net earnings (loss) from discontinued operations attributable to IAC common stock and Class B common stock shareholders	—		2,694		(1,953)

Net earnings (loss) attributable to IAC common stock and Class B common stock shareholders	$	257,024	$	(1,170,170)	$	579,036


Denominator:
Weighted average basic IAC common stock and Class B common stock shares outstanding (a)	83,569		86,350		86,222
Dilutive securities (b)(c)(d)(e)	2,895		—		5,606
Denominator for earnings per share—weighted average shares (b)(c)(d)(e)	86,464		86,350		91,828

Earnings (loss) per share:
Earnings (loss) per share from continuing operations attributable to IAC common stock and Class B common stock shareholders	$	2.97	$	(13.58)	$	6.33
Earnings (loss) per share from discontinued operations, net of tax, attributable to IAC common stock and Class B common stock shareholders	—		0.03		(0.02)
Earnings (loss) per share attributable to IAC common stock and Class B common stock shareholders	$	2.97	$	(13.55)	$	6.31

_____________________

(a) On November 5, 2020, IAC's CEO was granted a stock-based award in the form of 3.0 million shares of restricted common stock. The number of shares that ultimately vests is subject to the satisfaction of growth targets in IAC's stock price over the 10-year service condition of the award. These restricted shares have a non-forfeitable dividend right in the event the Company declares a cash dividend on its common shares and participate in all other distributions of the Company in the same manner as all other IAC common shares. Accordingly, the two-class method of calculating EPS is used. While the restricted shares are presented as outstanding shares in the balance sheet, these shares are excluded from the weighted average shares outstanding in calculating basic EPS and the allocable portion of net earnings are also excluded. Fully diluted EPS reflects the impact on earnings and fully diluted shares in the manner that is most dilutive.

(b) IAC has the option to settle certain Angi Inc. stock-based awards in its shares. The impact on net earnings relates to the settlement of Angi Inc.'s dilutive securities in IAC common shares. For the years ended December 31, 2023 and 2022, these Angi Inc. equity awards were anti-dilutive. For the year ended December 31, 2021 it was more dilutive for IAC to settle these Angi Inc. equity awards.

(c) If the effect is dilutive, weighted average common shares outstanding include the incremental shares that would be issued upon the assumed exercise of stock options and subsidiary denominated equity and vesting of restricted common stock, restricted stock units ("RSUs") and market-based awards ("MSUs"). For the years ended December 31, 2023 and 2021, 3.6 million and 3.0 million, respectively, of potentially dilutive securities were excluded from the calculation of diluted EPS because their inclusion would have been anti-dilutive.

(d) For the year ended December 31, 2022, the Company had a loss from continuing operations and, as a result, approximately 7.9 million potentially dilutive securities were excluded from computing diluted EPS because the impact would have been anti-dilutive. Accordingly, the weighted average basic shares outstanding were used to compute the EPS amounts for the year ended December 31, 2022.

(e) See "Note 12—Stock-Based Compensation" for additional information on the grant of IAC restricted common stock to its CEO and equity instruments denominated in the shares of certain subsidiaries.

EARNINGS (LOSS) PER SHARE (Tables)

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Share

The numerator and denominator of basic and diluted EPS computations for the Company’s common stock and Class B common stock are calculated as follows:


	Years Ended December 31,
	2023		2022		2021
	(In thousands, except per share data)
Basic EPS:
Numerator:
Net earnings (loss) from continuing operations	$	258,317	$	(1,195,149)	$	590,816
Net loss attributable to noncontrolling interests of continuing operations	7,625		22,285		8,748
Net earnings attributed to unvested participating security	(9,216)		—		(20,160)
Net earnings (loss) from continuing operations attributable to IAC common stock and Class B common stock shareholders	256,726		(1,172,864)		579,404

Earnings (loss) from discontinued operations, net of taxes	—		2,694		(1,831)
Net earnings attributable to noncontrolling interests of discontinued operations	—		—		(186)
Net loss attributed to unvested participating security	—		—		68
Net earnings (loss) from discontinued operations attributable to IAC common stock and Class B common stock shareholders	—		2,694		(1,949)

Net earnings (loss) attributable to IAC common stock and Class B common stock shareholders	$	256,726	$	(1,170,170)	$	577,455

Denominator:
Weighted average basic IAC common stock and Class B common stock shares outstanding (a)	83,569		86,350		86,222

Earnings (loss) per share:
Earnings (loss) per share from continuing operations attributable to IAC common stock and Class B common stock shareholders	$	3.07	$	(13.58)	$	6.72
Earnings (loss) per share from discontinued operations, net of tax, attributable to IAC common stock and Class B common stock shareholders	—		0.03		(0.02)
Earnings (loss) per share attributable to IAC common stock and Class B common stock shareholders	$	3.07	$	(13.55)	$	6.70


	Years Ended December 31,
	2023		2022		2021
	(In thousands, except per share data)
Diluted EPS:
Numerator:
Net earnings (loss) from continuing operations	$	258,317	$	(1,195,149)	$	590,816
Net loss attributable to noncontrolling interests of continuing operations	7,625		22,285		8,748
Net earnings attributed to unvested participating security	(8,918)		—		(18,981)
Impact from public subsidiaries' dilutive securities (b)	—		—		406
Net earnings (loss) from continuing operations attributable to IAC common stock and Class B common stock shareholders	257,024		(1,172,864)		580,989

Earnings (loss) from discontinued operations, net of taxes	—		2,694		(1,831)
Net earnings attributable to noncontrolling interests of discontinued operations	—		—		(186)
Net loss attributed to unvested participating security	—		—		64
Net earnings (loss) from discontinued operations attributable to IAC common stock and Class B common stock shareholders	—		2,694		(1,953)

Net earnings (loss) attributable to IAC common stock and Class B common stock shareholders	$	257,024	$	(1,170,170)	$	579,036


Denominator:
Weighted average basic IAC common stock and Class B common stock shares outstanding (a)	83,569		86,350		86,222
Dilutive securities (b)(c)(d)(e)	2,895		—		5,606
Denominator for earnings per share—weighted average shares (b)(c)(d)(e)	86,464		86,350		91,828

Earnings (loss) per share:
Earnings (loss) per share from continuing operations attributable to IAC common stock and Class B common stock shareholders	$	2.97	$	(13.58)	$	6.33
Earnings (loss) per share from discontinued operations, net of tax, attributable to IAC common stock and Class B common stock shareholders	—		0.03		(0.02)
Earnings (loss) per share attributable to IAC common stock and Class B common stock shareholders	$	2.97	$	(13.55)	$	6.31

_____________________

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Fair Value of Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Marketable equity securities	$ 0	$ 4,317
Available for sale marketable debt securities	148,998	235,056
Total marketable securities	$ 148,998	$ 239,373

PENSION AND POSTRETIREMENT BENEFIT PLANS - Amount Recognized in the Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
United States \| Pension
Defined Benefit Plan Disclosure [Line Items]
Other current assets	$ 0	$ 0
Other non-current assets	10,225	9,561
Accrued expenses and other current liabilities	(1,430)	(698)
Other long-term liabilities	(3,509)	(3,652)
Net amount recognized	5,286	5,211
United States \| Post-Retirement
Defined Benefit Plan Disclosure [Line Items]
Other current assets	0	0
Other non-current assets	0	0
Accrued expenses and other current liabilities	(433)	(475)
Other long-term liabilities	(3,815)	(3,998)
Net amount recognized	(4,248)	(4,473)
International \| Pension
Defined Benefit Plan Disclosure [Line Items]
Other current assets	4,850	0
Other non-current assets	0	4,358
Accrued expenses and other current liabilities	(4,418)	(127)
Other long-term liabilities	0	(4,169)
Net amount recognized	$ 432	$ 62

LONG-TERM DEBT

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

LONG-TERM DEBT

Long-term debt consists of:


	December 31,
	2023		2022
	(In thousands)
Dotdash Meredith Debt
Dotdash Meredith Term Loan A ("Dotdash Meredith Term Loan A") due December 1, 2026	$	315,000	$	332,500
Dotdash Meredith Term Loan B ("Dotdash Meredith Term Loan B") due December 1, 2028	1,225,000		1,237,500
Total Dotdash Meredith long-term debt	1,540,000		1,570,000
Less: current portion of Dotdash Meredith long-term debt	30,000		30,000
Less: original issue discount	4,470		5,310
Less: unamortized debt issuance costs	8,423		10,215
Total Dotdash Meredith long-term debt, net	1,497,107		1,524,475

ANGI Group Debt
3.875% ANGI Group Senior Notes due August 15, 2028 ("ANGI Group Senior Notes"); interest payable each February 15 and August 15	500,000		500,000

Less: unamortized debt issuance costs	3,953		4,716
Total ANGI Group long-term debt, net	496,047		495,284

Total long-term debt, net	$	1,993,154	$	2,019,759

Dotdash Meredith Term Loans and Dotdash Meredith Revolving Facility

On December 1, 2021, Dotdash Meredith entered into a credit agreement ("Dotdash Meredith Credit Agreement"), which provides for (i) the five-year $350 million Dotdash Meredith Term Loan A, (ii) the seven-year $1.25 billion Dotdash Meredith Term Loan B (and together with the Dotdash Meredith Term Loan A, the "Dotdash Meredith Term Loans") and (iii) a five-year $150 million revolving credit facility ("Dotdash Meredith Revolving Facility"). The Dotdash Meredith Term Loan A bears interest at Adjusted Term SOFR as defined in the Dotdash Meredith Credit Agreement plus an applicable margin depending on Dotdash Meredith's most recently reported consolidated net leverage ratio, as defined in the Dotdash Meredith Credit Agreement. The adjustment to the secured overnight financing rate is fixed at 0.10% for the Dotdash Meredith Term Loan A. The Dotdash Meredith Term Loan B has a varying adjustment of 0.10%, 0.15% or 0.25% based upon the duration of the borrowing period. At December 31, 2023 and 2022, the Dotdash Meredith Term Loan A bore interest at Adjusted Term SOFR plus 2.25%, or 7.69% and 5.91%, respectively, and the Dotdash Meredith Term Loan B bore interest at Adjusted Term SOFR, subject to a minimum of 0.50%, plus 4.00%, or 9.44% and 8.22%, respectively. Interest payments are due at least quarterly through the terms of the Dotdash Meredith Term Loans.

In March 2023, Dotdash Meredith entered into interest rate swaps on the Dotdash Meredith Term Loan B for a total notional amount of $350 million with a maturity date of April 1, 2027. The interest rate swaps synthetically converted $350 million of the Dotdash Meredith Term Loan B for the duration of the interest rate swaps from a variable rate to a fixed rate of approximately 7.92% ((i) the weighted average fixed interest rate of approximately 3.82% on the interest rate swaps plus (ii) the adjustment to the secured overnight financing rate of 0.10% plus (iii) the base rate of 4.00%), beginning on April 3, 2023.

The interest rate swaps are expected to be highly effective. See "Note 9—Accumulated Other Comprehensive (Loss) Income" for the net unrealized gains before reclassifications in "Accumulated other comprehensive loss" and realized gains reclassified into “Interest expense” for the year ended December 31, 2023. At December 31, 2023, approximately $3.0 million is expected to be reclassified into interest expense within the next twelve months as realized gains. The related liability of $0.9 million is included in “Other long-term liabilities” in the balance sheet at December 31, 2023.

The Dotdash Meredith Term Loan A requires quarterly principal payments of approximately $4.4 million through December 31, 2024, $8.8 million through December 31, 2025 and approximately $13.1 million thereafter through maturity. The Dotdash Meredith Term Loan B requires quarterly payments of $3.1 million through maturity. The Dotdash Meredith Term Loan B may require additional annual principal payments as part of an excess cash flow sweep provision, the amount of which, in part, is governed by the applicable net leverage ratio and further subject to the excess cash flow exceeding $80.0 million as defined in the Dotdash Meredith Credit Agreement. No such payment is currently expected related to the period ended December 31, 2023 and no such payment was required related to the period ended December 31, 2022.

There were no outstanding borrowings under the Dotdash Meredith Revolving Facility at December 31, 2023 and 2022. The annual commitment fee on undrawn funds is based on Dotdash Meredith's consolidated net leverage ratio, as defined in the Dotdash Meredith Credit Agreement, most recently reported and was 40 basis points at both December 31, 2023 and 2022. Any borrowings under the Dotdash Meredith Revolving Facility would bear interest, at Dotdash Meredith's option, at either a base rate or Adjusted Term SOFR, plus an applicable margin, which is based on Dotdash Meredith's consolidated net leverage ratio.

As of the last day of any calendar quarter, if either (i) $1.00 or more of loans under the Dotdash Meredith Revolving Facility or Dotdash Meredith Term Loan A are outstanding, or (ii) the outstanding face amount of undrawn letters of credit, other than cash collateralized letters of credit at 102% of face value, exceeds $25 million, subject to certain increases for qualifying material acquisitions, then Dotdash Meredith will not permit the consolidated net leverage ratio, which permits netting of up to $250 million in cash and cash equivalents, as of the last day of such quarter to exceed 5.5 to 1.0. The Dotdash Meredith Credit Agreement also contains covenants that would limit Dotdash Meredith’s ability to pay dividends, incur incremental secured indebtedness, or make distributions or certain investments in the event a default has occurred or if Dotdash Meredith’s consolidated net leverage ratio exceeds 4.0 to 1.0, subject to certain available amounts as defined in the Dotdash Meredith Credit Agreement. This ratio was exceeded for both test periods ended December 31, 2023 and 2022. The Dotdash Meredith Credit Agreement also permits the Company to, among other things, contribute cash to Dotdash Meredith which will provide additional liquidity to ensure that Dotdash Meredith does not exceed certain consolidated net leverage ratios for any test period, as further defined in the Dotdash Meredith Credit Agreement. In connection with these capital contributions, Dotdash Meredith may make distributions to the Company in amounts not more than any such capital contributions, provided that no default has occurred and is continuing. Such capital contributions and subsequent distributions impact the consolidated net leverage ratios of Dotdash Meredith. During the year ended December 31, 2023, the Company contributed $510.0 million to Dotdash Meredith and Dotdash Meredith subsequently distributed back to the Company $405.0 million during the year ended December 31, 2023 and $105.0 million in January 2024.

The obligations under the Dotdash Meredith Credit Agreement are guaranteed by certain of Dotdash Meredith's wholly-owned subsidiaries, and are secured by substantially all of the assets of Dotdash Meredith and certain of its subsidiaries.

ANGI Group Debt

ANGI Group, LLC ("ANGI Group") a direct wholly-owned subsidiary of Angi Inc., issued the ANGI Group Senior Notes on August 20, 2020. These notes may be redeemed at the redemption prices set forth below, plus accrued and unpaid interest thereon, if any, to the applicable redemption date, if redeemed during the twelve-month period beginning on August 15 of the years indicated below:


Year	Percentage
2023	101.938	%
2024	100.969	%
2025 and thereafter	100.000	%

The indenture governing the ANGI Group Senior Notes contains a covenant that would limit ANGI Group’s ability to incur liens for borrowed money in the event a default has occurred or ANGI Group’s secured leverage ratio exceeds 3.75 to 1.0 provided that ANGI Group is permitted to incur such liens under certain permitted credit facilities indebtedness notwithstanding the ratio, all as defined in the indenture. At December 31, 2023, there were no limitations pursuant thereto.

The $250 million ANGI Group Revolving Facility, which otherwise would have expired on November 5, 2023, was terminated effective August 3, 2021. No amounts were ever drawn under the ANGI Group Revolving Facility prior to its termination.

During 2021, ANGI Group prepaid the remaining balance of $220.0 million of the ANGI Group Term Loan principal, which otherwise would have matured on November 5, 2023.

Long-term Debt Maturities:

Long-term debt maturities at December 31, 2023 are summarized in the table below:


Years Ending December 31,	(In thousands)
2024	$	30,000
2025	47,500
2026	275,000
2027	12,500
2028	1,675,000

Total	2,040,000
Less: current portion of long-term debt	30,000
Less: unamortized original issue discount	4,470
Less: unamortized debt issuance costs	12,376
Total long-term debt, net	$	1,993,154

GOODWILL AND INTANGIBLE ASSETS - Narrative (Details)	3 Months Ended				12 Months Ended
GOODWILL AND INTANGIBLE ASSETS - Narrative (Details)	Dec. 31, 2023 USD ($) segment	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($) segment	Jun. 30, 2022 USD ($)	Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Goodwill [Line Items]
Goodwill impairment					$ 9,000,000	$ 112,753,000	$ 0
Goodwill	$ 3,024,266,000		$ 3,030,168,000		3,024,266,000	3,030,168,000	3,226,610,000
Amortization of intangibles					295,970,000	307,718,000	74,839,000
Angi Inc.
Goodwill [Line Items]
Number of operating segments \| segment	3		4
Goodwill impairment					0	0
Goodwill	$ 886,383,000		$ 883,285,000		886,383,000	883,285,000	916,375,000
Angi Inc. \| Ads and Leads
Goodwill [Line Items]
Goodwill impairment					0	0
Goodwill	761,571,000		761,571,000		761,571,000	761,571,000	0
Angi Inc. \| Ads and Leads \| Service professional relationships
Goodwill [Line Items]
Amortization of intangibles					90,500,000
Emerging & Other
Goodwill [Line Items]
Goodwill impairment					9,000,000	112,753,000
Goodwill	640,241,000		649,241,000		640,241,000	649,241,000	742,392,000
Emerging & Other \| Mosaic Group
Goodwill [Line Items]
Goodwill impairment		$ 9,000,000		$ 86,700,000		86,700,000
Emerging & Other \| Roofing
Goodwill [Line Items]
Goodwill impairment						26,000,000
Search
Goodwill [Line Items]
Goodwill impairment					0	0
Goodwill	0		0		$ 0	0	0
Dotdash Meredith
Goodwill [Line Items]
Number of operating segments \| segment					2
Goodwill impairment					$ 0	0
Goodwill	$ 1,497,642,000		$ 1,497,642,000		1,497,642,000	$ 1,497,642,000	$ 1,567,843,000
Dotdash Meredith \| Subscriber relationships
Goodwill [Line Items]
Amortization of intangibles					$ 61,200,000

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Goodwill and Indefinite-Lived Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
	Oct. 01, 2023	Sep. 30, 2023	Jun. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Line Items]
Goodwill impairment				$ 9,000	$ 112,753	$ 0
Carrying amount of goodwill for which excess of fair value over carrying value is less than 20%				1,600,000
Impairment charges on indefinite-lived intangible assets	$ 79,900	$ 7,600
Carrying amount of indefinite-lived intangible assets for which excess of fair value over carrying value is less than 20%				$ 303,700
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]				Amortization of intangibles
Discount Rate \| Indefinite-lived Intangible Assets \| Minimum
Goodwill [Line Items]
Indefinite-lived impairment measurement input (as a percent)				15.00%	12.00%
Discount Rate \| Indefinite-lived Intangible Assets \| Maximum
Goodwill [Line Items]
Indefinite-lived impairment measurement input (as a percent)				17.00%	18.50%
Discount Rate \| Trade names
Goodwill [Line Items]
Indefinite-lived impairment measurement input (as a percent)	15.50%	16.00%
Royalty Rate \| Indefinite-lived Intangible Assets \| Minimum
Goodwill [Line Items]
Measurement input (as a percent)				0.02	0.01
Royalty Rate \| Indefinite-lived Intangible Assets \| Maximum
Goodwill [Line Items]
Measurement input (as a percent)				0.08	0.08
Royalty Rate \| Trade names
Goodwill [Line Items]
Indefinite-lived impairment measurement input (as a percent)	6.00%	8.00%
Emerging & Other
Goodwill [Line Items]
Goodwill impairment				$ 9,000	$ 112,753
Emerging & Other \| Mosaic Group
Goodwill [Line Items]
Goodwill impairment		$ 9,000	$ 86,700		$ 86,700
Emerging & Other \| Mosaic Group \| Discount Rate
Goodwill [Line Items]
Goodwill measurement input (as a percent)				16.00%	16.00%
Emerging & Other \| Roofing
Goodwill [Line Items]
Goodwill impairment					$ 26,000
Emerging & Other \| Roofing \| Discount Rate
Goodwill [Line Items]
Goodwill measurement input (as a percent)					16.00%
Emerging & Other \| Care.com \| Discount Rate
Goodwill [Line Items]
Goodwill measurement input (as a percent)				16.00%
Dotdash Meredith
Goodwill [Line Items]
Goodwill impairment				$ 0	$ 0
Dotdash Meredith \| Discount Rate
Goodwill [Line Items]
Goodwill measurement input (as a percent)				15.50%

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Realized and Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Adjustments to the Carrying Value of Equity Securities Without Readily Determinable Fair Values
Upward adjustments (gross unrealized pre-tax gains)	$ 2,227	$ 8,245
Downward adjustments including impairments (gross unrealized pre-tax losses)	(22,463)	(97,382)
Total	(20,236)	(89,137)
Equity Securities without Readily Determinable Fair Values, Realized and Unrealized Gains (Losses)
Realized pre-tax gains, net, for equity securities sold	89	12,434	$ 5,773
Unrealized pre-tax (losses) gains, net, on equity securities held	(20,236)	(89,137)	8,892
Total pre-tax (losses) gains, net recognized	$ (20,147)	$ (76,703)	$ 14,665

GOODWILL AND INTANGIBLE ASSETS - Expected Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
2024	$ 133,662
2025	84,475
2026	69,057
2027	15,142
2028	5,519
Thereafter	22,622
Total	$ 330,477	$ 538,944

BUSINESS COMBINATION (Tables)

12 Months Ended

Dec. 31, 2023

Business Combination and Asset Acquisition [Abstract]

Schedule of Pro Forma Financial Information

The unaudited pro forma financial information in the table below presents the results of the Company and Meredith, as if this acquisition had occurred on January 1, 2020. The unaudited pro forma financial information includes adjustments required under the acquisition method of accounting and is presented for informational purposes only and is not necessarily indicative of the results that would have been achieved had this acquisition occurred on January 1, 2020. For the year ended December 31, 2021, pro forma adjustments include an increase in amortization expense of $135.9 million, related to intangible asset adjustments in purchase accounting. To present transaction-related costs in the beginning of the earliest comparative period presented, pro forma adjustments include a reduction in transaction-related costs of $130.8 million for the year ended December 31, 2021.


	Year Ended December 31,
	2021
	(In thousands, except per share data)
Revenue	$	5,599,334
Net earnings from continuing operations	$	650,189
Basic earnings per share from continuing operations	$	7.39
Diluted earnings per share from continuing operations	$	6.95
Net earnings attributable to IAC shareholders	$	656,920
Basic earnings per share attributable to IAC shareholders	$	7.36
Diluted earnings per share attributable to IAC shareholders	$	6.93

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Interest Rate Risk (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Long-term debt, net	$ 1,993,154	$ 2,019,759
Unrealized Losses On Interest Rate Swaps including portion attributable to Noncontrolling Interest
Derivative [Line Items]
Gains (losses) reclassified to earnings	3,654
Dotdash Meredith
Derivative [Line Items]
Long-term debt, net	1,497,107	1,524,475
Long-term debt, gross	1,540,000	$ 1,570,000
Interest rate swaps \| Dotdash Meredith \| Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Derivative [Line Items]
Impact of 100 basis point increase or decrease of basis spread on variable rate	11,900
Dotdash Meredith Term Loan B Facility \| Term Loan
Derivative [Line Items]
Long-term debt, gross	$ 1,200,000
Stated interest rate (as a percent)	9.44%	8.22%
Dotdash Meredith Term Loan B Facility \| Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Derivative [Line Items]
Adjustment to interest rate	0.10%
Basis spread on variable rate (as a percent)	4.00%
Dotdash Meredith Term Loan B Facility \| Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Minimum
Derivative [Line Items]
Basis spread on variable rate (as a percent)	0.50%
Dotdash Meredith Term Loan B Facility \| Dotdash Meredith \| Term Loan
Derivative [Line Items]
Long-term debt, gross	$ 1,225,000	$ 1,237,500
Dotdash Meredith Term Loan B Facility \| Interest rate swaps \| Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Derivative [Line Items]
Adjustment to interest rate	1.33%
Dotdash Meredith Term Loan B Facility \| Interest rate swaps \| Dotdash Meredith
Derivative [Line Items]
Notional amount	$ 350,000
Increase in interest expense	$ 13,100
Stated interest rate (as a percent)	7.92%
Dotdash Meredith Term Loan B Facility \| Interest rate swaps \| Dotdash Meredith \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Derivative [Line Items]
Adjustment to interest rate	0.10%
Dotdash Meredith Term Loan A Facility \| Term Loan
Derivative [Line Items]
Long-term debt, gross	$ 315,000
Stated interest rate (as a percent)	7.69%	5.91%
Dotdash Meredith Term Loan A Facility \| Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Derivative [Line Items]
Adjustment to interest rate	0.10%
Basis spread on variable rate (as a percent)	2.25%
Dotdash Meredith Term Loan A Facility \| Dotdash Meredith \| Term Loan
Derivative [Line Items]
Long-term debt, gross	$ 315,000	$ 332,500

INCOME TAXES

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

INCOME TAXES

U.S. and foreign earnings (loss) before income taxes and noncontrolling interests are as follows:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
U.S.	$	353,188	$	(1,320,332)	$	758,538
Foreign	13,947		(205,904)		(28,732)
Total	$	367,135	$	(1,526,236)	$	729,806

The components of the income tax provision (benefit) are as follows:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Current income tax provision (benefit):
Federal	$	1,474	$	777	$	(5,818)
State	8,998		4,712		4,751
Foreign	9,554		1,182		6,680
Current income tax provision (benefit)	20,026		6,671		5,613

Deferred income tax provision (benefit):
Federal	79,941		(252,022)		111,755
State	9,153		(44,335)		18,063
Foreign	(302)		(41,401)		3,559
Deferred income tax provision (benefit)	88,792		(337,758)		133,377
Income tax provision (benefit)	$	108,818	$	(331,087)	$	138,990


	December 31,
	2023		2022
	(In thousands)
Deferred tax assets:
Net operating loss carryforwards	$	435,318	$	458,603
Long-term lease liabilities	112,178		137,869
Capitalized research & development expenditures	91,550		74,179
Tax credit carryforwards	72,369		64,903
Accrued expenses	53,551		58,697
Other	101,356		104,948
Total deferred tax assets	866,322		899,199
Less: valuation allowance	(132,058)		(124,012)
Net deferred tax assets	734,264		775,187

Deferred tax liabilities:
Investment in MGM Resorts International	(383,170)		(212,390)
Investment in subsidiaries	(226,898)		(225,375)
Intangible assets, net of accumulated amortization	(174,933)		(219,856)
Right-of-use assets	(71,531)		(100,643)
Capitalized software, equipment, buildings, land and leasehold improvements, net	(13,639)		(46,740)
Other	(27,029)		(44,922)
Total deferred tax liabilities	(897,200)		(849,926)
Net deferred tax liabilities	$	(162,936)	$	(74,739)

At December 31, 2023, the Company had U.S. federal and state net operating losses ("NOLs") of $1.4 billion and $1.1 billion, respectively, available to offset future income. Federal NOLs of $1.3 billion can be carried forward indefinitely and $0.1 billion, if not utilized, will expire at various times between 2031 and 2035. State NOLs of $0.1 billion can be carried forward indefinitely and $1.0 billion, if not utilized, will expire at various times between 2024 and 2043. Federal and state NOLs of $1.2 billion and $0.8 billion, respectively, can be used against future taxable income without restriction and the remaining NOLs will be subject to limitations under Section 382 of the Internal Revenue Code, separate return limitations, and applicable law. At December 31, 2023, the Company had foreign NOLs of $439.0 million available to offset future income. Of these foreign NOLs, $425.7 million can be carried forward indefinitely and $13.3 million, if not utilized, will expire at various times between 2025 and 2043. During 2023, the Company recognized tax benefits related to NOLs of $1.5 million.

At December 31, 2023, the Company had tax credit carryforwards of $91.9 million. Of this amount, $80.8 million relates to credits for research activities, $9.2 million relates to credits for foreign taxes, and $1.9 million relates to various other credits. Of these credit carryforwards, $14.0 million can be carried forward indefinitely and $77.9 million, if not utilized, will expire between 2024 and 2043.

During 2023, the Company's valuation allowance increased by $8.0 million primarily due to a net increase in unbenefited capital losses and foreign NOLs, partially offset by expiring foreign tax credits. At December 31, 2023, the Company had a valuation allowance of $132.1 million related to the portion of tax loss carryforwards, tax credits and other items for which it is more likely than not that the tax benefit will not be realized.

A reconciliation of the income tax provision (benefit) to the amounts computed by applying the statutory federal income tax rate to earnings before income taxes is shown as follows:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Income tax provision (benefit) at the federal statutory rate of 21%	$	77,098	$	(320,510)	$	153,259
State income taxes, net of effect of federal tax benefit	12,542		(26,708)		24,289
Research credit	(11,973)		(19,041)		(5,094)
Non-deductible executive compensation	10,383		12,359		22,358
Stock-based compensation	2,357		(2,155)		(91,729)
Non-deductible goodwill impairment	1,659		15,764		—


Deferred tax adjustment for enacted changes in tax laws and rates	407		(7,152)		4,049
Change in judgement on beginning of the year valuation allowance	(240)		3,523		20,248


Other, net	16,585		12,833		11,610
Income tax provision (benefit)	$	108,818	$	(331,087)	$	138,990

A reconciliation of the beginning and ending amount of unrecognized tax benefits, including penalties but excluding interest, is as follows:


	December 31,
	2023		2022		2021
	(In thousands)
Balance at January 1	$	16,013	$	17,449	$	18,233
Additions for tax positions related to the current year	5,187		5,557		2,855
Settlements	(2,505)		(7,100)		(1,427)
Additions for tax positions of prior years	1,008		1,715		3,420
Reductions for tax positions of prior years	(701)		(1,608)		(1,116)
Expiration of applicable statutes of limitations	—		—		(4,516)
Balance at December 31	$	19,002	$	16,013	$	17,449

The Company's income taxes are routinely under audit by federal, state, local and foreign authorities as a result of previously filed separate company and consolidated tax returns for periods prior to the June 30, 2020 separation of IAC from Match Group and for its tax returns filed on a standalone basis following the MTCH Separation. These audits include questioning the timing and the amount of income and deductions and the allocation of income and deductions among various tax jurisdictions. On June 27, 2023, the Joint Committee of Taxation completed its review of the federal income tax returns for the years ended December 31, 2013 through 2019, which includes the operations of the Company, and approved the audit settlement previously agreed to with the Internal Revenue Services ("IRS"). The statute of limitations for the years 2013 through 2019 expired on December 31, 2023. The resolution of this IRS examination resulted in a payment to Match Group of $2.5 million excluding interest, which was previously accrued. Returns filed in various other jurisdictions are open to examination for tax years beginning with 2013. Income taxes payable include unrecognized tax benefits considered sufficient to pay assessments that may result from the examination of prior year tax returns. The Company considers many factors when evaluating and estimating its tax positions and tax benefits, which may not accurately anticipate actual outcomes and, therefore, may require periodic adjustment. Although management currently believes changes in unrecognized tax benefits from period to period and differences between amounts paid, if any, upon resolution of issues raised in audits and amounts previously provided will not have a material impact on the liquidity, results of operations, or financial condition of the Company, these matters are subject to inherent uncertainties and management’s view of these matters may change in the future.

The Company recognizes interest and, if applicable, penalties related to unrecognized tax benefits in the income tax provision. At December 31, 2023 and 2022, accruals for interest and penalties are not material.

At December 31, 2023 and 2022, unrecognized tax benefits, including interest and penalties, were $19.6 million and $16.6 million, respectively. Unrecognized tax benefits, including interest and penalties, at December 31, 2023 increased by $3.0 million due primarily to research credits, partially offset by settlements. If unrecognized tax benefits at December 31, 2023 are subsequently recognized, $18.6 million, net of related deferred tax assets and interest, would reduce income tax expense. The comparable amount at December 31, 2022 was $15.4 million. The Company believes that it is reasonably possible that its unrecognized tax benefits could decrease by $0.4 million by December 31, 2024 due to expected settlements and statute expirations, all of which would reduce the income tax provision.

As a result of the Vimeo Spin-Off, the Company’s net deferred tax liability was adjusted for tax attributes from our federal and consolidated state income tax filings that were allocated between the Company and Vimeo. The allocation of tax attributes that was recorded as of December 31, 2021 was preliminary. Following the filing of income tax returns for the year ended December 31, 2021, the allocation was finalized and an adjustment of $2.7 million was recorded to net earnings from discontinued operations in the year ended December 31, 2022.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
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-URI https://asc.fasb.org//1943274/2147480990/946-20-50-13

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+ Details

ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME - Summary (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period	$ 6,572,534	$ 7,748,960	$ 7,150,928
Total other comprehensive income (loss), net of income taxes	2,699	(18,776)	10,464
Balance at end of period	6,755,003	6,572,534	7,748,960
Tax provision (benefit) on accumulated other comprehensive loss			0
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period	(13,186)	4,397	(6,172)
Balance at end of period	(10,266)	(13,186)	4,397
Foreign Currency Translation Adjustment including portion attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss)
Other comprehensive income (loss) before reclassifications	2,915	(17,636)	527
Amounts reclassified to earnings	0	42	10,032
Total other comprehensive income (loss), net of income taxes	2,915	(17,594)	10,559
Foreign Currency Translation Adjustment attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss)
Total other comprehensive income (loss), net of income taxes	5	11	10
Unrealized Losses On Interest Rate Swaps
Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period	0
Balance at end of period	(696)	0
Tax provision (benefit) on accumulated other comprehensive loss	(200)
Unrealized Losses On Interest Rate Swaps including portion attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss)
Other comprehensive income (loss) before reclassifications	2,958
Amounts reclassified to earnings	(3,654)
Total other comprehensive income (loss), net of income taxes	(696)
Unrealized Losses On Interest Rate Swaps attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss)
Total other comprehensive income (loss), net of income taxes	0
Unrealized Gains (Losses) On Available-For-Sale Marketable Debt Securities
Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period	53	0	2
Balance at end of period	20	53	0
Tax provision (benefit) on accumulated other comprehensive loss	100	100
Unrealized Gains on Available-for-Sale Debt Securities including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss)
Other comprehensive income (loss) before reclassifications	(33)	53	(2)
Amounts reclassified to earnings	0	0	0
Total other comprehensive income (loss), net of income taxes	(33)	53	(2)
Unrealized Gains on Available-for-Sale Debt Securities attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss)
Total other comprehensive income (loss), net of income taxes	0	0	0
Accumulated Other Comprehensive (Loss) Income
Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period	(13,133)	4,397	(6,170)
Balance at end of period	(10,942)	(13,133)	4,397
Accumulated Other Comprehensive Income (Loss) including portion attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss)
Other comprehensive income (loss) before reclassifications	5,840	(17,583)	525
Amounts reclassified to earnings	(3,654)	42	10,032
Total other comprehensive income (loss), net of income taxes	2,186	(17,541)	10,557
Accumulated Other Comprehensive Income (Loss) attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss)
Total other comprehensive income (loss), net of income taxes	$ 5	$ 11	$ 10

CONSOLIDATED BALANCE SHEET - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
ASSETS
Cash and cash equivalents	$ 1,297,445	$ 1,417,390
Marketable securities	148,998	239,373
Accounts receivable, net	536,650	607,809
Other current assets	257,499	296,563
Total current assets	2,240,592	2,561,135
Capitalized software, equipment, buildings, land and leasehold improvements, net	455,281	510,614
Goodwill	3,024,266	3,030,168
Intangible assets, net of accumulated amortization	874,705	1,170,041
Investment in MGM Resorts International	2,891,850	2,170,182
Long-term investments	411,216	325,721
Other non-current assets	473,267	625,774
TOTAL ASSETS	10,371,177	10,393,635
LIABILITIES:
Current portion of long-term debt	30,000	30,000
Accounts payable, trade	105,514	133,105
Deferred revenue	143,449	157,124
Accrued expenses and other current liabilities	671,527	759,759
Total current liabilities	950,490	1,079,988
Long-term debt, net	1,993,154	2,019,759
Deferred income taxes	164,612	76,276
Other long-term liabilities	474,540	617,843
Redeemable noncontrolling interests	33,378	27,235
Commitments and contingencies
SHAREHOLDERS' EQUITY:
Additional paid-in capital	6,340,312	6,295,080
Retained earnings (accumulated deficit)	923	(265,019)
Accumulated other comprehensive loss	(10,942)	(13,133)
Treasury stock, 4,350 and 1,101 shares at December 31, 2023 and 2022, respectively	(252,441)	(85,323)
Total IAC shareholders' equity	6,077,861	5,931,614
Noncontrolling interests	677,142	640,920
Total shareholders' equity	6,755,003	6,572,534
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	10,371,177	10,393,635
Common Stock, $0.0001 par value; authorized 1,600,000 shares; 84,465 and 84,184 shares issued and 80,115 and 83,083 shares outstanding at December 31, 2023 and 2022, respectively
SHAREHOLDERS' EQUITY:
Common stock, value	8	8
Class B common stock, $0.0001 par value; authorized 400,000 shares; 5,789 shares issued and outstanding at December 31, 2023 and 2022
SHAREHOLDERS' EQUITY:
Common stock, value	$ 1	$ 1

DISCONTINUED OPERATIONS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	5 Months Ended	12 Months Ended
	Dec. 31, 2022	May 25, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Earnings (loss) from discontinued operations, net of taxes			$ 0	$ 2,694	$ (1,831)
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff \| Vimeo
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Earnings (loss) from discontinued operations, net of taxes	$ (2,700)	$ (1,831)

- Definition

Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

+ References

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-Topic 944
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-Section S99
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+ Details

Cover Page - USD ($)	12 Months Ended
Cover Page - USD ($)	Dec. 31, 2023	Feb. 09, 2024	Jun. 30, 2023
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Document Transition Report	false
Entity File Number	001-39356
Entity Registrant Name	IAC Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	84-3727412
Entity Address, Address Line One	555 West 18th Street
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10011
City Area Code	212
Local Phone Number	314-7300
Title of 12(b) Security	Common Stock, par value $0.0001
Trading Symbol	IAC
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 4,761,375,976
Documents Incorporated by Reference	Portions of the registrant's proxy statement for its 2024 Annual Meeting of Stockholders are incorporated by reference into Part III herein.
Entity Central Index Key	0001800227
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false
Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		80,176,122
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		5,789,499

LEASES (Tables)

12 Months Ended

Dec. 31, 2023

Leases [Abstract]

Schedule of Supplemental Balance Sheet Information of Leases

The following table presents the balances of ROU assets and lease liabilities within the balance sheet:


		December 31,
Leases	Balance Sheet Classification	2023		2022
		(In thousands)
Assets:
ROU assets	Other non-current assets	$	299,597	$	428,160

Liabilities:
Current lease liabilities	Accrued expenses and other current liabilities	$	68,126	$	67,192
Long-term lease liabilities	Other long-term liabilities	401,118		518,851
Total lease liabilities		$	469,244	$	586,043

Schedule of Lease Cost and Other Information

The following table presents the net lease expense within the statement of operations:


		Years Ended December 31,
Lease Expense	Statement of Operations Classification	2023		2022		2021
		(In thousands)
Fixed lease expense	Cost of revenue	$	708	$	1,283	$	1,707
Fixed lease expense	Selling and marketing expense	2,362		6,229		9,443
Fixed lease expense	General and administrative expense	110,177		61,886		31,165
Fixed lease expense	Product development expense	658		999		1,756
Total fixed lease expense(a)		113,905		70,397		44,071

Variable lease expense	Selling and marketing expense	79		199		1,087
Variable lease expense	General and administrative expense	19,610		16,406		8,176
Variable lease expense	Product development expense	157		89		639
Total variable lease expense		19,846		16,694		9,902
Net lease expense		$	133,751	$	87,091	$	53,973

_____________________

The following is the supplemental cash flow information:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
ROU assets obtained in exchange for lease liabilities (c)	$	7,545	$	9,608	$	421,153
Derecognition of ROU assets due to termination or modification	$	(34,809)	$	(4,612)	$	(1,854)
Cash paid for amounts included in the measurement of lease liabilities	$	100,328	$	93,864	$	44,659

_____________________

(c) December 31, 2021 includes $416.6 million of ROU assets acquired related to Meredith as of the date of acquisition. The related lease liabilities acquired were $437.7 million.

Schedule of Maturities of Operating Lease Liabilities

Maturities of lease liabilities at December 31, 2023(b) are summarized below:


Years Ending December 31,	(In thousands)
2024	$	89,626
2025	81,500
2026	76,461
2027	63,097
2028	59,013
Thereafter	194,120
Total	563,817
Less: Interest	94,573
Present value of lease liabilities	$	469,244

_____________________

(b) At December 31, 2023 there were no legally binding minimum lease payments for leases signed but not yet commenced.

Schedule of Weighted-Average Lease Term and Discount Rate of Leases

The following are the weighted average assumptions used for lease term and discount rate:


	December 31,
	2023		2022
Remaining lease term	7.5 years		11.4 years
Discount rate	5.07	%	5.22	%

LEASES - Other Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Right-of-use assets obtained in exchange for lease liabilities	$ 7,545	$ 9,608	$ 421,153
Derecognition of ROU assets due to termination or modification	(34,809)	(4,612)	(1,854)
Cash paid for amounts included in the measurement of lease liabilities	$ 100,328	93,864	44,659
Meredith Corporation
Lessee, Lease, Description [Line Items]
Right-of-use assets obtained in exchange for lease liabilities			437,700
ROU asset acquired			$ 416,600
Downward purchase accounting adjustment		4,300
Upward purchase accounting adjustment		$ 7,100

PENSION AND POSTRETIREMENT BENEFIT PLANS - Changes in Benefit Obligation and Changes in Plan Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
International
Change in plan assets
Fair value of plan assets, beginning of year	$ 467,891
Fair value of plan assets, end of year	488,701	$ 467,891
Pension \| United States
Change in benefit obligation
Benefit obligation, beginning of year	72,988	166,800
Acquisitions and related fair value adjustments	0	23,345
Service cost	211	3,562	$ 368
Interest cost	3,140	4,372	224
Net actuarial gain	(49)	(7,262)
Benefits paid (including lump sums)	(19,568)	(9,105)
Settlements	0	(96,100)
Curtailment gain	0	(3,060)
Plan transfer	0	(9,564)
Foreign currency exchange rate impact	0	0
Benefit obligation, end of year	56,722	72,988	166,800
Change in plan assets
Fair value of plan assets, beginning of year	78,199	132,326
Acquisitions and related fair value adjustments	0	18,596
Actual return on plan assets	2,765	(12,657)
Employer contributions	612	44,221
Benefits paid (including lump sums)	(19,568)	(9,105)
Settlements	0	(95,182)
Foreign currency exchange rate impact	0	0
Fair value of plan assets, end of year	62,008	78,199	132,326
Over (under) funded status, end of year	5,286	5,211
Pension \| International
Change in benefit obligation
Benefit obligation, beginning of year	467,829	790,663
Acquisitions and related fair value adjustments	0	0
Service cost	0	0	0
Interest cost	19,610	15,014	981
Net actuarial gain	(6,420)	(210,284)
Benefits paid (including lump sums)	(17,796)	(15,521)
Settlements	0	(34,374)
Curtailment gain	0	0
Plan transfer	0	0
Foreign currency exchange rate impact	25,046	(77,669)
Benefit obligation, end of year	488,269	467,829	790,663
Change in plan assets
Fair value of plan assets, beginning of year	467,891	1,015,274
Acquisitions and related fair value adjustments	0	0
Actual return on plan assets	13,728	(397,417)
Employer contributions	163	122
Benefits paid (including lump sums)	(17,796)	(15,521)
Settlements	0	(34,374)
Foreign currency exchange rate impact	24,715	(100,193)
Fair value of plan assets, end of year	488,701	467,891	1,015,274
Over (under) funded status, end of year	432	62
Post-Retirement \| United States
Change in benefit obligation
Benefit obligation, beginning of year	4,473	10,808
Acquisitions and related fair value adjustments	0	0
Service cost	4	7	1
Interest cost	231	262	22
Net actuarial gain	(496)	(3,717)
Benefits paid (including lump sums)	36	150
Settlements	0	(3,037)
Curtailment gain	0	0
Plan transfer	0	0
Foreign currency exchange rate impact	0	0
Benefit obligation, end of year	4,248	4,473	10,808
Change in plan assets
Fair value of plan assets, beginning of year	0	0
Acquisitions and related fair value adjustments	0	0
Actual return on plan assets	0	0
Employer contributions	0	0
Benefits paid (including lump sums)	0	0
Settlements	0	0
Foreign currency exchange rate impact	0	0
Fair value of plan assets, end of year	0	0	$ 0
Over (under) funded status, end of year	$ (4,248)	$ (4,473)

BUSINESS COMBINATION

12 Months Ended

Dec. 31, 2023

Business Combination and Asset Acquisition [Abstract]

BUSINESS COMBINATION

On December 1, 2021, Dotdash acquired Meredith under the terms of an agreement (the "Merger Agreement") dated as of October 6, 2021, for a total purchase price of $2.7 billion, which includes cash consideration to settle all outstanding vested equity awards and deferred compensation. At the effective time of the merger, each outstanding share of common stock of Meredith (other than certain excluded shares) was converted into the right to receive $42.18 in cash. Pursuant to the Merger Agreement, Meredith equity awards were cancelled, and in exchange each holder received such holder’s portion of the merger consideration as set forth in the Merger Agreement, less the per share exercise price in the case of stock options. The acquisition was accounted for as a business combination under the acquisition method of accounting. The purchase accounting for the Meredith acquisition was completed during the fourth quarter of 2022.

Unaudited pro forma financial information


	Year Ended December 31,
	2021
	(In thousands, except per share data)
Revenue	$	5,599,334
Net earnings from continuing operations	$	650,189
Basic earnings per share from continuing operations	$	7.39
Diluted earnings per share from continuing operations	$	6.95
Net earnings attributable to IAC shareholders	$	656,920
Basic earnings per share attributable to IAC shareholders	$	7.36
Diluted earnings per share attributable to IAC shareholders	$	6.93

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash and Cash Equivalents and Investments in Debt Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Maturity period at purchase (less than)	91 days
Available for sale marketable debt securities	$ 148,998	$ 235,056

RELATED PARTY TRANSACTIONS	12 Months Ended
RELATED PARTY TRANSACTIONS	Dec. 31, 2023
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS IAC and Angi Inc. Allocation of CEO Compensation and Certain Expenses Joseph Levin, CEO of IAC and Chairman of Angi Inc., was appointed CEO of Angi Inc. on October 10, 2022. As a result, for the year ended December 31, 2023 and for the period from October 10, 2022 to December 31, 2022, IAC allocated $9.4 million and $2.1 million, respectively, in costs to Angi Inc. (including salary, benefits, stock-based compensation and costs related to the CEO’s office). These costs were allocated from IAC based upon time spent on Angi Inc. by Mr. Levin. Management considers the allocation method to be reasonable. The allocated costs also include costs directly attributable to Angi Inc. that were initially paid for by IAC and billed by IAC to Angi Inc. The Combination and Related Agreements The Company and Angi Inc., in connection with the Combination, entered into a contribution agreement; an investor rights agreement; a services agreement; a tax sharing agreement; and an employee matters agreement, which collectively govern the relationship between IAC and Angi Inc. During the years ended December 31, 2023 and 2022, there have been no exercises and settlements of Angi Inc. stock appreciation rights, and no exercises or vestings of IAC equity awards held by Angi Inc. employees, that would require, pursuant to the employee matters agreement, reimbursement to IAC in Angi Inc. Class A and Class B common stock. During the year ended December 31, 2021, pursuant to the employee matters agreement, 2.6 million shares of Angi Inc. Class A common stock were issued to a subsidiary of the Company as reimbursement for IAC common stock issued in connection with the exercise and settlement of certain Angi Inc. stock appreciation rights and 0.2 million shares of Angi Inc. Class B common stock were issued to a subsidiary of the Company as reimbursement for shares of IAC common stock in connection with the exercise and vesting of IAC equity awards held by Angi Inc. employees. IAC and Vimeo In connection with the spin-off of Vimeo from IAC, the parties entered in several agreements to govern their relationship following the completion of the transaction, certain of which remain in effect and are as follows: a separation agreement; a tax matters agreement and an employee matters agreement. Following the completion of the transaction, Vimeo and IAC entered into certain commercial agreements, including lease agreements. The Company and Vimeo are related parties because Mr. Diller is the beneficial owner of more than 10% of the voting interests in both IAC and Vimeo. The Company had an outstanding receivable of $0.8 million due from Vimeo pursuant to the separation agreement at December 31, 2022. This amount was included in "Other current assets" in the balance sheet and was paid in full in October 2023. At December 31, 2023, there were no outstanding receivables or payables pursuant to the separation agreement. The Company charged Vimeo rent pursuant to lease agreements of $3.5 million and $4.6 million for the years ended December 31, 2023 and 2022, respectively, and $2.6 million for the period following the Spin-off of May 25, 2021 through December 31, 2021. At December 31, 2023, the Company has an outstanding receivable of $0.3 million due from Vimeo pursuant to the lease agreements. This amount is included in "Other non-current assets" in the balance sheet. At December 31, 2022, there were no outstanding receivables due from Vimeo pursuant to the lease agreements. IAC and Expedia At December 31, 2023, the Company and Expedia each had a 50% ownership interest in two aircraft that may be used by both companies. One of these aircraft was delivered in the third quarter of 2021; IAC and Expedia each made the payments to acquire their respective interest in this aircraft directly to third parties. In the fourth quarter of 2022, the Company and Expedia sold a corporate aircraft that was jointly owned for total proceeds of $19.0 million (sales price net of related costs), with each company receiving 50% of the proceeds. Members of the aircraft flight crews are employed by an entity in which the Company and Expedia each have a 50% ownership interest. The Company and Expedia have agreed to share costs relating to flight crew compensation and benefits pro-rata according to each company’s respective usage of the aircraft, for which they are separately billed by the entity described above. The Company and Expedia are related parties because Mr. Diller serves as Chairman and Senior Executive of both IAC and Expedia. For each of the years in the period ended December 31, 2023, the payments made to this entity by the Company were not material. In addition, in December 2021, the Company and Expedia entered into an agreement pursuant to which Expedia may use certain aircraft owned 100% by a subsidiary of the Company on a cost basis. For the years ended December 31, 2023 and 2022, the payments made by Expedia to the Company pursuant to this arrangement were not material.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-5

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-6

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(e))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//850/tableOfContent

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-6

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

+ Details

LEASES - Operating Lease Liabilities Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
2024	$ 89,626
2025	81,500
2026	76,461
2027	63,097
2028	59,013
Thereafter	194,120
Total	563,817
Less: Interest	94,573
Present value of lease liabilities	$ 469,244	$ 586,043

CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Angi Inc.	IAC	Redeemable Noncontrolling Interests	Total IAC Shareholders' Equity	Total IAC Shareholders' Equity Angi Inc.	Total IAC Shareholders' Equity IAC	Common Stock Common Stock, $0.0001 par value	Common Stock Class B Common Stock, $0.0001 par value	Common Stock Common Stock, $0.001 par value	Common Stock Class B Common Stock, $0.001 par value	Additional Paid-in Capital	Additional Paid-in Capital Angi Inc.	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive (Loss) Income	Accumulated Other Comprehensive (Loss) Income Angi Inc.	Treasury Stock	Treasury Stock IAC	Noncontrolling Interests	Noncontrolling Interests Angi Inc.
Balance at beginning of period at Dec. 31, 2020				$ 231,992
Increase (Decrease) in Temporary Equity [Roll Forward]
Net earnings (loss)				1,732
Other comprehensive income (loss), net of income taxes				515
Issuance, creation of noncontrolling interest				40,785
Distribution to and purchase of noncontrolling interests				(29,769)
Adjustment of noncontrolling interests to redemption amount				777,688
Elimination of Vimeo's noncontrolling interests				(1,002,324)
Other				(1,878)
Balance at end of period at Dec. 31, 2021				18,741
Balance at beginning of period at Dec. 31, 2020	$ 7,150,928				$ 6,597,575			$ 0	$ 0	$ 83	$ 6	$ 5,909,614		$ 694,042	$ (6,170)		$ 0		$ 553,353
Balance at beginning of period (shares) at Dec. 31, 2020								0	0	82,976	5,789
Increase (Decrease) in Shareholders' Equity
Net earnings (loss)	587,253				597,547									597,547					(10,294)
Other comprehensive income (loss), net of income taxes	9,911				10,519										10,519				(608)
Stock-based compensation expense	92,340				59,283							59,283							33,057
Issuance of common stock pursuant to stock-based awards, net of withholding taxes	(98,691)	$ (61,223)			(98,691)	$ (59,609)						(98,691)	$ (59,619)			$ 10				$ (1,614)
Issuance of common stock pursuant to stock-based awards, net of withholding taxes (shares)								564		382
Purchase of treasury stock		(35,959)				(35,959)							(35,959)
Issuance of Vimeo common stock and creation of noncontrolling interest, net of fees	258,965				258,965							258,965
Distribution to and purchase of noncontrolling interests	(570)				0														(570)
Adjustment of noncontrolling interests to redemption amount	(777,688)				(777,688)							(777,688)
Recapitalization of IAC upon Vimeo spin-off	0							$ 8	$ 1	$ (83)	$ (6)	80
Recapitalization of IAC upon Vimeo spin-off (shares)								83,358	5,789	(83,358)	(5,789)
Spin-off IAC's investment in Vimeo	(386,438)				(386,438)							(38)		(386,438)	38
Elimination of Vimeo's noncontrolling interests	1,002,324				1,002,324							1,002,324
Change in the MTCH Separation tax account distribution	7,640				7,640							7,640
Other	168				(242)							(242)							410
Balance at end of period at Dec. 31, 2021	7,748,960				7,175,226			$ 8	$ 1			6,265,669		905,151	4,397		0		573,734
Balance at end of period (shares) at Dec. 31, 2021								83,922	5,789
Increase (Decrease) in Temporary Equity [Roll Forward]
Net earnings (loss)				(2,130)
Issuance, creation of noncontrolling interest				(11,782)
Distribution to and purchase of noncontrolling interests				(1,179)
Adjustment of noncontrolling interests to redemption amount				24,229
Other				(644)
Balance at end of period at Dec. 31, 2022	27,235			27,235
Increase (Decrease) in Shareholders' Equity
Net earnings (loss)	(1,190,325)				(1,170,170)									(1,170,170)					(20,155)
Other comprehensive income (loss), net of income taxes	(18,776)				(17,541)										(17,541)				(1,235)
Stock-based compensation expense	126,699				70,808							70,808							55,891
Issuance of common stock pursuant to stock-based awards, net of withholding taxes	(16,905)	(8,627)			(16,905)	(12,265)						(16,905)	(12,276)			$ 11				3,638
Issuance of common stock pursuant to stock-based awards, net of withholding taxes (shares)								262
Purchase of treasury stock	(85,300)	(8,144)	$ (85,323)			(8,144)	$ (85,323)						(8,144)					$ (85,323)
Adjustment of noncontrolling interests to redemption amount	(24,229)				(24,229)							(24,229)
Adjustment to the liquidation value of Vivian Health preferred shares	54,700				17,818							17,818							36,882
Adjustment to noncontrolling interests resulting from the reorganization of a foreign subsidiary	(255)				7,580							7,580							(7,835)
Other	(5,241)				(5,241)							(5,241)
Balance at end of period at Dec. 31, 2022	6,572,534				5,931,614			$ 8	$ 1			6,295,080		(265,019)	(13,133)		(85,323)		640,920
Balance at end of period (shares) at Dec. 31, 2022								84,184	5,789
Increase (Decrease) in Temporary Equity [Roll Forward]
Net earnings (loss)				1,175
Adjustment of noncontrolling interests to redemption amount				7,567
Other				(249)
Balance at end of period at Dec. 31, 2023	33,378			$ 33,378
Increase (Decrease) in Shareholders' Equity
Net earnings (loss)	259,492				265,942									265,942					(6,450)
Other comprehensive income (loss), net of income taxes	2,699				2,186										2,186				513
Stock-based compensation expense	121,950				73,562							73,562							48,388
Issuance of common stock pursuant to stock-based awards, net of withholding taxes	(9,814)	(6,288)			(9,814)	(5,615)						(9,814)	(5,620)		5					$ (673)
Issuance of common stock pursuant to stock-based awards, net of withholding taxes (shares)								281
Purchase of treasury stock, net of excise tax on share issuances		$ (11,099)	$ (167,118)			$ (11,099)	$ (167,118)						$ (11,099)					$ (167,118)
Purchase of treasury stock	(165,600)
Adjustment of noncontrolling interests to redemption amount	(7,567)				(7,567)							(7,567)
Adjustment to the liquidation value of Vivian Health preferred shares	0				5,527							5,527							(5,527)
Other	214				243							243							(29)
Balance at end of period at Dec. 31, 2023	$ 6,755,003				$ 6,077,861			$ 8	$ 1			$ 6,340,312		$ 923	$ (10,942)		$ (252,441)		$ 677,142
Balance at end of period (shares) at Dec. 31, 2023								84,465	5,789

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS

Marketable Securities

At December 31, 2023 and 2022, the fair value of marketable securities are as follows:


	December 31,
	2023		2022
	(In thousands)
Marketable equity securities	$	—	$	4,317
Available for sale marketable debt securities	148,998		235,056
Total marketable securities	$	148,998	$	239,373

Marketable securities are carried at fair value. The Company has no investments in marketable equity securities, following the change in classification of its investment in MGM to an equity method investment in the fourth quarter of 2023, described below. At December 31, 2022, the Company had two investments in marketable equity securities, other than its investment in MGM, including one investment that was fully impaired in the first quarter of 2023 due to the investee declaring bankruptcy and another investment that was sold in the third quarter of 2023. The Company recorded net unrealized pre-tax losses of $0.3 million and $20.3 million for these investments during the years ended December 31, 2023 and 2022, respectively. The unrealized pre-tax losses related to these investments are included in "Other income (expense), net" in the statement of operations.

At December 31, 2023 and 2022, current available-for-sale marketable debt securities are as follows:


	December 31, 2023								December 31, 2022
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
Treasury discount notes	$	148,971	$	27	$	—	$	148,998	$	234,987	$	75	$	(6)	$	235,056
Total available-for-sale marketable debt securities	$	148,971	$	27	$	—	$	148,998	$	234,987	$	75	$	(6)	$	235,056

The contractual maturities of debt securities classified as current available-for-sale at December 31, 2023 and 2022 were within one year. There were no investments in available-for-sale marketable debt securities that had been in a continuous unrealized loss position for longer than twelve months at December 31, 2023 and 2022.

Investment in MGM Resorts International


	December 31,
	2023		2022
	(In thousands)
Investment in MGM Resorts International	$	2,891,850	$	2,170,182

At December 31, 2023, the Company owns 64.7 million common shares of MGM, including a total of 5.7 million common shares purchased in the first and third quarters of 2022 for $244.3 million. Based on the number of MGM common shares outstanding at December 31, 2023, the Company owns 19.8% of MGM. During the fourth quarter of 2023, due to MGM's ongoing share repurchase program, which increased the Company's ownership interest passively, the Company determined that the equity method of accounting applies and has elected to account for its investment in MGM pursuant to the fair value option. Prior to the fourth quarter of 2023, the Company's investment in MGM was accounted for as an equity security with a readily determinable fair value, with changes in fair value recognized through income each period. Since the Company has always marked its investment in MGM to fair value through income each period the election of the fair value option will result in no change to the historical accounting for this investment. The fair value of the investment in MGM is remeasured each reporting period based upon MGM's closing stock price on the New York Stock Exchange on the last trading day in the reporting period and any unrealized pre-tax gains or losses are included in the statement of operations. For the years ended December 31, 2023, 2022 and 2021, the Company recognized unrealized pre-tax gains (losses) of $721.7 million, $(723.5) million and $789.3 million, respectively on its investment in MGM. The cumulative unrealized net pre-tax gain through December 31, 2023 is $1.6 billion. A $2.00 increase or decrease in the share price of MGM would result in an unrealized gain or loss, respectively, of $129.4 million. At February 9, 2024, the fair value of the Company's investment in MGM was $3.0 billion.


	December 31, 2023

	(In thousands)
Current assets	$	4,910,593
Non-current assets	$	37,457,955
Current liabilities	$	3,126,068
Non-current liabilities	$	34,874,979
Redeemable noncontrolling interests	$	33,356
Noncontrolling interests	$	522,975


	October 1, 2023 through December 31, 2023

	(In thousands)
Revenues	$	4,375,563
Expenses	$	3,962,796
Net income	$	379,612
Net income attributable to MGM	$	313,460

Long-term Investments

Long-term investments consist of:


	December 31,
	2023		2022
	(In thousands)
Equity securities without readily determinable fair values	$	404,848	$	323,530
Other	6,368		2,191
Total long-term investments	$	411,216	$	325,721

In April 2023, the Company purchased additional preferred shares of Turo Inc. ("Turo"), a peer-to-peer car sharing marketplace, for $103.6 million, which is accounted for as an equity security without a readily determinable fair value, as the preferred shares are not common stock equivalents.

Equity Securities without Readily Determinable Fair Values


	Years Ended December 31,
	2023		2022
	(In thousands)
Upward adjustments (gross unrealized pre-tax gains)	$	2,227	$	8,245
Downward adjustments including impairments (gross unrealized pre-tax losses)	(22,463)		(97,382)
Total	$	(20,236)	$	(89,137)

The cumulative upward and downward adjustments (including impairments) to the carrying value of equity securities without readily determinable fair values held at December 31, 2023 were $37.8 million and $(126.1) million, respectively.

Realized and unrealized pre-tax gains and losses for the Company's investments without readily determinable fair values for the years ended December 31, 2023, 2022 and 2021 are as follows:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Realized pre-tax gains, net, for equity securities sold	$	89	$	12,434	$	5,773
Unrealized pre-tax (losses) gains, net, on equity securities held	(20,236)		(89,137)		8,892
Total pre-tax (losses) gains, net recognized	$	(20,147)	$	(76,703)	$	14,665

All pre-tax gains and losses on equity securities without readily determinable fair values, realized and unrealized, are recognized in "Other income (expense), net" in the statement of operations.

Fair Value Measurements

The following tables present the Company's financial instruments that are measured at fair value on a recurring basis:


	December 31, 2023
	Quoted Market Prices for Identical Assets in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
	(In thousands)
Assets:
Cash equivalents:
Money market funds	$	910,849	$	—	$	—	$	910,849
Treasury discount notes	—		87,251		—		87,251
Time deposits	—		19,497		—		19,497
Marketable securities:

Treasury discount notes	—		148,998		—		148,998
Investment in MGM	2,891,851		—		—		2,891,851
Other non-current assets:
Warrant	—		—		49,631		49,631

Total	$	3,802,700	$	255,746	$	49,631	$	4,108,077

Liabilities:
Interest rate swaps(a)	$	—	$	(907)	$	—	$	(907)

_____________________


	December 31, 2022
	Quoted Market Prices for Identical Assets in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
	(In thousands)
Assets:
Cash equivalents:
Money market funds	$	862,829	$	—	$	—	$	862,829
Treasury discount notes	—		137,219		—		137,219
Time deposits	—		16,018		—		16,018
Marketable securities:
Marketable equity securities	4,317		—		—		4,317
Treasury discount notes	—		235,056		—		235,056
Investment in MGM	2,170,182		—		—		2,170,182
Other non-current assets:
Warrant	—		—		46,799		46,799
Total	$	3,037,328	$	388,293	$	46,799	$	3,472,420

The following table presents the changes in the Company's financial instruments that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3):


	Years Ended December 31,
	2023		2022
	Warrant			Warrant		Contingent Consideration Arrangements
	(In thousands)
Balance at January 1	$	46,799		$	109,294	$	(612)

Total net gains (losses):
Fair value adjustments included in earnings	2,832			(62,495)		612

Balance at December 31	$	49,631		$	46,799	$	—

Warrant

As part of the Company's original investment in Turo preferred shares, the Company received a warrant that is recorded at fair value each reporting period using a Monte Carlo simulation model with any change included in "Other income (expense), net" in the statement of operations. The warrant is measured using significant unobservable inputs and is classified in the fair value hierarchy table as Level 3. The warrant is included in "Other non-current assets" in the balance sheet.

Contingent Consideration Arrangements

At December 31, 2023 and 2022, the Company has no contingent consideration arrangements outstanding. In connection with the Meredith acquisition on December 1, 2021, the Company assumed a contingent consideration arrangement liability of $0.6 million, which was written off during the first quarter of 2022 due to a change in estimate of the liability related to this arrangement. During the third quarter of 2021, the Company recorded a $15.0 million loss related to one contingent consideration arrangement, which was subsequently paid during the fourth quarter of 2021.

Financial instruments measured at fair value only for disclosure purposes

The total fair value of the outstanding long-term debt, including the current portion, is estimated using observable market prices or indices for similar liabilities, which are Level 2 inputs, and was approximately $2.0 billion and $1.7 billion at December 31, 2023 and 2022, respectively.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

DISCONTINUED OPERATIONS

12 Months Ended

Dec. 31, 2023

Discontinued Operations and Disposal Groups [Abstract]

DISCONTINUED OPERATIONS

On May 25, 2021, IAC completed the Spin-off. Following the Spin-off, Vimeo became an independent, separately traded public company. Therefore, Vimeo is presented as a discontinued operation within the Company's financial statements for 2021. During the fourth quarter of 2022, the Company allocated to Vimeo certain federal and state net operating losses based on the filing of its 2021 tax returns. The Company recorded a $2.7 million tax benefit through discontinued operations and deferred taxes to reflect this allocation.

The components of the loss from discontinued operations for the period January 1, 2021 through May 25, 2021 in the statement of operations consisted of the following:


	January 1 through May 25, 2021
	(In thousands)
Revenue	$	145,514
Operating costs and expenses:
Cost of revenue (exclusive of depreciation shown separately below)	39,995
Selling and marketing expense	54,774
General and administrative expense	23,343
Product development expense	35,651
Depreciation	182
Amortization of intangibles	2,983
Total operating costs and expenses	156,928
Operating loss from discontinued operations	(11,414)
Interest expense	(140)
Other income, net	10,172
Loss from discontinued operations before taxes	(1,382)
Income tax provision	(449)
Loss from discontinued operations, net of taxes	$	(1,831)

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets:
Marketable equity securities		$ 4,317
Treasury discount notes	$ 148,998	235,056
Investment in MGM	2,891,851	2,170,182
Other non-current assets	473,267	625,774
Total assets	4,108,077	3,472,420
Interest rate swaps
Liabilities:
Liabilities	(907)
Dotdash Meredith Term Loan B Facility \| Interest rate swaps \| Dotdash Meredith
Liabilities:
Notional amount	350,000
Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Assets:
Marketable equity securities		4,317
Treasury discount notes	0	0
Investment in MGM	2,891,851	2,170,182
Total assets	3,802,700	3,037,328
Quoted Market Prices for Identical Assets in Active Markets (Level 1) \| Interest rate swaps
Liabilities:
Liabilities	0
Significant Other Observable Inputs (Level 2)
Assets:
Marketable equity securities		0
Treasury discount notes	148,998	235,056
Investment in MGM	0	0
Total assets	255,746	388,293
Significant Other Observable Inputs (Level 2) \| Interest rate swaps
Liabilities:
Liabilities	(907)
Significant Unobservable Inputs (Level 3)
Assets:
Marketable equity securities		0
Treasury discount notes	0	0
Investment in MGM	0	0
Total assets	49,631	46,799
Significant Unobservable Inputs (Level 3) \| Interest rate swaps
Liabilities:
Liabilities	0
Money market funds
Assets:
Cash equivalents	910,849	862,829
Money market funds \| Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Assets:
Cash equivalents	910,849	862,829
Money market funds \| Significant Other Observable Inputs (Level 2)
Assets:
Cash equivalents	0	0
Money market funds \| Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	0	0
Treasury discount notes
Assets:
Cash equivalents	87,251	137,219
Treasury discount notes \| Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Assets:
Cash equivalents	0	0
Treasury discount notes \| Significant Other Observable Inputs (Level 2)
Assets:
Cash equivalents	87,251	137,219
Treasury discount notes \| Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	0	0
Time deposits
Assets:
Cash equivalents	19,497	16,018
Time deposits \| Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Assets:
Cash equivalents	0	0
Time deposits \| Significant Other Observable Inputs (Level 2)
Assets:
Cash equivalents	19,497	16,018
Time deposits \| Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	0	0
Warrant
Assets:
Other non-current assets	49,631	46,799
Warrant \| Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Assets:
Other non-current assets	0	0
Warrant \| Significant Other Observable Inputs (Level 2)
Assets:
Other non-current assets	0	0
Warrant \| Significant Unobservable Inputs (Level 3)
Assets:
Other non-current assets	$ 49,631	$ 46,799

FINANCIAL STATEMENT DETAILS - Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid expenses	$ 91,118	$ 80,039
Other	166,381	216,524
Other current assets	$ 257,499	$ 296,563

FINANCIAL STATEMENT DETAILS - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued employee compensation and benefits	$ 180,384	$ 169,227
Customer deposit liability	118,522	125,441
Accrued advertising expense	56,055	78,601
Other	316,566	386,490
Accrued expenses and other current liabilities	$ 671,527	$ 759,759

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Narrative (Details) shares in Millions	1 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Apr. 30, 2023 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) shares	Dec. 31, 2023 USD ($) investment shares	Dec. 31, 2022 USD ($) investment	Dec. 31, 2021 USD ($)	Feb. 09, 2024 USD ($)	Dec. 01, 2021 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of investments in marketable equity securities \| investment				0	2
Unrealized gain (loss) on marketable equity security				$ (300,000)	$ (20,300,000)
Available-for-sale marketable debt securities in a continuous unrealized loss position for longer than twelve months				0	0
Purchase of investment				0	244,256,000	$ 0
Unrealized (gain) loss on investment in MGM Resorts International				721,668,000	(723,515,000)	789,283,000
Investment in MGM Resorts International				2,891,850,000	2,170,182,000
Purchases of additional preferred shares				103,555,000	3,036,000	24,290,000
Total upward adjustments to equity securities without readily determinable fair value				37,800,000
Total downward adjustments to equity securities without readily determinable fair value				(126,100,000)
Acquisition-related contingent consideration fair value adjustments		$ 15,000,000			612,000	(14,992,000)
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of long-term debt				$ 2,000,000,000	1,700,000,000
Meredith Corporation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration arrangement liability								$ 600,000
Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in MGM Resorts International							$ 3,000,000,000
MGM
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment common shares owned (in shares) \| shares				64.7
Number of equity securities purchased (in shares) \| shares			5.7
Purchase of investment			$ 244,300,000
Ownership percentage				19.80%
Unrealized (gain) loss on investment in MGM Resorts International				$ 721,700,000	$ (723,500,000)	$ 789,300,000
Cumulative unrealized net pre-tax gain				1,600,000,000
Unrealized gain (loss), impact in $2.00 change in share price				$ 129,400,000
Turo
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Purchases of additional preferred shares	$ 103,600,000

PENSION AND POSTRETIREMENT BENEFIT PLANS - Net Periodic Benefit Costs (Credit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss recognition	$ (1,700)	$ 213,400	$ 7,100
United States \| Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost	211	3,562	368
Interest cost	3,140	4,372	224
Expected return on plan assets	(1,881)	(2,748)	(564)
Actuarial (gain) loss recognition	(932)	8,154	(2,480)
Settlement	0	(918)	0
Contractual termination benefits	0	0	11,785
Curtailment gain	0	(3,060)	0
Net periodic benefit cost (credit)	538	9,362	9,333
United States \| Post-Retirement
Defined Benefit Plan Disclosure [Line Items]
Service cost	4	7	1
Interest cost	231	262	22
Expected return on plan assets	0	0	0
Actuarial (gain) loss recognition	(496)	(3,717)	(132)
Settlement	0	(3,037)	0
Contractual termination benefits	0	0	0
Curtailment gain	0	0	0
Net periodic benefit cost (credit)	(261)	(6,485)	(109)
International \| Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0
Interest cost	19,610	15,014	981
Expected return on plan assets	(19,586)	(16,857)	(1,640)
Actuarial (gain) loss recognition	(225)	208,957	9,724
Settlement	0	0	0
Contractual termination benefits	0	0	0
Curtailment gain	0	0	0
Net periodic benefit cost (credit)	$ (201)	$ 207,114	$ 9,065

FINANCIAL STATEMENT DETAILS (Tables)

12 Months Ended

Dec. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Cash and Cash Equivalents

The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the balance sheet to the total amounts shown in the statement of cash flows:


	December 31, 2023		December 31, 2022		December 31, 2021		December 31, 2020
	(In thousands)
Cash and cash equivalents	$	1,297,445	$	1,417,390	$	2,118,730	$	3,366,176
Restricted cash included in other current assets	8,539		1,165		1,941		448
Restricted cash included in other non-current assets	257		7,514		1,193		449
Cash, cash equivalents, and restricted cash included in current assets of discontinued operations	—		—		—		110,037
Total cash and cash equivalents and restricted cash as shown on the statement of cash flows	$	1,306,241	$	1,426,069	$	2,121,864	$	3,477,110

Schedule of Restricted Cash

The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the balance sheet to the total amounts shown in the statement of cash flows:


	December 31, 2023		December 31, 2022		December 31, 2021		December 31, 2020
	(In thousands)
Cash and cash equivalents	$	1,297,445	$	1,417,390	$	2,118,730	$	3,366,176
Restricted cash included in other current assets	8,539		1,165		1,941		448
Restricted cash included in other non-current assets	257		7,514		1,193		449
Cash, cash equivalents, and restricted cash included in current assets of discontinued operations	—		—		—		110,037
Total cash and cash equivalents and restricted cash as shown on the statement of cash flows	$	1,306,241	$	1,426,069	$	2,121,864	$	3,477,110

Schedule of Changes in the Allowance for Credit Losses

The following table presents the changes in the allowance for credit losses for the years ended December 31, 2023 and 2022, respectively:


	2023		2022
	(In thousands)
Balance at January 1	$	50,971	$	36,637
Current period provision for credit losses	87,729		116,553
Write-offs charged against the allowance	(104,764)		(107,188)

Recoveries collected	5,227		5,367
Sale of a business	(6,958)		—
Other	174		(398)
Balance at December 31	$	32,379	$	50,971

Schedule of Other Current Assets


	December 31,
	2023		2022
	(In thousands)

Prepaid expenses	$	91,118	$	80,039


Other	166,381		216,524
Other current assets	$	257,499	$	296,563

Schedule of Property and Equipment, Net


Asset Category			Estimated Useful Lives
Capitalized software and computer equipment			2 to 3 Years
Furniture and other equipment			3 to 12 Years
Buildings and leasehold improvements			3 to 39 Years


	December 31,
	2023		2022
	(In thousands)
Capitalized software and computer equipment	$	329,312	$	291,600
Buildings and leasehold improvements	268,840		305,304
Furniture and other equipment	131,442		137,570
Land	86,032		20,234
Projects in progress	13,911		30,379
Total gross carrying amount	829,537		785,087
Accumulated depreciation and amortization	(374,256)		(274,473)
Capitalized software, equipment, buildings, land and leasehold improvements, net	$	455,281	$	510,614

Schedule of Accrued Expenses and Other Current Liabilities


	December 31,
	2023		2022
	(In thousands)
Accrued employee compensation and benefits	$	180,384	$	169,227
Customer deposit liability	118,522		125,441
Accrued advertising expense	56,055		78,601
Other	316,566		386,490
Accrued expenses and other current liabilities	$	671,527	$	759,759

Schedule of Other (Expense) Income, Net


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Interest income	$	71,114	$	24,916	$	1,351
Unrealized increase (decrease) in the estimated fair value of a warrant	2,832		(62,495)		104,018
Foreign exchange gains (losses), net(a)	1,528		(8,503)		(13,636)
Net periodic pension benefit credit (cost), other than the service cost component(b)	139		(206,422)		(17,858)
Net (downward) upward adjustments to the carrying value of equity securities without readily determinable fair values and realized gains on sales of businesses and investments(c)(d)	(19,201)		59,299		18,874
Unrealized (loss) gain related to marketable equity securities	(145)		(20,342)		18,788
Realized gain on the sale of a marketable equity security	—		—		7,174
Loss on extinguishment of debt(e)	—		—		(1,110)

Other	7,595		(4,238)		(5,747)
Other income (expense), net	$	63,862	$	(217,785)	$	111,854

_____________________

(a) Includes $10.0 million in foreign exchange losses primarily related to the substantial liquidation of certain foreign subsidiaries in the year ended December 31, 2021.

(e) Represents the write-off of deferred debt issuance costs related to the ANGI Group Term Loan, which was repaid in its entirety during the second quarter of 2021.

Schedule of Supplemental Disclosure of Cash Flow Information


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Cash (paid) received during the year for:
Interest, net(f)	$	(156,172)	$	(98,150)	$	(21,702)
Income tax payments	$	(18,782)	$	(16,407)	$	(9,880)
Income tax refunds	$	1,667	$	3,004	$	1,762

SUBSEQUENT EVENT

12 Months Ended

Dec. 31, 2023

Subsequent Events [Abstract]

SUBSEQUENT EVENT

On February 15, 2024, IAC completed the sale of the assets of Mosaic Group (reported within Emerging & Other) for approximately $160.0 million.

The table below reflects Mosaic Group's revenue and a reconciliation of operating income (loss) to Adjusted EBITDA for the year ended December 31, 2023 and for each of the quarters in 2023:


	Quarters Ended								Year Ended
	March 31, 2023		June 30, 2023		September 30, 2023		December 31, 2023		December 31, 2023
	(In thousands)
Revenue	$	40,501	$	39,014	$	38,672	$	37,498	$	155,685

Operating income (loss)	$	6,243	$	4,160	$	(5,427)	$	6,588	$	11,564
Add:

Amortization of intangibles	149		149		149		48		495
Depreciation	5		4		3		3		15
Goodwill impairment	—		—		9,000		—		9,000
Adjusted EBITDA	$	6,397	$	4,313	$	3,725	$	6,639	$	21,074

DOTDASH MEREDITH RESTRUCTURING CHARGES, TRANSACTION-RELATED EXPENSES AND CHANGE-IN-CONTROL PAYMENTS

12 Months Ended

Dec. 31, 2023

Restructuring and Related Activities [Abstract]

DOTDASH MEREDITH RESTRUCTURING CHARGES, TRANSACTION-RELATED EXPENSES AND CHANGE-IN-CONTROL PAYMENTS

Restructuring Charges

During 2023, Dotdash Meredith continued to incur costs related to a voluntary retirement program announced in the first quarter of 2022 and recorded adjustments to previously accrued amounts related to a reduction in force plan, for which the related expenses were accrued primarily in the fourth quarter of 2022.

During 2022, Dotdash Meredith management committed to several actions to improve efficiencies and better align its cost structure following the acquisition of Meredith on December 1, 2021, which included: (i) the discontinuation of certain print publications and the shutdown of PeopleTV, for which the related expense was primarily reflected in the first quarter of 2022, (ii) the aforementioned voluntary retirement program, for which the related expense was primarily reflected in the first half of 2022, (iii) the consolidation of certain leased office space, for which the related expense was reflected in the third quarter of 2022 and (iv) the aforementioned reduction in force plan. These actions resulted in $80.2 million of restructuring charges incurred for the year ended December 31, 2022.

A summary of the costs incurred, payments and related accruals is presented below. As of December 31, 2023, there are no expected remaining costs associated with the 2022 restructuring events.


			Year Ended December 31, 2023
	Accrued December 31, 2022		Charges Incurred		Reversal of Initial Cost		Payments		Accrued December 31, 2023		Cumulative Charges Incurred
	(In thousands)
Digital	$	10,950	$	1,371	$	(1,827)	$	(10,021)	$	473	$	38,769
Print	12,055		1,625		(1,645)		(10,916)		1,119		33,412
Other(a)	4,389		678		(727)		(4,042)		298		7,532
Total	$	27,394	$	3,674	$	(4,199)	$	(24,979)	$	1,890	$	79,713

_____________________

(a) Other comprises unallocated corporate expenses, which are corporate overhead expenses not attributable to the Digital or Print segments.


	Year Ended December 31, 2022
	Charges Incurred		Payments		Non-cash(b)		Accrued December 31, 2022
	(In thousands)
Digital	$	39,225	$	(6,966)	$	(21,309)	$	10,950
Print	33,432		(20,952)		(425)		12,055
Other(a)	7,581		(3,192)		—		4,389
Total	$	80,238	$	(31,110)	$	(21,734)	$	27,394

_____________________

The costs are allocated as follows in the statement of operations:


	Years Ended December 31,
	2023		2022
	(In thousands)
Cost of revenue	$	744	$	24,527
Selling and marketing expense	(1,300)		17,174
General and administrative expense	(282)		28,096
Product development expense	313		3,435
Depreciation	—		7,006
Total	$	(525)	$	80,238

Transaction-Related Expenses

For the years ended December 31, 2022 and 2021, Dotdash Meredith incurred $7.1 million and $30.2 million, respectively, of transaction-related expenses related to the acquisition of Meredith, other than costs related to change-in-control payments.

Change-in-Control Payments

In December 2021, Dotdash Meredith recorded $60.1 million in change-in-control payments, which were triggered by the acquisition and the terms of certain former executives' contracts. During 2022, Dotdash Meredith made the final $87.4 million in change-in-control payments, which included amounts accrued in December 2021, as well as amounts previously accrued that became payable following the change-in-control.

PENSION AND POSTRETIREMENT BENEFIT PLANS - Pension Plans with Projected Benefit Obligations and Accumulated Benefit Obligations in Excess of Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
United States
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 4,939	$ 4,350
Accumulated benefit obligation	4,290	3,831
Fair value of plan assets	0	0
International
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	4,419	4,296
Accumulated benefit obligation	4,419	4,296
Fair value of plan assets	$ 0	$ 0

DISCONTINUED OPERATIONS (Tables)

12 Months Ended

Dec. 31, 2023

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Discontinued Operations

The components of the loss from discontinued operations for the period January 1, 2021 through May 25, 2021 in the statement of operations consisted of the following:


	January 1 through May 25, 2021
	(In thousands)
Revenue	$	145,514
Operating costs and expenses:
Cost of revenue (exclusive of depreciation shown separately below)	39,995
Selling and marketing expense	54,774
General and administrative expense	23,343
Product development expense	35,651
Depreciation	182
Amortization of intangibles	2,983
Total operating costs and expenses	156,928
Operating loss from discontinued operations	(11,414)
Interest expense	(140)
Other income, net	10,172
Loss from discontinued operations before taxes	(1,382)
Income tax provision	(449)
Loss from discontinued operations, net of taxes	$	(1,831)

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 360
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147482099/360-10-50-3A

Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 13: http://fasb.org/us-gaap/role/ref/legacyRef
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+ Details

ORGANIZATION - Narrative (Details) professional in Thousands, project in Millions, people in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2023 people brand segment professional project	Dec. 31, 2022 segment	Dec. 31, 2023 people brand segment category professional project
Angi Inc.
Business Acquisition [Line Items]
Ownership interest (as a percent)	84.20%		84.20%
Voting interest (as a percent)	98.10%		98.10%
Dotdash Meredith
Business Acquisition [Line Items]
Number of product users (nearly) \| people	200		200
Number of iconic brands (over) \| brand	40		40
Number of operating segments			2
Angi Inc.
Business Acquisition [Line Items]
Number of operating segments	3	4
Number of service categories (more than) \| category			500
Number of service professionals (over) \| professional	196		196
Number of projects \| project	23		23

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2023

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

Schedule II

IAC INC. AND SUBSIDIARIES

VALUATION AND QUALIFYING ACCOUNTS


Description	Balance at Beginning of Period		Charges to Earnings			Charges to Other Accounts			Deductions			Balance at End of Period
	(In thousands)
2023
Allowance for credit losses	$	50,971	$	87,729	(a)	$	174		$	(106,495)	(b)	$	32,379

Deferred tax valuation allowance	$	124,012	$	4,373	(c)	$	3,673	(d)	$	—		$	132,058
Other reserves	$	1,880										$	1,391
2022
Allowance for credit losses	$	36,637	$	116,553	(a)	$	109		$	(102,328)	(b)	$	50,971

Deferred tax valuation allowance	$	112,640	$	(4,497)	(e)	$	15,869	(f)	$	—		$	124,012
Other reserves	$	2,530										$	1,880
2021
Allowance for credit losses	$	27,178	$	89,893	(a)	$	123		$	(80,557)	(b)	$	36,637
Deferred tax valuation allowance	$	111,691	$	(1,620)	(g)	$	2,569	(h)	$	—		$	112,640
Other reserves	$	—										$	2,530

_________________________________________________________

(a) Additions to the allowance for credit losses are charged to expense.

(b) Amount is primarily write-offs of fully reserved accounts receivable, net of recoveries.

(c) Amount primarily relates to a net increase in unbenefited capital losses and foreign net operating losses ("NOLs"), partially offset by expiring foreign tax credits.

(d) Amount primarily relates to currency translation adjustments on foreign NOLs.

(e) Amount primarily relates to a decrease in federal NOLs, partially offset by a net increase in unbenefited capital losses.

(f) Amount primarily relates to a change in judgement on the realizability of foreign NOLs related to Meredith, acquired by Dotdash on December 1, 2021, partially offset by currency translation adjustments on foreign NOLs.

(g) Amount primarily relates to a decrease in both foreign NOLs and unbenefited capital losses, partially offset by an increase in federal NOLs.

(h) Amount primarily relates to acquired foreign and state NOLs, partially offset by currency translation adjustments on foreign NOLs.

SEGMENT INFORMATION (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

The following table presents revenue by reportable segment:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Revenue
Dotdash Meredith
Digital	$	892,426	$	931,482	$	367,134
Print	823,456		1,026,128		92,002
Intersegment eliminations(a)	(20,989)		(22,911)		(2,863)
Total Dotdash Meredith	1,694,893		1,934,699		456,273
Angi Inc.
Domestic:
Ads and Leads	1,124,908		1,282,061		1,227,074
Services	118,033		381,256		289,948
Total Domestic	1,242,941		1,663,317		1,517,022
International	115,807		101,038		102,295
Total Angi Inc.	1,358,748		1,764,355		1,619,317
Search	629,038		731,431		873,346
Emerging & Other	695,057		823,465		753,203
Intersegment eliminations(b)	(12,501)		(18,670)		(2,512)
Total	$	4,365,235	$	5,235,280	$	3,699,627

_____________________

(a) Intersegment eliminations primarily relates to Dotdash Meredith Digital performance marketing commissions earned for the placement of magazine subscriptions for Print.

The following table presents the revenue of the Company's segments disaggregated by type of service:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Dotdash Meredith
Digital:
Advertising revenue	$	560,786	$	621,714	$	236,660
Performance marketing revenue	231,087		198,441		116,195
Licensing and other revenue	100,553		111,327		14,279
Total Digital revenue	892,426		931,482		367,134
Print:
Subscription revenue	329,357		422,700		34,634
Advertising revenue	203,210		260,282		13,678
Project and other revenue	128,354		154,807		16,414
Newsstand revenue	117,316		132,855		19,183
Performance marketing revenue	45,219		55,484		8,093
Total Print revenue	823,456		1,026,128		92,002


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Intersegment eliminations(a)	(20,989)		(22,911)		(2,863)
Total Dotdash Meredith revenue	$	1,694,893	$	1,934,699	$	456,273


Angi Inc.
Domestic:
Ads and Leads:
Consumer connection revenue	$	781,089	$	954,735	$	898,422
Advertising revenue	290,799		265,466		252,206
Membership subscription revenue	52,305		60,411		68,062
Other revenue	715		1,449		8,384
Total Ads and Leads revenue	1,124,908		1,282,061		1,227,074
Services revenue	118,033		381,256		289,948
Total Domestic revenue	1,242,941		1,663,317		1,517,022
International:
Consumer connection revenue	92,635		71,851		68,686
Service professional membership subscription revenue	22,548		28,192		32,367
Advertising and other revenue	624		995		1,242
Total International revenue	115,807		101,038		102,295
Total Angi Inc. revenue	$	1,358,748	$	1,764,355	$	1,619,317


Search
Advertising revenue:
Google advertising revenue	$	582,481	$	525,987	$	675,892
Non-Google advertising revenue	44,068		200,435		183,427
Total advertising revenue	626,549		726,422		859,319
Other revenue	2,489		5,009		14,027
Total Search revenue	$	629,038	$	731,431	$	873,346

Emerging & Other
Subscription revenue	$	343,539	$	368,401	$	367,159
Marketplace revenue	226,612		261,314		243,970
Roofing revenue	90,557		137,509		68,028
Media production and distribution revenue	15,847		31,555		44,517
Advertising revenue:
Non-Google advertising revenue	12,568		16,057		19,047
Google advertising revenue	946		2,192		2,981
Total advertising revenue	13,514		18,249		22,028
Service and other revenue	4,988		6,437		7,501
Total Emerging & Other revenue	$	695,057	$	823,465	$	753,203

The table below reflects Mosaic Group's revenue and a reconciliation of operating income (loss) to Adjusted EBITDA for the year ended December 31, 2023 and for each of the quarters in 2023:


	Quarters Ended								Year Ended
	March 31, 2023		June 30, 2023		September 30, 2023		December 31, 2023		December 31, 2023
	(In thousands)
Revenue	$	40,501	$	39,014	$	38,672	$	37,498	$	155,685

Operating income (loss)	$	6,243	$	4,160	$	(5,427)	$	6,588	$	11,564
Add:

Amortization of intangibles	149		149		149		48		495
Depreciation	5		4		3		3		15
Goodwill impairment	—		—		9,000		—		9,000
Adjusted EBITDA	$	6,397	$	4,313	$	3,725	$	6,639	$	21,074

Schedule of Revenue and Long-lived Assets, Excluding Goodwill and Intangible Assets, by Geography

Revenue by geography is based on where the customer is located. Geographic information about revenue and long-lived assets is presented below:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Revenue:
United States	$	3,798,229	$	4,720,504	$	3,184,653
All other countries	567,006		514,776		514,974
Total	$	4,365,235	$	5,235,280	$	3,699,627


	December 31,
	2023		2022
	(In thousands)
Long-lived assets (excluding goodwill and intangible assets):
United States	$	743,914	$	927,759
All other countries	10,964		11,015
Total	$	754,878	$	938,774

Schedule of Reconciliation of Adjusted EBITDA to Operating Income (Loss)

The following tables present operating (loss) income and Adjusted EBITDA by reportable segment:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Operating (loss) income:
Dotdash Meredith
Digital(c)	$	(16,656)	$	(66,629)	$	73,980
Print(d)	(3,500)		(54,448)		(6,527)
Other(e)(f)(g)	(130,582)		(67,014)		(60,277)
Total Dotdash Meredith	(150,738)		(188,091)		7,176
Angi Inc.
Ads and Leads	50,043		85,593		65,485
Services	(23,450)		(95,166)		(63,984)
Other(e)	(61,377)		(61,794)		(56,196)
International	8,286		(4,253)		(13,222)
Total Angi Inc.	(26,498)		(75,620)		(67,917)
Search	44,198		83,398		108,334
Emerging & Other	18,763		(156,839)		(31,334)
Corporate	(146,488)		(137,619)		(153,326)
Total	$	(260,763)	$	(474,771)	$	(137,067)

_____________________

(e) Other comprises unallocated corporate expenses.


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Adjusted EBITDA(h):
Dotdash Meredith
Digital(c)	$	242,969	$	186,696	$	91,179
Print(d)	64,226		31,135		2,639
Other(e)(f)(g)	(84,438)		(65,682)		(60,196)
Total Dotdash Meredith	222,757		152,149		33,622
Angi Inc.
Ads and Leads	147,357		168,952		136,260
Services	8,123		(52,126)		(48,203)
Other(e)	(50,076)		(49,866)		(46,066)
International	13,074		(481)		(6,615)
Total Angi Inc.	118,478		66,479		35,376
Search	44,283		83,486		108,381
Emerging & Other	41,839		(23,043)		25,872
Corporate	(90,873)		(79,521)		(95,985)
Total	$	336,484	$	199,550	$	107,266

_____________________


	Year Ended December 31, 2023
	Operating (Loss) Income		Stock-Based Compensation Expense		Depreciation		Amortization of Intangibles		Goodwill Impairment		Adjusted EBITDA(h)
	(In thousands)
Dotdash Meredith
Digital	$	(16,656)	$	8,159	$	24,772	$	226,694	$	—	$	242,969
Print	(3,500)		1,381		13,302		53,043		—		64,226
Other(e)(f)	(130,582)		13,961		32,183		—		—		(84,438)
Total Dotdash Meredith	(150,738)		23,501		70,257		279,737		—		222,757
Angi Inc.
Ads and Leads	50,043		23,145		66,211		7,958		—		147,357
Services	(23,450)		7,586		23,987		—		—		8,123
Other(e)	(61,377)		11,301		—		—		—		(50,076)
International	8,286		1,382		3,406		—		—		13,074
Total Angi Inc.	(26,498)		43,414		93,604		7,958		—		118,478
Search	44,198		—		85		—		—		44,283
Emerging & Other	18,763		1,805		3,996		8,275		9,000		41,839
Corporate (i)	(146,488)		48,461		7,154		—		—		(90,873)
Total	(260,763)		$	117,181	$	175,096	$	295,970	$	9,000	$	336,484
Interest expense	(157,632)
Unrealized gain on investment in MGM Resorts International	721,668
Other income, net	63,862
Earnings before income taxes	367,135
Income tax provision	(108,818)
Net earnings	258,317
Net loss attributable to noncontrolling interests	7,625
Net earnings attributable to IAC shareholders	$	265,942

_____________________

(i) Includes stock-based compensation expense for stock-based awards granted to employees of Corporate, Search and all Emerging & Other businesses other than Vivian Health and Roofing.


	Year Ended December 31, 2022
	Operating (Loss) Income		Stock-Based Compensation Expense		Depreciation		Amortization of Intangibles		Acquisition-related Contingent Consideration Fair Value Arrangements		Goodwill Impairment		Adjusted EBITDA(h)
	(In thousands)
Dotdash Meredith
Digital(c)	$	(66,629)	$	20,596	$	27,569	$	205,772	$	(612)	$	—	$	186,696
Print(d)	(54,448)		1,023		12,620		71,940		—		—		31,135
Other(e)(g)	(67,014)		136		1,196		—		—		—		(65,682)
Total Dotdash Meredith	(188,091)		21,755		41,385		277,712		(612)		—		152,149
Angi Inc.
Ads and Leads	85,593		19,972		52,737		10,650		—		—		168,952
Services	(95,166)		18,012		21,904		3,124		—		—		(52,126)
Other(e)	(61,794)		11,928		—		—		—		—		(49,866)
International	(4,253)		890		2,882		—		—		—		(481)
Total Angi Inc.	(75,620)		50,802		77,523		13,774		—		—		66,479
Search	83,398		—		88		—		—		—		83,486
Emerging & Other	(156,839)		2,373		2,438		16,232		—		112,753		(23,043)
Corporate(i)	(137,619)		48,546		9,552		—		—		—		(79,521)
Total	(474,771)		$	123,476	$	130,986	$	307,718	$	(612)	$	112,753	$	199,550
Interest expense	(110,165)
Unrealized loss on investment in MGM Resorts International	(723,515)
Other expense, net	(217,785)
Loss from continuing operations before income taxes	(1,526,236)
Income tax benefit	331,087
Net loss from continuing operations	(1,195,149)
Earnings from discontinued operations, net of tax	2,694
Net loss	(1,192,455)
Net loss attributable to noncontrolling interests	22,285
Net loss attributable to IAC shareholders	$	(1,170,170)


	Year Ended December 31, 2021
	Operating Income (Loss)		Stock-Based Compensation Expense		Depreciation		Amortization of Intangibles		Acquisition-related Contingent Consideration Fair Value Adjustments		Adjusted EBITDA(h)
	(In thousands)
Dotdash Meredith
Digital(c)	$	73,980	$	1,438	$	4,257	$	11,512	$	(8)	$	91,179
Print	(6,527)		—		1,827		7,339		—		2,639
Other(e)(g)	(60,277)		—		81		—		—		(60,196)
Total Dotdash Meredith	7,176		1,438		6,165		18,851		(8)		33,622
Angi Inc.
Ads and Leads	65,485		12,722		46,025		12,028		—		136,260
Services	(63,984)		4,672		7,049		4,060		—		(48,203)
Other(e)	(56,196)		10,121		—		9		—		(46,066)
International	(13,222)		656		5,951		—		—		(6,615)
Total Angi Inc.	(67,917)		28,171		59,025		16,097		—		35,376
Search	108,334		—		47		—		—		108,381
Emerging & Other	(31,334)		632		1,683		39,891		15,000		25,872
Corporate(i)	(153,326)		49,246		8,095		—		—		(95,985)
Total	(137,067)		$	79,487	$	75,015	$	74,839	$	14,992	$	107,266
Interest expense	(34,264)
Unrealized gain on investment in MGM Resorts International	789,283
Other income, net	111,854
Earnings from continuing operations before income taxes	729,806
Income tax provision	(138,990)
Net earnings from continuing operations	590,816
Loss from discontinued operations, net of tax	(1,831)
Net earnings	588,985
Net loss attributable to noncontrolling interests	8,562
Net earnings attributable to IAC shareholders	$	597,547

Schedule of Capital Expenditures by Segment

The following table presents capital expenditures by reportable segment:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Capital expenditures:




Dotdash Meredith	$	10,370	$	12,885	$	4,823
Angi Inc.	47,780		115,479		69,909
Search	—		17		178
Emerging & Other	2,046		10,982		1,200
Corporate	81,168		390		14,100
Total	$	141,364	$	139,753	$	90,210

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pay vs Performance Disclosure
Net income	$ 265,942	$ (1,170,170)	$ 597,547

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

SUBSEQUENT EVENT - Narrative (Details) $ in Millions	Feb. 15, 2024 USD ($)
Mosaic Group \| Subsequent Event
Subsequent Event [Line Items]
Disposal group, consideration	$ 160.0

SUBSEQUENT EVENT (Tables)

12 Months Ended

Dec. 31, 2023

Subsequent Events [Abstract]

Schedule of Segment Reporting Information

The following table presents revenue by reportable segment:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Revenue
Dotdash Meredith
Digital	$	892,426	$	931,482	$	367,134
Print	823,456		1,026,128		92,002
Intersegment eliminations(a)	(20,989)		(22,911)		(2,863)
Total Dotdash Meredith	1,694,893		1,934,699		456,273
Angi Inc.
Domestic:
Ads and Leads	1,124,908		1,282,061		1,227,074
Services	118,033		381,256		289,948
Total Domestic	1,242,941		1,663,317		1,517,022
International	115,807		101,038		102,295
Total Angi Inc.	1,358,748		1,764,355		1,619,317
Search	629,038		731,431		873,346
Emerging & Other	695,057		823,465		753,203
Intersegment eliminations(b)	(12,501)		(18,670)		(2,512)
Total	$	4,365,235	$	5,235,280	$	3,699,627

_____________________

(a) Intersegment eliminations primarily relates to Dotdash Meredith Digital performance marketing commissions earned for the placement of magazine subscriptions for Print.

The following table presents the revenue of the Company's segments disaggregated by type of service:


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Dotdash Meredith
Digital:
Advertising revenue	$	560,786	$	621,714	$	236,660
Performance marketing revenue	231,087		198,441		116,195
Licensing and other revenue	100,553		111,327		14,279
Total Digital revenue	892,426		931,482		367,134
Print:
Subscription revenue	329,357		422,700		34,634
Advertising revenue	203,210		260,282		13,678
Project and other revenue	128,354		154,807		16,414
Newsstand revenue	117,316		132,855		19,183
Performance marketing revenue	45,219		55,484		8,093
Total Print revenue	823,456		1,026,128		92,002


	Years Ended December 31,
	2023		2022		2021
	(In thousands)
Intersegment eliminations(a)	(20,989)		(22,911)		(2,863)
Total Dotdash Meredith revenue	$	1,694,893	$	1,934,699	$	456,273


Angi Inc.
Domestic:
Ads and Leads:
Consumer connection revenue	$	781,089	$	954,735	$	898,422
Advertising revenue	290,799		265,466		252,206
Membership subscription revenue	52,305		60,411		68,062
Other revenue	715		1,449		8,384
Total Ads and Leads revenue	1,124,908		1,282,061		1,227,074
Services revenue	118,033		381,256		289,948
Total Domestic revenue	1,242,941		1,663,317		1,517,022
International:
Consumer connection revenue	92,635		71,851		68,686
Service professional membership subscription revenue	22,548		28,192		32,367
Advertising and other revenue	624		995		1,242
Total International revenue	115,807		101,038		102,295
Total Angi Inc. revenue	$	1,358,748	$	1,764,355	$	1,619,317


Search
Advertising revenue:
Google advertising revenue	$	582,481	$	525,987	$	675,892
Non-Google advertising revenue	44,068		200,435		183,427
Total advertising revenue	626,549		726,422		859,319
Other revenue	2,489		5,009		14,027
Total Search revenue	$	629,038	$	731,431	$	873,346

Emerging & Other
Subscription revenue	$	343,539	$	368,401	$	367,159
Marketplace revenue	226,612		261,314		243,970
Roofing revenue	90,557		137,509		68,028
Media production and distribution revenue	15,847		31,555		44,517
Advertising revenue:
Non-Google advertising revenue	12,568		16,057		19,047
Google advertising revenue	946		2,192		2,981
Total advertising revenue	13,514		18,249		22,028
Service and other revenue	4,988		6,437		7,501
Total Emerging & Other revenue	$	695,057	$	823,465	$	753,203

The table below reflects Mosaic Group's revenue and a reconciliation of operating income (loss) to Adjusted EBITDA for the year ended December 31, 2023 and for each of the quarters in 2023:


	Quarters Ended								Year Ended
	March 31, 2023		June 30, 2023		September 30, 2023		December 31, 2023		December 31, 2023
	(In thousands)
Revenue	$	40,501	$	39,014	$	38,672	$	37,498	$	155,685

Operating income (loss)	$	6,243	$	4,160	$	(5,427)	$	6,588	$	11,564
Add:

Amortization of intangibles	149		149		149		48		495
Depreciation	5		4		3		3		15
Goodwill impairment	—		—		9,000		—		9,000
Adjusted EBITDA	$	6,397	$	4,313	$	3,725	$	6,639	$	21,074

ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME (Tables)

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following tables present the components of accumulated other comprehensive (loss) income, net of income tax.


	Year Ended December 31, 2023
	Foreign Currency Translation Adjustment		Unrealized Losses On Interest Rate Swaps		Unrealized Gains (Losses) On Available-For-Sale Marketable Debt Securities		Accumulated Other Comprehensive (Loss) Income
	(In thousands)
Balance at January 1	$	(13,186)	$	—	$	53	$	(13,133)
Other comprehensive income (loss) before reclassifications	2,915		2,958		(33)		5,840
Amounts reclassified to earnings	—		(3,654)		—		(3,654)
Net current period other comprehensive income (loss)	2,915		(696)		(33)		2,186
Accumulated other comprehensive loss allocated to noncontrolling interests during the period	5		—		—		5
Balance at December 31	$	(10,266)	$	(696)	$	20	$	(10,942)


	Year Ended December 31, 2022
	Foreign Currency Translation Adjustment		Unrealized Gains On Available-For-Sale Marketable Debt Securities		Accumulated Other Comprehensive Income (Loss)
	(In thousands)
Balance at January 1	$	4,397	$	—	$	4,397
Other comprehensive (loss) income before reclassifications	(17,636)		53		(17,583)
Amounts reclassified to earnings	42		—		42
Net current period other comprehensive (loss) income	(17,594)		53		(17,541)
Accumulated other comprehensive loss allocated to noncontrolling interests during the period	11		—		11
Balance at December 31	$	(13,186)	$	53	$	(13,133)


	Year Ended December 31, 2021
	Foreign Currency Translation Adjustment		Unrealized Gains (Losses) On Available-For-Sale Marketable Debt Securities		Accumulated Other Comprehensive (Loss) Income
	(In thousands)
Balance at January 1	$	(6,172)	$	2	$	(6,170)
Other comprehensive income (loss) before reclassifications	527		(2)		525
Amounts reclassified to earnings	10,032		—		10,032
Net current period other comprehensive income (loss)	10,559		(2)		10,557
Accumulated other comprehensive loss allocated to noncontrolling interests during the period	10		—		10
Balance at December 31	$	4,397	$	—	$	4,397

DOTDASH MEREDITH RESTRUCTURING CHARGES, TRANSACTION-RELATED EXPENSES AND CHANGE-IN-CONTROL PAYMENTS - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Charges incurred		$ 79,713	$ 80,200
Dotdash Meredith
Restructuring Cost and Reserve [Line Items]
Payments made for change in control	$ 60,100		87,400
Other
Restructuring Cost and Reserve [Line Items]
Charges incurred		$ 7,532
Transaction-related costs			$ 7,100	$ 30,200

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Investments in MGM Resorts International (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Investment in MGM Resorts International	$ 2,891,850	$ 2,170,182

GOODWILL AND INTANGIBLE ASSETS - Goodwill by Reporting Unit (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill
Balance at beginning of period	$ 3,030,168,000	$ 3,226,610,000
Deductions		(77,420,000)
Reporting Unit Allocation Adjustment		0
Impairment	(9,000,000)	(112,753,000)	$ 0
Foreign Exchange Translation	3,098,000	(6,269,000)
Balance at end of period	3,024,266,000	3,030,168,000	3,226,610,000
Accumulated Impairment Loss	(1,275,385,000)	(1,292,390,000)
Dotdash Meredith
Goodwill
Balance at beginning of period	1,497,642,000	1,567,843,000
Deductions		(70,201,000)
Reporting Unit Allocation Adjustment		0
Impairment	0	0
Foreign Exchange Translation	0	0
Balance at end of period	1,497,642,000	1,497,642,000	1,567,843,000
Accumulated Impairment Loss	(198,329,000)	(198,329,000)
Dotdash Meredith \| Digital
Goodwill
Balance at beginning of period	1,497,642,000	1,567,843,000
Deductions		(70,201,000)
Reporting Unit Allocation Adjustment		0
Impairment	0	0
Foreign Exchange Translation	0	0
Balance at end of period	1,497,642,000	1,497,642,000	1,567,843,000
Accumulated Impairment Loss	(198,329,000)	(198,329,000)
Angi Inc.
Goodwill
Balance at beginning of period	883,285,000	916,375,000
Deductions		(816,000)
Reporting Unit Allocation Adjustment		(26,005,000)
Impairment	0	0
Foreign Exchange Translation	3,098,000	(6,269,000)
Balance at end of period	886,383,000	883,285,000	916,375,000
Accumulated Impairment Loss	0	0
Angi Inc. \| Angi Inc.
Goodwill
Balance at beginning of period	0	916,375,000
Deductions		(816,000)
Reporting Unit Allocation Adjustment		(903,469,000)
Impairment		0
Foreign Exchange Translation		(12,090,000)
Balance at end of period		0	916,375,000
Accumulated Impairment Loss		0
Angi Inc. \| Ads and Leads
Goodwill
Balance at beginning of period	761,571,000	0
Deductions		0
Reporting Unit Allocation Adjustment		761,571,000
Impairment	0	0
Foreign Exchange Translation	0	0
Balance at end of period	761,571,000	761,571,000	0
Accumulated Impairment Loss	0	0
Angi Inc. \| Services
Goodwill
Balance at beginning of period	51,095,000	0
Deductions		0
Reporting Unit Allocation Adjustment		51,095,000
Impairment	0	0
Foreign Exchange Translation	0	0
Balance at end of period	51,095,000	51,095,000	0
Accumulated Impairment Loss	0	0
Angi Inc. \| International
Goodwill
Balance at beginning of period	70,619,000	0
Deductions		0
Reporting Unit Allocation Adjustment		64,798,000
Impairment	0	0
Foreign Exchange Translation	3,098,000	5,821,000
Balance at end of period	73,717,000	70,619,000	0
Accumulated Impairment Loss	0	0
Emerging & Other
Goodwill
Balance at beginning of period	649,241,000	742,392,000
Deductions		(6,403,000)
Reporting Unit Allocation Adjustment		26,005,000
Impairment	(9,000,000)	(112,753,000)
Foreign Exchange Translation	0	0
Balance at end of period	640,241,000	649,241,000	742,392,000
Accumulated Impairment Loss	(95,748,000)	(112,753,000)
Search
Goodwill
Balance at beginning of period	0	0
Deductions		0
Reporting Unit Allocation Adjustment		0
Impairment	0	0
Foreign Exchange Translation	0	0
Balance at end of period	0	0	$ 0
Accumulated Impairment Loss	$ (981,308,000)	$ (981,308,000)

INCOME TAXES - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current income tax provision (benefit):
Federal	$ 1,474	$ 777	$ (5,818)
State	8,998	4,712	4,751
Foreign	9,554	1,182	6,680
Current income tax provision (benefit)	20,026	6,671	5,613
Deferred income tax provision (benefit):
Federal	79,941	(252,022)	111,755
State	9,153	(44,335)	18,063
Foreign	(302)	(41,401)	3,559
Deferred income tax provision (benefit)	88,792	(337,758)	133,377
Income tax provision (benefit)	$ 108,818	$ (331,087)	$ 138,990

DISCONTINUED OPERATIONS - Components of Loss (Details) - USD ($) $ in Thousands	3 Months Ended	5 Months Ended	12 Months Ended
	Dec. 31, 2022	May 25, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating costs and expenses:
Loss from discontinued operations, net of taxes			$ 0	$ 2,694	$ (1,831)
Vimeo \| Discontinued Operations, Disposed of by Means Other than Sale, Spinoff
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		$ 145,514
Operating costs and expenses:
Cost of revenue (exclusive of depreciation shown separately below)		39,995
Selling and marketing expense		54,774
General and administrative expense		23,343
Product development expense		35,651
Depreciation		182
Amortization of intangibles		2,983
Total operating costs and expenses		156,928
Operating loss from discontinued operations		(11,414)
Interest expense		(140)
Other income, net		10,172
Loss from discontinued operations before taxes		(1,382)
Income tax provision		(449)
Loss from discontinued operations, net of taxes	$ (2,700)	$ (1,831)