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Document and Entity Information - USD ($)	9 Months Ended
Document and Entity Information - USD ($)	Sep. 30, 2011	Oct. 28, 2011
Entity Registrant Name	IAC/INTERACTIVECORP
Entity Central Index Key	0000891103
Document Type	10-Q
Document Period End Date	Sep. 30, 2011
Amendment Flag	true
Amendment Description	The Registrant hereby amends in its entirety Item 1. Consolidated Financial Statements and Item 4. Controls and Procedures contained in IAC/InterActiveCorp?s (the "Company") Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2011 (the "Original Form 10-Q"), as described below. On January 27, 2012, management and the Audit Committee (the "Committee") of the Board of Directors of the Company concluded that an error existed in the Company's previously issued financial statements relating to accounting for a deferred income tax liability that requires correction. During 2011, the Company undertook an analysis of the tax basis of certain businesses in connection with a review of its organizational structure. As a result of this review, the Company determined that the original deferred income tax provision recorded in 2002 in connection with a series of transactions, which included the exchange of certain of the Company's media businesses for certain other assets, was incorrectly calculated and incorrectly allocated to a former subsidiary. The correction of these errors as of September 30, 2011 and December 31, 2010 increased non-current deferred income tax liabilities and reduced shareholders' equity by $380.9 million. There is also a reclassification of non-current deferred income tax assets of $169.5 million and $110.5 million as of September 30, 2011 and December 31, 2010, respectively, which is required because non-current deferred income tax assets and liabilities of the same tax jurisdiction must be presented on the consolidated balance sheet on a net basis. Correcting these errors has no impact on the Company's consolidated statement of operations or consolidated statement of cash flows. This Amendment reflects the changes described above. No other information included in the Original Form 10-Q has been amended by this Form 10-Q/A to reflect any information or events subsequent to the filing of the Original Form 10-Q.
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float		$ 3,093,995,639
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q3
Common stock
Entity Common Stock, Shares Outstanding		76,243,245
Class B convertible common stock
Entity Common Stock, Shares Outstanding		5,789,499

CONSOLIDATED BALANCE SHEET - USD ($) $ in Thousands	Sep. 30, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 679,311	$ 742,099
Marketable securities	185,681	563,997
Accounts receivable, net of allowance of $8,954 and $8,848, respectively	154,401	119,581
Other current assets	104,748	118,308
Total current assets	1,124,141	1,543,985
Property and equipment, net	260,003	267,928
Goodwill	1,337,889	989,493
Intangible assets, net	398,040	245,044
Long-term investments	177,627	200,721
Other non-current assets	81,133	81,908
TOTAL ASSETS	3,378,833	3,329,079
LIABILITIES:
Accounts payable, trade	59,029	56,375
Deferred revenue	104,844	78,175
Accrued expenses and other current liabilities	329,405	222,323
Total current liabilities	493,278	356,873
Long-term debt	95,844	95,844
Income taxes payable	467,878	475,685
Deferred income taxes	264,909	270,501
Other long-term liabilities	17,832	20,239
Redeemable noncontrolling interests	19,095	59,869
Commitments and contingencies
SHAREHOLDERS' EQUITY:
Additional paid-in capital	11,207,897	11,047,884
Accumulated deficit	(526,551)	(652,018)
Accumulated other comprehensive income	12,137	17,546
Treasury stock 164,525,325 and 153,663,130 shares, respectively	(8,768,096)	(8,363,586)
Total IAC shareholders' equity	1,925,633	2,050,068
Noncontrolling interests	94,364
Total shareholders' equity	2,019,997	2,050,068
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	3,378,833	3,329,079
Common stock
SHAREHOLDERS' EQUITY:
Common stock	230	226
Class B convertible common stock
SHAREHOLDERS' EQUITY:
Common stock	$ 16	$ 16

CONSOLIDATED BALANCE SHEET (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2011	Dec. 31, 2010
Accounts receivable, allowance (in dollars)	$ 8,954	$ 8,848
Treasury stock, shares	164,525,325	153,663,130
Common stock
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized shares	1,600,000,000	1,600,000,000
Common stock, issued shares	230,334,809	225,873,751
Common stock, outstanding shares	76,177,484	84,078,621
Class B convertible common stock
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized shares	400,000,000	400,000,000
Common stock, issued shares	16,157,499	16,157,499
Common stock, outstanding shares	5,789,499	4,289,499

CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenue	$ 516,884	$ 412,966	$ 1,462,501	$ 1,185,388
Costs and expenses:
Cost of revenue (exclusive of depreciation shown separately below)	188,642	147,933	542,832	419,720
Selling and marketing expense	153,296	118,800	426,764	367,487
General and administrative expense	84,628	74,757	241,472	223,638
Product development expense	21,556	16,892	56,558	46,053
Depreciation	17,484	14,598	43,373	47,016
Amortization of intangibles	4,538	2,302	9,195	10,232
Total costs and expenses	470,144	375,282	1,320,194	1,114,146
Operating income	46,740	37,684	142,307	71,242
Equity in losses of unconsolidated affiliates	(15,078)	(547)	(25,677)	(27,162)
Other income, net	4,308	819	10,697	6,158
Earnings from continuing operations before income taxes	35,970	37,956	127,327	50,238
Income tax benefit (provision)	32,003	(15,516)	6,444	(26,974)
Earnings from continuing operations	67,973	22,440	133,771	23,264
Loss from discontinued operations, net of tax	(3,922)	(4,795)	(8,358)	(12,108)
Net earnings	64,051	17,645	125,413	11,156
Net loss (earnings) attributable to noncontrolling interests	922	(136)	54	1,239
Net earnings attributable to IAC shareholders	$ 64,973	$ 17,509	$ 125,467	$ 12,395
Per share information attributable to IAC shareholders:
Basic earnings per share from continuing operations (in dollars per share)	$ 0.81	$ 0.22	$ 1.52	$ 0.22
Diluted earnings per share from continuing operations (in dollars per share)	0.73	0.21	1.41	0.22
Basic earnings per share (in dollars per share)	0.77	0.17	1.43	0.11
Diluted earnings per share (in dollars per share)	$ 0.69	$ 0.16	$ 1.32	$ 0.11
Non-cash compensation expense by function:
Total non-cash compensation expense	$ 22,885	$ 17,058	$ 66,053	$ 59,651
Cost of revenue
Non-cash compensation expense by function:
Total non-cash compensation expense	1,449	1,113	3,682	3,065
Selling and marketing expense
Non-cash compensation expense by function:
Total non-cash compensation expense	1,241	889	3,476	2,843
General and administrative expense
Non-cash compensation expense by function:
Total non-cash compensation expense	18,118	13,629	53,444	49,448
Product development expense
Non-cash compensation expense by function:
Total non-cash compensation expense	$ 2,077	$ 1,427	$ 5,451	$ 4,295

CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities attributable to continuing operations:
Net earnings	$ 125,413	$ 11,156
Less: loss from discontinued operations, net of tax	8,358	12,108
Earnings from continuing operations	133,771	23,264
Adjustments to reconcile earnings from continuing operations to net cash provided by operating activities attributable to continuing operations:
Non-cash compensation expense	66,053	59,651
Depreciation	43,373	47,016
Amortization of intangibles	9,195	10,232
Deferred income taxes	(44,548)	6,113
Equity in losses of unconsolidated affiliates	25,677	27,162
Gain on sales of investments	(1,861)	(3,989)
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable	(27,494)	(18,967)
Other current assets	9,005	(5,888)
Accounts payable and other current liabilities	15,512	17,020
Income taxes payable	6,173	21,741
Deferred revenue	26,668	14,471
Other, net	8,042	10,250
Net cash provided by operating activities attributable to continuing operations	269,566	208,076
Cash flows from investing activities attributable to continuing operations:
Acquisitions, net of cash acquired	(278,469)	(17,334)
Capital expenditures	(27,346)	(31,327)
Proceeds from maturities and sales of marketable debt securities	528,170	607,127
Purchases of marketable debt securities	(154,718)	(600,993)
Proceeds from sales of investments	14,021	5,325
Purchases of long-term investments	(84,441)	(1,630)
Dividend received from Meetic		11,355
Other, net	(11,436)	(127)
Net cash used in investing activities attributable to continuing operations	(14,219)	(27,604)
Cash flows from financing activities attributable to continuing operations:
Purchase of treasury stock	(389,566)	(537,824)
Issuance of common stock, net of withholding taxes	62,045	13,263
Excess tax benefits from stock-based awards	22,878	6,551
Other, net	(3,699)	46
Net cash used in financing activities attributable to continuing operations	(308,342)	(517,964)
Total cash used in continuing operations	(52,995)	(337,492)
Total cash used in discontinued operations	(7,379)	(5,625)
Effect of exchange rate changes on cash and cash equivalents	(2,414)	(666)
Net decrease in cash and cash equivalents	(62,788)	(343,783)
Cash and cash equivalents at beginning of period	742,099	1,245,997
Cash and cash equivalents at end of period	$ 679,311	$ 902,214

THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

9 Months Ended

Sep. 30, 2011

THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

NOTE 1—THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Nature of Operations

IAC operates more than 50 leading and diversified Internet businesses across 30 countries...our mission is to harness the power of interactivity to make daily life easier and more productive for people all over the world. IAC includes the businesses comprising its Search segment; its Match and ServiceMagic segments; the businesses comprising its Media & Other segment; as well as investments in unconsolidated affiliates.

All references to "IAC," the "Company," "we," "our" or "us" in this report are to IAC/InterActiveCorp.

Basis of Presentation

The consolidated 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, whether through voting interests or variable interests. The Company's consolidated financial statements include one variable interest entity, in which the Company has a controlling financial interest through voting rights and is also the primary beneficiary. Intercompany transactions and accounts have been eliminated. Investments in entities in which the Company has the ability to exercise significant influence over the operating and financial matters of the investee, but does not have a controlling financial interest, are accounted for using the equity method and are included in "Long-term investments" in the accompanying consolidated balance sheet.

The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") for interim financial information and with the rules and regulations of the Securities and Exchange Commission ("SEC"). Accordingly, they do not include all of the information and notes required by U.S. GAAP for complete financial statements. In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation. Interim results are not necessarily indicative of the results that may be expected for a full year. The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's annual report on Form 10-K for the year ended December 31, 2010.

The accompanying unaudited consolidated statements of operations for the three and nine months ended September 30, 2010 and cash flows for the nine months ended September 30, 2010 have been reclassified to present Evite, Gifts.com, IAC Advertising Solutions and InstantAction, all of which were previously reported in IAC's Media & Other segment, as discontinued operations. In addition, certain other prior year amounts have been reclassified to conform to the current year presentation.

Accounting Estimates

The preparation of consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses and the related disclosure of contingent assets and liabilities. Actual amounts could differ materially from these estimates. On an ongoing basis, the Company evaluates its estimates and judgments including those related to the fair values of marketable securities and other investments, goodwill and indefinite-lived intangible assets, the useful lives and recoverability of definite-lived intangible assets and property and equipment, the carrying value of accounts receivable, including the determination of the allowance for doubtful accounts and other revenue related allowances, the reserves for income tax contingencies and the valuation allowances for deferred income tax assets and the fair value of and forfeiture rates for stock-based awards, among others. The Company bases its estimates and judgments on historical experience, its forecasts and budgets and other factors that the Company considers relevant.

Restatement of Previously Issued Consolidated Financial Statements

We have restated our consolidated financial statements as described in Note 14—RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS.

Certain Risks and Concentrations

A substantial portion of the Company's revenue is attributable to online advertising, the market for which is highly competitive and rapidly changing. Significant changes in this industry or changes in customer buying behavior or advertiser spending behavior could adversely affect our operating results. Most of the Company's online advertising revenue is attributable to a paid listing supply agreement with Google Inc. ("Google"), which expires on March 31, 2016. For the three and nine months ended September 30, 2011, revenue earned from Google was $242.9 million and $679.1 million, respectively. For the three and nine months ended September 30, 2010, revenue earned from Google was $176.8 million and $522.6 million, respectively. The majority of this revenue was earned by the businesses comprising the Search segment. Accounts receivable related to revenue earned from Google totaled $85.7 million at September 30, 2011 and $70.5 million at December 31, 2010.

- Definition

The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

+ References + Details

CONSOLIDATED FINANCIAL STATEMENT DETAILS

9 Months Ended

Sep. 30, 2011

CONSOLIDATED FINANCIAL STATEMENT DETAILS

CONSOLIDATED FINANCIAL STATEMENT DETAILS

NOTE 2—CONSOLIDATED FINANCIAL STATEMENT DETAILS

Property and equipment, net

		September 30, 2011			December 31, 2010

		(In thousands)
Buildings and leasehold improvements		$	235,524		$	234,328
Computer equipment and capitalized software			198,415			183,055
Furniture and other equipment			42,554			41,930
Projects in progress			5,393			2,944
Land			5,117			5,117

			487,003			467,374
Less: accumulated depreciation and amortization			(227,000	)		(199,446	)

	Property and equipment, net	$	260,003		$	267,928

Redeemable noncontrolling interests

		September 30, 2011			December 31, 2010

		(In thousands)
Balance at January 1		$	59,869		$	28,180
Purchase of noncontrolling interests			(5,779	)		—
Noncontrolling interests related to the acquisition of a business contributed to a consolidated Latin American venture			—			20,250
Noncontrolling interests created by a decrease in the ownership of a subsidiary contributed to a consolidated Latin American venture			—			15,750
Decrease in redeemable noncontrolling interests in a consolidated Latin American venture, resulting from the acquisition of Meetic S.A. ("Meetic")			(37,917	)		—
Noncontrolling interests related to other acquisitions			—			3,333
Net earnings (loss) attributable to noncontrolling interests			1,278			(5,007	)
Change in fair value of redeemable noncontrolling interests			1,516			(2,059	)
Other			128			(578	)

	Balance at end of period	$	19,095		$	59,869

Accumulated other comprehensive income

		September 30, 2011			December 31, 2010

		(In thousands)
Foreign currency translation adjustment, net of tax		$	(7,574	)	$	16,027
Unrealized gains on available-for-sale securities, net of tax			19,711			1,519

	Accumulated other comprehensive income, net of tax	$	12,137		$	17,546

Total Shareholders' Equity

	IAC Shareholders' Equity			Noncontrolling Interests			Total Shareholders' Equity

	(In thousands)
Balance at January 1, 2011	$	2,050,068		$	—		$	2,050,068
Net earnings (loss)		125,467			(1,332	)		124,135
Change in foreign currency translation adjustment, net of tax		(23,601	)		(6,212	)		(29,813	)
Change in net unrealized gains on available-for-sale securities, net of tax		18,192			—			18,192
Purchase of treasury stock		(401,587	)		—			(401,587	)
Receipt of stock from Liberty Media Corporation		(2,923	)		—			(2,923	)
Issuance of common stock upon exercise of stock options, vesting of restricted stock units and other, net of withholding taxes		62,139			—			62,139
Income tax provision related to the exercise of stock options, vesting of restricted units and other		33,991			—			33,991
Non-cash compensation expense		65,403			421			65,824
Acquisition of Meetic		—			101,487			101,487
Change in fair value of redeemable noncontrolling interests		(1,516	)		—			(1,516	)

Balance at September 30, 2011	$	1,925,633		$	94,364		$	2,019,997

Other income, net

		Three Months Ended September 30,						Nine Months Ended September 30,

		2011			2010			2011			2010
		(In thousands)
Interest income		$	1,224		$	1,550		$	3,676		$	4,851
Interest expense			(1,425	)		(1,321	)		(4,135	)		(3,967	)
Gain on sales of investments			317			—			1,861			3,989
Non-income tax refunds related to Match Europe			—			—			4,630			—
Foreign currency exchange gains, net			3,748			371			4,050			292
Other			444			219			615			993

	Other income, net	$	4,308		$	819		$	10,697		$	6,158

Comprehensive income (loss)

	Three Months Ended September 30,						Nine Months Ended September 30,

	2011			2010			2011			2010
	(In thousands)
Net earnings	$	64,051		$	17,645		$	125,413		$	11,156

Change in foreign currency translation adjustment, net of tax		(39,675	)		1,195			(29,813	)		(12,468	)
Change in net unrealized (losses) gains on available-for-sale securities, net of tax		(16,624	)		3,636			18,192			(4,106	)

Other comprehensive (loss) income		(56,299	)		4,831			(11,621	)		(16,574	)

Comprehensive income (loss)		7,752			22,476			113,792			(5,418	)

Net loss (earnings) attributable to noncontrolling interests		922			(136	)		54			1,239
Change in foreign currency translation adjustment, net of tax, attributable to noncontrolling interests		6,212			—			6,212			—

Comprehensive loss (income) attributable to noncontrolling interests		7,134			(136	)		6,266			1,239

Comprehensive income (loss) attributable to IAC shareholders	$	14,886		$	22,340		$	120,058		$	(4,179	)

The amount of unrealized gains and losses reclassified out of accumulated other comprehensive income into earnings, as a component of other income, net, is based on the specific identification method. Unrealized gains, net of tax, reclassified out of accumulated other comprehensive income into other income, net related to the maturities and sales of available-for-sale securities for the three and nine months ended September 30, 2011 were $0.6 million and $2.0 million, respectively. Unrealized gains, net of tax, reclassified out of accumulated other comprehensive income into other income, net related to the maturities and sales of available-for-sale securities for the three and nine months ended September 30, 2010 were $0.2 million and $2.9 million, respectively.

INCOME TAXES

9 Months Ended

Sep. 30, 2011

INCOME TAXES

INCOME TAXES

NOTE 3—INCOME TAXES

At the end of each interim period, the Company makes its best estimate of the annual expected effective tax rate and applies that rate to its ordinary year-to-date earnings or loss. The income tax provision or benefit related to significant, unusual, or extraordinary items, if applicable, that will be separately reported or reported net of their related tax effect are individually computed and recognized in the interim period in which those items occur. In addition, the effect of changes in enacted tax laws or rates, tax status, or judgment on the realizability of a beginning-of-the-year deferred tax asset in future years is recognized in the interim period in which the change occurs.

The computation of the annual expected effective tax rate at each interim period requires certain estimates and assumptions including, but not limited to, the expected pre-tax income (or loss) for the year, projections of the proportion of income (and/or loss) earned and taxed in foreign jurisdictions, permanent and temporary differences, and the likelihood of the realizability of deferred tax assets generated in the current year. The accounting estimates used to compute the provision or benefit for income taxes may change as new events occur, more experience is acquired, additional information is obtained or our tax environment changes. To the extent that the expected annual effective tax rate changes during a quarter, the effect of the change on prior quarters is included in income tax provision in the quarter in which the change occurs. Included in the income tax benefit for the three months ended September 30, 2011 is a benefit of $2.0 million due to a lower estimated annual effective tax rate from that applied to ordinary income from continuing operations through the six months ended June 30, 2011. The lower estimated annual effective tax rate was primarily due to an increase in foreign income taxed at lower rates.

For the three and nine months ended September 30, 2011, the Company recorded an income tax benefit for continuing operations of $32.0 million and $6.4 million, respectively, despite pre-tax income of $36.0 million and $127.3 million, respectively. The income tax benefit for the three months ended September 30, 2011 is due principally to the release of a previously established deferred tax liability of $43.6 million in connection with the acquisition of Meetic. The Company concluded that it intends to permanently reinvest outside the United States the earnings of Match's international operations related to Meetic, including the 2009 gain on the sale of Match Europe. This income tax benefit was partially offset by the nondeductible nature of the mark-to-market loss on Match's 27% equity method investment in Meetic that was recorded upon achieving control. The income tax benefit for the nine months ended September 30, 2011 is due principally to the release of previously established deferred tax liabilities, foreign income taxed at lower rates, and the reduction in state tax accruals resulting from income tax provision to tax return reconciliations and expirations of statutes of limitations, partially offset by interest on tax contingencies, states taxes, and the nondeductible nature of the mark-to-market loss on Match's 27% equity method investment in Meetic that was recorded upon achieving control.

For the three and nine months ended September 30, 2010, the Company recorded an income tax provision for continuing operations of $15.5 million and $27.0 million, respectively, which represent effective tax rates of 41% and 54%, respectively. The tax rate for the three months ended September 30, 2010 is higher than the federal statutory rate of 35% due principally to state taxes and interest on tax contingencies, partially offset by the reversal of a valuation allowance on the deferred tax asset related to an unconsolidated affiliate and foreign income taxed at lower rates. The tax rate for the nine months ended September 30, 2010 is higher than the federal statutory rate of 35% due principally to interest on tax contingencies, a valuation allowance on the deferred tax asset created by the impairment charge for an investment accounted for using the equity method, and state taxes, partially offset by foreign tax credits and the reversal of a valuation allowance on the deferred tax asset related to an unconsolidated affiliate.

At September 30, 2011 and December 31, 2010, unrecognized tax benefits, including interest, are $481.0 million and $487.6 million, respectively. Of the total unrecognized tax benefits at September 30, 2011, $467.9 million is included in "non-current income taxes payable," $12.3 million relates to deferred tax assets included in "other non-current assets" and $0.8 million is included in "accrued expenses and other current liabilities." Included in unrecognized tax benefits at September 30, 2011 is $92.0 million relating to tax positions for which the ultimate deductibility is highly certain but for which there is uncertainty about the timing of such deductibility. If unrecognized tax benefits at September 30, 2011 are subsequently recognized, $101.4 million and $212.6 million, net of related deferred tax assets and interest, would reduce income tax provision for continuing operations and discontinued operations, respectively. In addition, a continuing operations income tax provision of $4.5 million would be required upon the subsequent recognition of unrecognized tax benefits for an increase in the Company's valuation allowance against certain deferred tax assets.

The Company recognizes interest and, if applicable, penalties related to unrecognized tax benefits in income tax provision. Included in income tax provision for continuing operations and discontinued operations for the three months ended September 30, 2011 is a $2.2 million benefit and a $1.9 million expense, respectively, net of related deferred taxes of $1.4 million and $1.2 million, respectively, for interest on unrecognized tax benefits. Included in income tax provision for continuing operations and discontinued operations for the nine months ended September 30, 2011 is a $2.8 million expense and a $5.2 million expense, respectively, net of related deferred taxes of $1.8 million and $3.3 million, respectively, for interest on unrecognized tax benefits. At September 30, 2011 and December 31, 2010, the Company has accrued $111.0 million and $97.7 million, respectively, for the payment of interest. At September 30, 2011 and December 31, 2010, the Company has accrued $4.5 million and $5.0 million, respectively, for penalties.

The Company is routinely under audit by federal, state, local and foreign authorities in the area of income tax. These audits include questioning the timing and the amount of income and deductions and the allocation of income and deductions among various tax jurisdictions. The Internal Revenue Service ("IRS") has completed its review of the Company's tax returns for the years ended December 31, 2001 through 2006. The settlement has not yet been submitted to the Joint Committee of Taxation for approval. The IRS began its review of the Company's tax returns for the years ended December 31, 2007 through 2009 in July 2011. The statute of limitations for the years 2001 through 2007 has been extended to December 31, 2012. Various state and local jurisdictions are currently under examination, the most significant of which are California, New York and New York City for various tax years beginning with 2003. Income taxes payable include reserves considered sufficient to pay assessments that may result from examination of prior year tax returns. Changes to reserves from period to period and differences between amounts paid, if any, upon resolution of issues raised in audits and amounts previously provided may be material. Differences between the reserves for income tax contingencies and the amounts owed by the Company are recorded in the period they become known. The Company believes that it is reasonably possible that its unrecognized tax benefits could decrease by $53.4 million within twelve months of the current reporting date, of which approximately $8.1 million could decrease income tax provision, primarily due to settlements, expirations of statutes of limitations, and the reversal of deductible temporary differences that will primarily result in a corresponding decrease in net deferred tax assets. An estimate of other changes in unrecognized tax benefits, while potentially significant, cannot be made.

- 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/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Subparagraph (SX 210.4-08.(h))
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+ Details

BUSINESS COMBINATIONS

9 Months Ended

Sep. 30, 2011

BUSINESS COMBINATIONS

BUSINESS COMBINATIONS

NOTE 4—BUSINESS COMBINATIONS

Meetic Acquisition

In 2009, Match acquired a 27% ownership interest in Meetic, a European online dating company based in France. Match accounted for this interest under the equity method of accounting. During the third quarter of 2011, pursuant to its previously announced tender offer, Match acquired an additional 12.5 million shares of Meetic for $272.0 million in cash. These additional shares increased Match's voting interest and ownership interest in Meetic to 79% and 81%, respectively, resulting in Match obtaining a controlling financial interest in Meetic. Accordingly, this purchase was accounted for under the acquisition method of accounting and the financial results of Meetic are included within IAC's consolidated financial statements and the Match operating segment beginning September 1, 2011. For the three and nine months ended September 30, 2011, the Company included $11.1 million of revenue, net of a $9.6 million write-off of deferred revenue, and a net loss of $5.9 million in its consolidated statement of operations related to Meetic.

In connection with the acquisition, Match's 27% equity method investment in Meetic was reduced to its fair value of $132.7 million, resulting in a loss of $11.7 million, which is included within "Equity in losses of unconsolidated affiliates" in the accompanying consolidated statement of operations. Included in this loss is $3.2 million of foreign currency translation gains, which were reclassified out of accumulated other comprehensive income and into earnings. Additionally, Match measured and recorded the acquisition-date fair value of the 19% noncontrolling interests in Meetic, which totaled $101.5 million. The fair values of the 27% equity method investment and the noncontrolling interests were based on the tender offer price of €15.00 per share.

Meetic's fair value at the date of acquisition consists of the following components:

	(In thousands)

Shares acquired pursuant to tender offer	$	272,032
Equity method investment in Meetic		132,652
Noncontrolling interests, including the fair value of unvested stock awards attributable to pre-acquisition services		101,487

Total	$	506,171

The table below summarizes the allocation of Meetic's fair value at the date of acquisition to its assets and liabilities. While this allocation of fair value is substantially complete, it is still preliminary. The Company expects to finalize the allocation in the fourth quarter of 2011.

	(In thousands)

Cash and cash equivalents	$	74,562
Other current assets		22,356
Current deferred tax asset		13,742
Property and equipment		9,269
Goodwill		285,809
Intangible assets		165,250
Other assets		40,800

Total assets		611,788
Current liabilities		(49,382	)
Other liabilities		(2,575	)
Non-current deferred tax liabilities		(53,660	)

Net assets	$	506,171

The Company's purchase of the additional 54% interest in Meetic resulted in a significant portion of the purchase price being allocated to goodwill. The value of Meetic is its ability to generate revenue and cash flow in the future. Meetic's business model is similar to Match's businesses and we believe increasing our ownership stake allows us to leverage Match's skill in product development, marketing and technology innovation in the online dating space across Europe. We believe there are additional growth opportunities due to synergies between Match and Meetic.

Intangible assets relate to the following:

		(In thousands)		Weighted-Average Amortization Life (Years)

Indefinite-lived trade names		$	132,195	Indefinite
Customer lists			18,138	1
Technology			14,917	2

	Total	$	165,250

Meetic's other current assets, property and equipment, other assets, current liabilities and other liabilities were reviewed and adjusted to their fair values at the date of acquisition, as necessary. The current deferred tax asset primarily relates to the excess of tax basis over book basis on deferred revenue, which was recorded at fair value in conjunction with the acquisition. The fair value of the trade names was determined using an avoided royalty discounted cash flow analysis. Customer lists includes both paid subscribers and registered users who are not paid subscribers. The fair value relating to the paid subscribers was determined using an excess earnings methodology and the fair value relating to the registered users who are not paid subscribers was determined using a cost methodology. The fair value of the developed technology was determined using replacement cost methodology. The valuations of the intangible assets incorporate significant unobservable inputs and require estimates, including the amount and timing of future cash flows, royalty rates and discount rates. The non-current deferred tax liabilities primarily relate to the excess of book basis over tax basis on acquired intangible assets. None of the goodwill is tax deductible.

The unaudited pro forma financial information in the table below summarizes the combined results of IAC as if the acquisition of Meetic had occurred as of January 1, 2010. The 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 what the results would have been had the acquisition actually occurred on the aforementioned date.

	Three Months Ended September 30,				Nine Months Ended September 30,

	2011		2010		2011		2010
	(In thousands, except per share data)
Revenue	$	567,821	$	473,339	$	1,643,132	$	1,336,389
Net earnings (loss) attributable to IAC shareholders		80,836		23,569		148,779		(5,701	)
Basic earnings (loss) per share attributable to IAC shareholders	$	0.96	$	0.23	$	1.69	$	(0.05	)
Diluted earnings (loss) per share attributable to IAC shareholders	$	0.86	$	0.22	$	1.57	$	(0.05	)

OkCupid Acquisition

On January 20, 2011, Match acquired OkCupid for $50.0 million in cash, plus potential additional consideration of up to $40.0 million that was contingent upon OkCupid's 2011 earnings performance. During the second quarter of 2011, the provisions of this contingent consideration arrangement were amended. Pursuant to the amendment, $30.0 million was paid to the former owners of OkCupid, and a potential additional payment of up to $10.0 million is contingent upon revised performance goals. The fair value of the contingent consideration at September 30, 2011 is $10.0 million and is included in "Accrued expenses and other current liabilities" in the accompanying consolidated balance sheet. The Company estimated the fair value of the contingent consideration using its judgment of the likelihood of achieving the revised performance goals, which incorporates significant unobservable inputs.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 88-16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51, 52
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Appendix F
-Paragraph F4
-Subparagraph e

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Paragraph 67-73
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+ Details

GOODWILL AND INTANGIBLE ASSETS

9 Months Ended

Sep. 30, 2011

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS

NOTE 5—GOODWILL AND INTANGIBLE ASSETS

The balance of goodwill and intangible assets, net is as follows (in thousands):

		September 30, 2011		December 31, 2010

Goodwill		$	1,337,889	$	989,493
Intangible assets with indefinite lives			360,060		237,021
Intangible assets with definite lives, net			37,980		8,023

	Total goodwill and intangible assets, net	$	1,735,929	$	1,234,537

The following table presents the balance of goodwill by reporting unit, including the changes in the carrying value of goodwill, for the nine months ended September 30, 2011 (in thousands):

		Balance as of January 1, 2011		Additions		(Deductions)			Foreign Exchange Translation			Balance as of September 30, 2011

	IAC Search & Media	$	534,004	$	—	$	(93	)	$	—		$	533,911
	CityGrid Media		17,450		301		—			—			17,751

Search			551,454		301		(93	)		—			551,662
Match			297,974		369,596		—			(21,806	)		645,764
ServiceMagic			109,917		—		—			531			110,448
	Shoebuy		21,712		36		—			—			21,748
	Connected Ventures		8,436		—		(169	)		—			8,267

Media & Other			30,148		36		(169	)		—			30,015

	Total	$	989,493	$	369,933	$	(262	)	$	(21,275	)	$	1,337,889

Additions principally relate to the acquisitions of Meetic and OkCupid. Both the January 1, 2011 and September 30, 2011 goodwill balances include accumulated impairment losses of $916.9 million, $28.0 million and $11.6 million at IAC Search & Media, Shoebuy and Connected Ventures, respectively.

Intangible assets with indefinite lives relate to trade names and trademarks acquired in various acquisitions. At September 30, 2011, intangible assets with definite lives relate to the following (in thousands):

		Cost		Accumulated Amortization			Net

Customer lists		$	18,571	$	(2,834	)	$	15,737	1.0
Technology			16,574		(1,970	)		14,604	2.2
Supplier agreements			10,053		(5,471	)		4,582	6.2
Other			9,503		(6,446	)		3,057	3.6

	Total	$	54,701	$	(16,721	)	$	37,980

At December 31, 2010, intangible assets with definite lives relate to the following (in thousands):

		Cost		Accumulated Amortization			Net

Supplier agreements		$	7,100	$	(4,668	)	$	2,432	6.7
Customer lists			5,534		(5,298	)		236	1.3
Technology			3,100		(1,817	)		1,283	3.0
Other			8,871		(4,799	)		4,072	4.2

	Total	$	24,605	$	(16,582	)	$	8,023

Amortization of intangible assets with definite lives is computed either on a straight-line basis or based on the period in which the economic benefits of the asset will be realized. At September 30, 2011, amortization of intangible assets with definite lives for each of the next five years is estimated to be as follows (in thousands):

Years Ending September 30,

2012	$	26,794
2013		8,843
2014		1,085
2015		629
2016		629

	$	37,980

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

MARKETABLE SECURITIES

9 Months Ended

Sep. 30, 2011

MARKETABLE SECURITIES

MARKETABLE SECURITIES

NOTE 6—MARKETABLE SECURITIES

At September 30, 2011, available-for-sale marketable securities are as follows (in thousands):

			Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value

Corporate debt securities			$	67,833	$	116	$	(41	)	$	67,908
States of the U.S. and state political subdivisions				111,604		603		(66	)		112,141

	Total debt securities			179,437		719		(107	)		180,049
	Equity security			5,735		—		(103	)		5,632

		Total marketable securities	$	185,172	$	719	$	(210	)	$	185,681

At December 31, 2010, available-for-sale marketable securities are as follows (in thousands):

			Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value

Corporate debt securities			$	237,406	$	773	$	(16	)	$	238,163
States of the U.S. and state political subdivisions				110,478		373		(230	)		110,621
U.S. Treasury securities				199,881		18		—			199,899

	Total debt securities			547,765		1,164		(246	)		548,683
	Equity security			12,896		2,418		—			15,314

		Total marketable securities	$	560,661	$	3,582	$	(246	)	$	563,997

The net unrealized gains in the tables above are included in "Accumulated other comprehensive income" in the accompanying consolidated balance sheet.

The contractual maturities of debt securities classified as available-for-sale at September 30, 2011 are as follows (in thousands):

		Amortized Cost		Estimated Fair Value

Due in one year or less		$	98,145	$	98,410
Due after one year through five years			81,292		81,639

	Total	$	179,437	$	180,049

The following table summarizes investments in marketable debt securities (16 in total at September 30, 2011) that have been in a continuous unrealized loss position for less than twelve months (in thousands):

		September 30, 2011					December 31, 2010

		Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Corporate debt securities		$	16,995	$	(41	)	$	34,552	$	(16	)
States of the U.S. and state political subdivisions			26,224		(66	)		39,171		(230	)

	Total	$	43,219	$	(107	)	$	73,723	$	(246	)

At September 30, 2011 and December 31, 2010, there are no investments in marketable securities that have been in a continuous unrealized loss position for twelve months or longer.

Substantially all of the Company's marketable debt securities are rated investment grade. The gross unrealized losses on the marketable debt securities relate to changes in interest rates. Because the Company does not intend to sell any marketable debt securities and it is not more likely than not that the Company will be required to sell any marketable debt securities before recovery of their amortized cost bases, which may be maturity, the Company does not consider any of its marketable debt securities to be other-than-temporarily impaired at September 30, 2011. The gross unrealized loss on the marketable equity security is not considered other-than-temporarily impaired at September 30, 2011 because of the short duration and lack of severity of the loss.

The following table presents the proceeds from maturities and sales of available-for-sale marketable securities and the related gross realized gains and losses (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,

	2011		2010		2011			2010
	(In thousands)
Proceeds from maturities and sales of available-for-sale marketable securities	$	128,287	$	240,584	$	542,191		$	612,452
Gross realized gains		387		328		2,303			4,660
Gross realized losses		—		—		(18	)		(7	)

Gross realized gains and losses from the maturities and sales of marketable securities and from the sales of investments are included in "Other income, net" in the accompanying consolidated statement of operations.

- Definition

Tabular disclosure of investments in certain debt and equity securities (and certain other trading assets) which include all debt and equity securities (other than those equity securities accounted for under the equity or cost methods of accounting) with readily determinable fair values. Other trading assets include assets that are carried on the balance sheet at fair value and held for trading purposes. A debt security represents a creditor relationship with an enterprise that is in the form of a security. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities (and other trading assets).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 3, 19, 20, 21, 22, 137
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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+ Details

FAIR VALUE MEASUREMENTS

9 Months Ended

Sep. 30, 2011

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS

NOTE 7—FAIR VALUE MEASUREMENTS

The Company categorizes its assets and liabilities 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 prices for identical assets and liabilities in active markets.

•

Level 2: Other inputs that are observable directly or indirectly, such as quoted prices for similar assets or liabilities in active markets, quoted 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 value of the Company's level 2 financial assets is 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 a weighted 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 asset or liability. See below for a discussion of assets measured at fair value using level 3 inputs.

The following tables present the Company's assets and liabilities that are measured at fair value on a recurring basis:

		September 30, 2011

		Quoted Market Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
		(In thousands)
Assets:
Cash equivalents:
	Treasury and government agency money market funds	$	459,902	$	—	$	—	$	459,902
	Commercial paper		—		49,999		—		49,999
	Time deposits		—		4,700		—		4,700
Marketable securities:
	Corporate debt securities		—		67,908		—		67,908
	States of the U.S. and state political subdivisions		—		112,141		—		112,141
	Equity security		5,632		—		—		5,632
Long-term investments:
	Auction rate security		—		—		5,860		5,860
	Marketable equity securities		78,715		—		—		78,715

Total		$	544,249	$	234,748	$	5,860	$	784,857

Liabilities:
Contingent consideration arrangement		$	—	$	—	$	10,000	$	10,000

Total		$	—	$	—	$	10,000	$	10,000

		December 31, 2010

		Quoted Market Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
		(In thousands)
Assets:
Cash equivalents:
	Treasury and government agency money market funds	$	275,108	$	—	$	—	$	275,108
	Commercial paper		—		309,183		—		309,183
	Time deposits		—		26,050		—		26,050
Marketable securities:
	Corporate debt securities		—		238,163		—		238,163
	States of the U.S. and state political subdivisions		—		110,621		—		110,621
	U.S. Treasury securities		199,899		—		—		199,899
	Equity security		15,314		—		—		15,314
Long-term investments:
	Auction rate securities		—		—		13,100		13,100

Total		$	490,321	$	684,017	$	13,100	$	1,187,438

The following tables present the changes in the Company's assets and liabilities that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3):

		Three Months Ended September 30,

		2011					2010
		Auction Rate Security			Contingent Consideration Arrangement		Auction Rate Securities
		(In thousands)
Balance at July 1		$	8,680		$	10,000	$	11,255
Total net (losses) gains (realized and unrealized):
	Included in other comprehensive income		(2,820	)		—		1,095

Balance at September 30		$	5,860		$	10,000	$	12,350

		Nine Months Ended September 30,

		2011						2010
		Auction Rate Securities			Contingent Consideration Arrangement			Auction Rate Securities
		(In thousands)
Balance at January 1		$	13,100		$	—		$	12,635
Total net (losses) gains (realized and unrealized):
	Included in other comprehensive income		(2,240	)		—			(285	)
Fair value at date of acquisition			—			40,000			—
Settlements			(5,000	)		(30,000	)		—

Balance at September 30		$	5,860		$	10,000		$	12,350

There are no gains or losses included in earnings for the three and nine months ended September 30, 2011 and 2010, relating to the Company's assets and liabilities that are measured at fair value on a recurring basis using significant unobservable inputs.

Auction rate securities

The Company's auction rate securities are valued by discounting the estimated future cash flow streams of the securities over the lives of the securities. Credit spreads and other risk factors are also considered in establishing fair value. During the first quarter of 2011, one of the auction rate securities was redeemed at its par value of $5.0 million. The cost basis of the auction rate securities is $10.0 million and $15.0 million at September 30, 2011 and December 31, 2010, respectively, with gross unrealized losses of $4.1 million and $1.9 million at September 30, 2011 and December 31, 2010, respectively. The unrealized losses are included in "Accumulated other comprehensive income" in the accompanying consolidated balance sheet. At September 30, 2011, the remaining auction rate security is rated A/WR and matures in 2035. The Company does not consider the auction rate security to be other-than-temporarily impaired at September 30, 2011, due to its high credit rating and because the Company does not intend to sell this security and it is not more likely than not that the Company will be required to sell this security before recovery of its amortized cost basis, which may be maturity.

Long-term marketable equity securities

The cost basis of the long-term marketable equity securities at September 30, 2011 was $48.9 million, with gross unrealized gains of $34.5 million and a gross unrealized loss of $4.7 million, included in "Accumulated other comprehensive income" in the accompanying consolidated balance sheet. Because of the short duration of the loss, the Company does not consider this security to be other-than-temporarily impaired at September 30, 2011.

Contingent consideration arrangement

See Note 4 for information regarding the contingent consideration arrangement.

Assets measured at fair value on a nonrecurring basis

The Company's non-financial assets, such as goodwill, intangible assets and property and equipment, as well as equity and cost method investments, are measured at fair value only when an impairment charge is recognized. Such fair value measurements are based predominantly on Level 3 inputs.

During the first quarter of 2010, the Company recorded an $18.3 million impairment charge to write-down an investment accounted for using the equity method to fair value. The decline in value was determined to be other-than-temporary due to the investee's continued losses and negative operating cash flows. The Company estimated the fair value of its investment using a multiple of revenue approach. The impairment charge is included within "Equity in losses of unconsolidated affiliates" in the accompanying consolidated statement of operations.

- 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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44A, 44B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15C, 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-Subparagraph a-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15B
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 17-22, 27, 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13537-108611

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13433-108611

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13504-108611

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258

+ Details

FINANCIAL INSTRUMENTS

9 Months Ended

Sep. 30, 2011

FINANCIAL INSTRUMENTS

FINANCIAL INSTRUMENTS

NOTE 8—FINANCIAL INSTRUMENTS

The fair values of the financial instruments listed below have been determined by the Company using available market information and appropriate valuation methodologies.

	September 30, 2011						December 31, 2010

	Carrying Value			Fair Value			Carrying Value			Fair Value
	(In thousands)
Assets:
Cash and cash equivalents	$	679,311		$	679,311		$	742,099		$	742,099
Marketable securities		185,681			185,681			563,997			563,997
Auction rate securities		5,860			5,860			13,100			13,100
Long-term marketable equity securities		78,715			78,715			—			—
Notes receivable		3,332			2,939			3,316			2,818
Liabilities:
Contingent consideration arrangement		(10,000	)		(10,000	)		—			—
Long-term debt		(95,844	)		(87,502	)		(95,844	)		(83,363	)
Guarantee of an equity method investee's debt		(5,000	)		(5,000	)		—			—
Letters of credit and surety bond		N/A			(224	)		N/A			(362	)

The carrying value of cash equivalents approximates fair value due to their short-term maturity. The fair value of notes receivable is based on discounting the expected future cash flow streams using yields of the underlying credit. The fair value of long-term debt is estimated using quoted market prices or indices for similar liabilities and taking into consideration other factors such as credit quality and maturity. The carrying value and fair value of the guarantee of the equity method investee's debt represents the amount the Company expects to pay to settle this obligation. The fair value of the letters of credit and surety bond are based on the present value of the costs associated with maintaining these instruments over their expected term. See Note 6 for discussion of the fair value of marketable securities, Note 7 for discussion of the fair value of the auction rate securities and long-term marketable equity securities and Note 4 for discussion of the fair value of the contingent consideration arrangement.

At September 30, 2011 and December 31, 2010, the carrying values of the Company's investments accounted for under the cost method totaled $81.2 million and $39.0 million, respectively, and are included in "Long-term investments" in the accompanying consolidated balance sheet. The Company evaluates each cost method investment for impairment on a quarterly basis and recognizes an impairment loss if a decline in value is determined to be other-than-temporary. If the Company has not identified events or changes in circumstances that may have a significant adverse effect on the fair value of a cost method investment, then the fair value of such cost method investment is not estimated, as it is impracticable to do so.

EARNINGS PER SHARE

9 Months Ended

Sep. 30, 2011

EARNINGS PER SHARE

EARNINGS PER SHARE

NOTE 9—EARNINGS PER SHARE

The following tables set forth the computation of basic and diluted earnings per share attributable to IAC shareholders.

	Three Months Ended September 30,

	2011						2010
	Basic			Diluted			Basic			Diluted
	(In thousands, except per share data)
Numerator:
Earnings from continuing operations	$	67,973		$	67,973		$	22,440		$	22,440
Net loss (earnings) attributable to noncontrolling interests		922			922			(136	)		(136	)

Earnings from continuing operations attributable to IAC shareholders		68,895			68,895			22,304			22,304
Loss from discontinued operations, net of tax		(3,922	)		(3,922	)		(4,795	)		(4,795	)

Net earnings attributable to IAC shareholders	$	64,973		$	64,973		$	17,509		$	17,509

Denominator:
Weighted average basic shares outstanding		84,613			84,613			103,152			103,152
Dilutive securities including stock options, warrants and RSUs(a)(b)		—			9,129			—			3,076

Denominator for earnings per share—weighted average shares(a)(b)		84,613			93,742			103,152			106,228

Earnings per share attributable to IAC shareholders:
Earnings per share from continuing operations	$	0.81		$	0.73		$	0.22		$	0.21
Discontinued operations, net of tax		(0.04	)		(0.04	)		(0.05	)		(0.05	)

Earnings per share	$	0.77		$	0.69		$	0.17		$	0.16

	Nine Months Ended September 30,

	2011						2010
	Basic			Diluted			Basic			Diluted
	(In thousands, except per share data)
Numerator:
Earnings from continuing operations	$	133,771		$	133,771		$	23,264		$	23,264
Net loss attributable to noncontrolling interests		54			54			1,239			1,239

Earnings from continuing operations attributable to IAC shareholders		133,825			133,825			24,503			24,503
Loss from discontinued operations, net of tax		(8,358	)		(8,358	)		(12,108	)		(12,108	)

Net earnings attributable to IAC shareholders	$	125,467		$	125,467		$	12,395		$	12,395

Denominator:
Weighted average basic shares outstanding		87,898			87,898			109,580			109,580
Dilutive securities including stock options, warrants and RSUs(a)(b)		—			6,992			—			3,288

Denominator for earnings per share—weighted average shares(a)(b)		87,898			94,890			109,580			112,868

Earnings per share attributable to IAC shareholders:
Earnings per share from continuing operations	$	1.52		$	1.41		$	0.22		$	0.22
Discontinued operations, net of tax		(0.09	)		(0.09	)		(0.11	)		(0.11	)

Earnings per share	$	1.43		$	1.32		$	0.11		$	0.11

(a): 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 warrants and vesting of restricted stock units ("RSUs"). For the three and nine months ended September 30, 2011, approximately 0.8 million and 1.3 million shares, respectively, related to potentially dilutive securities are excluded from the calculation of diluted earnings per share because their inclusion would have been anti-dilutive. For the three and nine months ended September 30, 2010, approximately 21.3 million and 21.7 million shares, respectively, related to potentially dilutive securities are excluded from the calculation of diluted earnings per share because their inclusion would have been anti-dilutive.
(b): There are no performance-based stock units ("PSUs") included in the denominator for earnings per share as the performance conditions have not been met for the respective reporting periods. For the three and nine months ended September 30, 2011, approximately 3.3 million PSUs are excluded from the calculation of diluted earnings per share. For the three and nine months ended September 30, 2010, approximately 1.8 million PSUs are excluded from the calculation of diluted earnings per share.

SEGMENT INFORMATION

9 Months Ended

Sep. 30, 2011

SEGMENT INFORMATION

SEGMENT INFORMATION

NOTE 10—SEGMENT INFORMATION

The overall concept that IAC employs in determining its operating segments is to present the financial information in a manner consistent with how the chief operating decision maker and executive management view the businesses, 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. Entities included in discontinued operations are excluded from the tables below. Operating segments are combined for reporting purposes if they meet certain aggregation criteria, which principally relate to the similarity of their economic characteristics or, in the case of Media & Other, do not meet the quantitative thresholds that require presentation as separate operating segments.

		Three Months Ended September 30,						Nine Months Ended September 30,

		2011			2010			2011			2010
		(In thousands)
Revenue:
	Search	$	273,345		$	205,075		$	774,385		$	601,230
	Match		132,328			106,197			360,354			292,433
	ServiceMagic		55,061			48,397			157,458			140,128
	Media & Other		56,384			54,029			171,431			153,158
	Inter-segment elimination		(234	)		(732	)		(1,127	)		(1,561	)

	Total	$	516,884		$	412,966		$	1,462,501		$	1,185,388

		Three Months Ended September 30,						Nine Months Ended September 30,

		2011			2010			2011			2010
		(In thousands)
Operating Income (Loss):
	Search	$	45,023		$	28,872		$	144,420		$	91,546
	Match		36,677			38,126			101,105			77,318
	ServiceMagic		7,041			6,205			19,088			14,349
	Media & Other		(3,717	)		(2,824	)		(10,680	)		(9,662	)
	Corporate		(38,284	)		(32,695	)		(111,626	)		(102,309	)

	Total	$	46,740		$	37,684		$	142,307		$	71,242

		Three Months Ended September 30,						Nine Months Ended September 30,

		2011			2010			2011			2010
		(In thousands)
Operating Income Before Amortization:
	Search	$	45,848		$	29,268		$	145,802		$	92,852
	Match		40,207			39,354			107,530			83,264
	ServiceMagic		7,425			6,692			20,224			15,676
	Media & Other		(3,216	)		(2,161	)		(9,719	)		(7,175	)
	Corporate		(16,101	)		(16,109	)		(46,282	)		(43,492	)

	Total	$	74,163		$	57,044		$	217,555		$	141,125

		Three Months Ended September 30,				Nine Months Ended September 30,

		2011		2010		2011		2010
		(In thousands)
Depreciation:
	Search	$	11,170	$	8,249	$	24,518	$	27,264
	Match		2,481		2,612		7,059		8,518
	ServiceMagic		1,092		1,005		3,276		3,001
	Media & Other		662		576		2,089		1,682
	Corporate		2,079		2,156		6,431		6,551

	Total	$	17,484	$	14,598	$	43,373	$	47,016

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

		Three Months Ended September 30,				Nine Months Ended September 30,

		2011		2010		2011		2010
		(In thousands)
Revenue:
	United States	$	393,398	$	345,259	$	1,150,895	$	989,930
	All other countries		123,486		67,707		311,606		195,458

	Total	$	516,884	$	412,966	$	1,462,501	$	1,185,388

		September 30, 2011		December 31, 2010

		(In thousands)
Long-lived assets (excluding goodwill and intangible assets):
	United States	$	250,117	$	267,060
	All other countries		9,886		868

	Total	$	260,003	$	267,928

The Company's primary metric is Operating Income Before Amortization, which is defined as operating income excluding, if applicable: (1) non-cash compensation expense, (2) amortization and impairment of intangibles, (3) goodwill impairment, and (4) one-time items. The Company believes this measure is useful to investors because it represents the operating results from IAC's segments, taking into account depreciation, which it believes is an ongoing cost of doing business, but excluding the effects of any other non-cash expenses. Operating Income Before Amortization has certain limitations in that it does not take into account the impact to IAC's statement of operations of certain expenses, including non-cash compensation and acquisition related accounting. IAC endeavors to compensate for the limitations of the non-U.S. GAAP measure presented by providing the comparable U.S. GAAP measure with equal or greater prominence, financial statements prepared in accordance with U.S. GAAP, and descriptions of the reconciling items, including quantifying such items, to derive the non-U.S. GAAP measure.

The following tables reconcile Operating Income Before Amortization to operating income (loss) for the Company's reportable segments (in thousands):

	Three Months Ended September 30, 2011

	Operating Income Before Amortization			Non-Cash Compensation Expense			Amortization of Intangibles			Operating Income (Loss)
Search	$	45,848		$	—		$	(825	)	$	45,023
Match		40,207			(423	)		(3,107	)		36,677
ServiceMagic		7,425			—			(384	)		7,041
Media & Other		(3,216	)		(279	)		(222	)		(3,717	)
Corporate		(16,101	)		(22,183	)		—			(38,284	)

Total	$	74,163		$	(22,885	)	$	(4,538	)	$	46,740

	Three Months Ended September 30, 2010

	Operating Income Before Amortization			Non-Cash Compensation Expense			Amortization of Intangibles			Operating Income (Loss)
Search	$	29,268		$	(59	)	$	(337	)	$	28,872
Match		39,354			—			(1,228	)		38,126
ServiceMagic		6,692			—			(487	)		6,205
Media & Other		(2,161	)		(413	)		(250	)		(2,824	)
Corporate		(16,109	)		(16,586	)		—			(32,695	)

Total	$	57,044		$	(17,058	)	$	(2,302	)	$	37,684

	Nine Months Ended September 30, 2011

	Operating Income Before Amortization			Non-Cash Compensation Expense			Amortization of Intangibles			Operating Income (Loss)
Search	$	145,802		$	—		$	(1,382	)	$	144,420
Match		107,530			(423	)		(6,002	)		101,105
ServiceMagic		20,224			—			(1,136	)		19,088
Media & Other		(9,719	)		(286	)		(675	)		(10,680	)
Corporate		(46,282	)		(65,344	)		—			(111,626	)

Total	$	217,555		$	(66,053	)	$	(9,195	)	$	142,307

	Nine Months Ended September 30, 2010

	Operating Income Before Amortization			Non-Cash Compensation Expense			Amortization of Intangibles			Operating Income (Loss)
Search	$	92,852		$	(295	)	$	(1,011	)	$	91,546
Match		83,264			153			(6,099	)		77,318
ServiceMagic		15,676			—			(1,327	)		14,349
Media & Other		(7,175	)		(692	)		(1,795	)		(9,662	)
Corporate		(43,492	)		(58,817	)		—			(102,309	)

Total	$	141,125		$	(59,651	)	$	(10,232	)	$	71,242

- 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

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-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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+ Details

CONTINGENCIES

9 Months Ended

Sep. 30, 2011

CONTINGENCIES

CONTINGENCIES

NOTE 11—CONTINGENCIES

In the ordinary course of business, the Company is a party to various lawsuits. The Company establishes reserves 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 we believe an unfavorable outcome is not probable and, therefore, no reserve is established. Although management currently believes that resolving claims against us, including claims where an unfavorable outcome is reasonably possible, 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 tax contingencies, to assess the probability 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 3 for additional information related to income tax contingencies.

- Definition

The entire disclosure for loss and gain contingencies. Describes any existing condition, situation, or set of circumstances involving uncertainty as of the balance sheet date (or prior to issuance of the financial statements) as to a probable or reasonably possible loss incurred by an entity that will ultimately be resolved when one or more future events occur or fail to occur, and typically discloses the amount of loss recorded or a range of possible loss, or an assertion that no reasonable estimate can be made.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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+ Details

SUPPLEMENTAL CASH FLOW INFORMATION

9 Months Ended

Sep. 30, 2011

SUPPLEMENTAL CASH FLOW INFORMATION

SUPPLEMENTAL CASH FLOW INFORMATION

NOTE 12—SUPPLEMENTAL CASH FLOW INFORMATION

During 2010, IAC received a dividend of $11.4 million from Meetic, which the Company deemed to be a partial return of its investment. Accordingly, the dividend is reflected as a cash flow from an investing activity in the accompanying consolidated statement of cash flows.

Non-Cash Transactions for the Nine Months Ended September 30, 2011

On February 8, 2011, in connection with the tax-free exchange with Liberty Media Corporation in the fourth quarter of 2010, the Company received 0.1 million shares of IAC common stock, valued at $2.9 million, in fulfillment of post-closing working capital adjustments.

On January 31, 2011, IAC contributed The Daily Beast, previously reported in IAC's Media & Other segment, to a newly formed venture with Harman Newsweek called The Newsweek/Daily Beast Company. IAC and Harman Newsweek operate The Newsweek/Daily Beast Company jointly. IAC accounts for its interest in The Newsweek/Daily Beast Company under the equity method.

The consideration for the acquisition of OkCupid on January 20, 2011 includes a contingent consideration arrangement which is described in Note 4.

Non-Cash Transactions for the Nine Months Ended September 30, 2010

On March 10, 2010, Match and Meetic completed a transaction in which Match contributed its Latin American business ("Match Latam") and Meetic contributed its Latin American business ("Parperfeito") to a newly formed venture. These contributions, along with a $3.0 million payment from Match to Meetic, resulted in each party owning a 50% equity interest in the newly formed venture, which was valued at $72 million. No gain or loss was recognized on this transaction as the fair value of the consideration received by Match equaled the fair value of the assets exchanged.

SUBSEQUENT EVENTS

9 Months Ended

Sep. 30, 2011

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS

NOTE 13—SUBSEQUENT EVENTS

On November 2, 2011, IAC's Board of Directors declared a quarterly cash dividend of $0.12 per share of common and Class B common stock outstanding to be paid to stockholders of record as of the close of business on November 15, 2011, with a payment date of December 1, 2011. Based on the Company's current shares outstanding, the total amount of this dividend will be approximately $10.0 million.

On November 3, 2011, IAC entered into an agreement to sell its direct sponsored listings business ("Sendori") for total consideration of approximately $3.0 million, of which $2.3 million is contingent upon the collection of current outstanding accounts receivable. The transaction is expected to close on or around November 10, 2011. The assets and liabilities of Sendori included in the accompanying consolidated balance sheet at September 30, 2011 consist of approximately $4.0 million of current assets, $1.8 million of current liabilities and $2.4 million of noncontrolling interests.

The table below reflects Sendori's revenue and a reconciliation of operating income (loss) to Operating Income Before Amortization for each of the quarters in 2011 and 2010 (in thousands):

	Quarter Ended March 31, 2011		Quarter Ended June 30, 2011			Quarter Ended September 30, 2011

Revenue	$	9,239	$	6,982		$	5,277
Operating income (loss)		14		(770	)		(6,064	)
Amortization of intangibles		183		183			767
Operating Income Before Amortization		197		(587	)		(5,297	)

Included in the third quarter of 2011 is a write-down of $4.9 million in capitalized software costs and an intangible asset impairment charge of $0.6 million recorded in connection with the planned exit from the direct sponsored listings business.

	Quarter Ended March 31, 2010			Quarter Ended June 30, 2010			Quarter Ended September 30, 2010		Quarter Ended December 31, 2010

Revenue	$	9,682		$	6,907		$	9,903	$	9,984
Operating (loss) income		(69	)		(758	)		348		(434	)
Amortization of intangibles		183			183			183		183
Non-cash compensation expense		147			88			59		39
Operating Income Before Amortization		261			(487	)		590		(212	)

RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS

9 Months Ended

Sep. 30, 2011

RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS

RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS

NOTE 14—RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS

Restatement of Prior Period Consolidated Financial Statements

The September 30, 2011 and December 31, 2010 consolidated balance sheets have been restated to correct the deferred income tax liability relating to a gain recorded in 2002 in connection with a series of transactions, which included the exchange of certain of the Company's media businesses for certain other assets, and the subsequent incorrect allocation of a portion of the deferred income taxes that were recorded in 2002 to a former subsidiary. These errors were identified during an analysis of the tax basis of certain businesses in connection with a 2011 review of the Company's organizational structure. Accordingly, the Company has restated the financial statements referenced above to correct these errors. The correction of these errors as of September 30, 2011 and December 31, 2010 increased non-current deferred income tax liabilities and reduced shareholders' equity by $380.9 million. Reclassifications of certain other deferred income tax balances as of September 30, 2011 and December 31, 2010 have also been recorded. Correcting these errors has no impact on the Company's consolidated statement of operations or consolidated statement of cash flows.

Consolidated Balance Sheet as of September 30, 2011:

	As originally reported		Effect of restatement			As restated

	(In thousands)
Other non-current assets	$	250,627	$	(169,494	)	$	81,133
Total Assets		3,548,327		(169,494	)		3,378,833
Deferred income taxes		—		264,909			264,909
Other long-term liabilities		71,370		(53,538	)		17,832
Additional paid-in capital		11,588,762		(380,865	)		11,207,897
Total IAC shareholders' equity		2,306,498		(380,865	)		1,925,633
Total shareholders' equity		2,400,862		(380,865	)		2,019,997
Total Liabilities and Shareholders' Equity		3,548,327		(169,494	)		3,378,833

Consolidated Balance Sheet as of December 31, 2010:

	As originally reported		Effect of restatement			As restated

	(In thousands)
Other non-current assets	$	192,383	$	(110,475	)	$	81,908
Total Assets		3,439,554		(110,475	)		3,329,079
Deferred income taxes		—		270,501			270,501
Other long-term liabilities		20,350		(111	)		20,239
Additional paid-in capital		11,428,749		(380,865	)		11,047,884
Total IAC shareholders' equity		2,430,933		(380,865	)		2,050,068
Total shareholders' equity		2,430,933		(380,865	)		2,050,068
Total Liabilities and Shareholders' Equity		3,439,554		(110,475	)		3,329,079

- Definition

The entire disclosure for reporting accounting changes and error corrections. It includes the conveyance of information necessary for a user of the Company's financial information to understand all aspects and required disclosure information concerning all changes and error corrections reported in the Company's financial statements for the period.

+ References + Details

THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

9 Months Ended

Sep. 30, 2011

THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Accounting Estimates

CONSOLIDATED FINANCIAL STATEMENT DETAILS (Tables)

9 Months Ended

Sep. 30, 2011

CONSOLIDATED FINANCIAL STATEMENT DETAILS

Schedule of property and equipment, net

		September 30, 2011			December 31, 2010

		(In thousands)
Buildings and leasehold improvements		$	235,524		$	234,328
Computer equipment and capitalized software			198,415			183,055
Furniture and other equipment			42,554			41,930
Projects in progress			5,393			2,944
Land			5,117			5,117

			487,003			467,374
Less: accumulated depreciation and amortization			(227,000	)		(199,446	)

	Property and equipment, net	$	260,003		$	267,928

Schedule of redeemable noncontrolling interests

		September 30, 2011			December 31, 2010

		(In thousands)
Balance at January 1		$	59,869		$	28,180
Purchase of noncontrolling interests			(5,779	)		—
Noncontrolling interests related to the acquisition of a business contributed to a consolidated Latin American venture			—			20,250
Noncontrolling interests created by a decrease in the ownership of a subsidiary contributed to a consolidated Latin American venture			—			15,750
Decrease in redeemable noncontrolling interests in a consolidated Latin American venture, resulting from the acquisition of Meetic S.A. ("Meetic")			(37,917	)		—
Noncontrolling interests related to other acquisitions			—			3,333
Net earnings (loss) attributable to noncontrolling interests			1,278			(5,007	)
Change in fair value of redeemable noncontrolling interests			1,516			(2,059	)
Other			128			(578	)

	Balance at end of period	$	19,095		$	59,869

Schedule of accumulated other comprehensive income

		September 30, 2011			December 31, 2010

		(In thousands)
Foreign currency translation adjustment, net of tax		$	(7,574	)	$	16,027
Unrealized gains on available-for-sale securities, net of tax			19,711			1,519

	Accumulated other comprehensive income, net of tax	$	12,137		$	17,546

Schedule of total shareholders' equity

	IAC Shareholders' Equity			Noncontrolling Interests			Total Shareholders' Equity

	(In thousands)
Balance at January 1, 2011	$	2,050,068		$	—		$	2,050,068
Net earnings (loss)		125,467			(1,332	)		124,135
Change in foreign currency translation adjustment, net of tax		(23,601	)		(6,212	)		(29,813	)
Change in net unrealized gains on available-for-sale securities, net of tax		18,192			—			18,192
Purchase of treasury stock		(401,587	)		—			(401,587	)
Receipt of stock from Liberty Media Corporation		(2,923	)		—			(2,923	)
Issuance of common stock upon exercise of stock options, vesting of restricted stock units and other, net of withholding taxes		62,139			—			62,139
Income tax provision related to the exercise of stock options, vesting of restricted units and other		33,991			—			33,991
Non-cash compensation expense		65,403			421			65,824
Acquisition of Meetic		—			101,487			101,487
Change in fair value of redeemable noncontrolling interests		(1,516	)		—			(1,516	)

Balance at September 30, 2011	$	1,925,633		$	94,364		$	2,019,997

Schedule of other income, net

		Three Months Ended September 30,						Nine Months Ended September 30,

		2011			2010			2011			2010
		(In thousands)
Interest income		$	1,224		$	1,550		$	3,676		$	4,851
Interest expense			(1,425	)		(1,321	)		(4,135	)		(3,967	)
Gain on sales of investments			317			—			1,861			3,989
Non-income tax refunds related to Match Europe			—			—			4,630			—
Foreign currency exchange gains, net			3,748			371			4,050			292
Other			444			219			615			993

	Other income, net	$	4,308		$	819		$	10,697		$	6,158

Schedule of comprehensive income (loss)

	Three Months Ended September 30,						Nine Months Ended September 30,

	2011			2010			2011			2010
	(In thousands)
Net earnings	$	64,051		$	17,645		$	125,413		$	11,156

Change in foreign currency translation adjustment, net of tax		(39,675	)		1,195			(29,813	)		(12,468	)
Change in net unrealized (losses) gains on available-for-sale securities, net of tax		(16,624	)		3,636			18,192			(4,106	)

Other comprehensive (loss) income		(56,299	)		4,831			(11,621	)		(16,574	)

Comprehensive income (loss)		7,752			22,476			113,792			(5,418	)

Net loss (earnings) attributable to noncontrolling interests		922			(136	)		54			1,239
Change in foreign currency translation adjustment, net of tax, attributable to noncontrolling interests		6,212			—			6,212			—

Comprehensive loss (income) attributable to noncontrolling interests		7,134			(136	)		6,266			1,239

Comprehensive income (loss) attributable to IAC shareholders	$	14,886		$	22,340		$	120,058		$	(4,179	)

- Definition

Tabular disclosure of redeemable noncontrolling interest (as defined) included in the statement of financial position as either a liability or temporary equity. As of the date of the statement of financial position, such redeemable noncontrolling interest is currently redeemable, as defined, for cash or other assets of the entity at (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number D-98
-Paragraph 40
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number D-98
-Paragraph 41
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number D-98
-Paragraph 42
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number D-98
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number D-98
-Paragraph 44
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 25
-Appendix A

+ Details

BUSINESS COMBINATIONS (Tables)

9 Months Ended

Sep. 30, 2011

BUSINESS COMBINATIONS

Schedule of fair value at date of acquisition

	(In thousands)

Shares acquired pursuant to tender offer	$	272,032
Equity method investment in Meetic		132,652
Noncontrolling interests, including the fair value of unvested stock awards attributable to pre-acquisition services		101,487

Total	$	506,171

Schedule of allocation of the purchase price

	(In thousands)

Cash and cash equivalents	$	74,562
Other current assets		22,356
Current deferred tax asset		13,742
Property and equipment		9,269
Goodwill		285,809
Intangible assets		165,250
Other assets		40,800

Total assets		611,788
Current liabilities		(49,382	)
Other liabilities		(2,575	)
Non-current deferred tax liabilities		(53,660	)

Net assets	$	506,171

Schedule of intangible assets acquired

		(In thousands)		Weighted-Average Amortization Life (Years)

Indefinite-lived trade names		$	132,195	Indefinite
Customer lists			18,138	1
Technology			14,917	2

	Total	$	165,250

Schedule of pro forma financial information

	Three Months Ended September 30,				Nine Months Ended September 30,

	2011		2010		2011		2010
	(In thousands, except per share data)
Revenue	$	567,821	$	473,339	$	1,643,132	$	1,336,389
Net earnings (loss) attributable to IAC shareholders		80,836		23,569		148,779		(5,701	)
Basic earnings (loss) per share attributable to IAC shareholders	$	0.96	$	0.23	$	1.69	$	(0.05	)
Diluted earnings (loss) per share attributable to IAC shareholders	$	0.86	$	0.22	$	1.57	$	(0.05	)

- Definition

Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate.

+ References + Details

GOODWILL AND INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2011

GOODWILL AND INTANGIBLE ASSETS

Schedule of balance of goodwill and intangible assets, net

		September 30, 2011		December 31, 2010

Goodwill		$	1,337,889	$	989,493
Intangible assets with indefinite lives			360,060		237,021
Intangible assets with definite lives, net			37,980		8,023

	Total goodwill and intangible assets, net	$	1,735,929	$	1,234,537

Schedule of balance of goodwill by reporting unit, including the changes in the carrying value of goodwill

		Balance as of January 1, 2011		Additions		(Deductions)			Foreign Exchange Translation			Balance as of September 30, 2011

	IAC Search & Media	$	534,004	$	—	$	(93	)	$	—		$	533,911
	CityGrid Media		17,450		301		—			—			17,751

Search			551,454		301		(93	)		—			551,662
Match			297,974		369,596		—			(21,806	)		645,764
ServiceMagic			109,917		—		—			531			110,448
	Shoebuy		21,712		36		—			—			21,748
	Connected Ventures		8,436		—		(169	)		—			8,267

Media & Other			30,148		36		(169	)		—			30,015

	Total	$	989,493	$	369,933	$	(262	)	$	(21,275	)	$	1,337,889

Schedule of intangible assets with definite lives

At September 30, 2011, intangible assets with definite lives relate to the following (in thousands):

		Cost		Accumulated Amortization			Net

Customer lists		$	18,571	$	(2,834	)	$	15,737	1.0
Technology			16,574		(1,970	)		14,604	2.2
Supplier agreements			10,053		(5,471	)		4,582	6.2
Other			9,503		(6,446	)		3,057	3.6

	Total	$	54,701	$	(16,721	)	$	37,980

At December 31, 2010, intangible assets with definite lives relate to the following (in thousands):

		Cost		Accumulated Amortization			Net

Supplier agreements		$	7,100	$	(4,668	)	$	2,432	6.7
Customer lists			5,534		(5,298	)		236	1.3
Technology			3,100		(1,817	)		1,283	3.0
Other			8,871		(4,799	)		4,072	4.2

	Total	$	24,605	$	(16,582	)	$	8,023

Schedule of estimated amortization of intangible assets with definite lives

Years Ending September 30,

2012	$	26,794
2013		8,843
2014		1,085
2015		629
2016		629

	$	37,980

- Definition

Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill.

+ References + Details

MARKETABLE SECURITIES (Tables)

9 Months Ended

Sep. 30, 2011

MARKETABLE SECURITIES

Schedule of available-for-sale marketable securities

At September 30, 2011, available-for-sale marketable securities are as follows (in thousands):

			Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value

Corporate debt securities			$	67,833	$	116	$	(41	)	$	67,908
States of the U.S. and state political subdivisions				111,604		603		(66	)		112,141

	Total debt securities			179,437		719		(107	)		180,049
	Equity security			5,735		—		(103	)		5,632

		Total marketable securities	$	185,172	$	719	$	(210	)	$	185,681

At December 31, 2010, available-for-sale marketable securities are as follows (in thousands):

			Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value

Corporate debt securities			$	237,406	$	773	$	(16	)	$	238,163
States of the U.S. and state political subdivisions				110,478		373		(230	)		110,621
U.S. Treasury securities				199,881		18		—			199,899

	Total debt securities			547,765		1,164		(246	)		548,683
	Equity security			12,896		2,418		—			15,314

		Total marketable securities	$	560,661	$	3,582	$	(246	)	$	563,997

Schedule of contractual maturities of debt securities classified as available-for-sale

The contractual maturities of debt securities classified as available-for-sale at September 30, 2011 are as follows (in thousands):

		Amortized Cost		Estimated Fair Value

Due in one year or less		$	98,145	$	98,410
Due after one year through five years			81,292		81,639

	Total	$	179,437	$	180,049

Summary of investments with continuous unrealized loss position for less than twelve months

		September 30, 2011					December 31, 2010

		Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Corporate debt securities		$	16,995	$	(41	)	$	34,552	$	(16	)
States of the U.S. and state political subdivisions			26,224		(66	)		39,171		(230	)

	Total	$	43,219	$	(107	)	$	73,723	$	(246	)

Schedule of proceeds from maturities and sales of available-for-sale marketable securities and the related gross realized gains and losses

	Three Months Ended September 30,				Nine Months Ended September 30,

	2011		2010		2011			2010
	(In thousands)
Proceeds from maturities and sales of available-for-sale marketable securities	$	128,287	$	240,584	$	542,191		$	612,452
Gross realized gains		387		328		2,303			4,660
Gross realized losses		—		—		(18	)		(7	)

- Definition

Tabular disclosure of available-for-sale securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-1
-Paragraph 21
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 17
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 19, 20, 21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563

Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27198-111563

Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Paragraph 2
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Paragraph 2
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
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-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803

+ Details

FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2011

FAIR VALUE MEASUREMENTS

Schedule of assets and liabilities measured at fair value on a recurring basis

		September 30, 2011

		Quoted Market Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
		(In thousands)
Assets:
Cash equivalents:
	Treasury and government agency money market funds	$	459,902	$	—	$	—	$	459,902
	Commercial paper		—		49,999		—		49,999
	Time deposits		—		4,700		—		4,700
Marketable securities:
	Corporate debt securities		—		67,908		—		67,908
	States of the U.S. and state political subdivisions		—		112,141		—		112,141
	Equity security		5,632		—		—		5,632
Long-term investments:
	Auction rate security		—		—		5,860		5,860
	Marketable equity securities		78,715		—		—		78,715

Total		$	544,249	$	234,748	$	5,860	$	784,857

Liabilities:
Contingent consideration arrangement		$	—	$	—	$	10,000	$	10,000

Total		$	—	$	—	$	10,000	$	10,000

		December 31, 2010

		Quoted Market Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
		(In thousands)
Assets:
Cash equivalents:
	Treasury and government agency money market funds	$	275,108	$	—	$	—	$	275,108
	Commercial paper		—		309,183		—		309,183
	Time deposits		—		26,050		—		26,050
Marketable securities:
	Corporate debt securities		—		238,163		—		238,163
	States of the U.S. and state political subdivisions		—		110,621		—		110,621
	U.S. Treasury securities		199,899		—		—		199,899
	Equity security		15,314		—		—		15,314
Long-term investments:
	Auction rate securities		—		—		13,100		13,100

Total		$	490,321	$	684,017	$	13,100	$	1,187,438

Schedule of changes in assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)

		Three Months Ended September 30,

		2011					2010
		Auction Rate Security			Contingent Consideration Arrangement		Auction Rate Securities
		(In thousands)
Balance at July 1		$	8,680		$	10,000	$	11,255
Total net (losses) gains (realized and unrealized):
	Included in other comprehensive income		(2,820	)		—		1,095

Balance at September 30		$	5,860		$	10,000	$	12,350

		Nine Months Ended September 30,

		2011						2010
		Auction Rate Securities			Contingent Consideration Arrangement			Auction Rate Securities
		(In thousands)
Balance at January 1		$	13,100		$	—		$	12,635
Total net (losses) gains (realized and unrealized):
	Included in other comprehensive income		(2,240	)		—			(285	)
Fair value at date of acquisition			—			40,000			—
Settlements			(5,000	)		(30,000	)		—

Balance at September 30		$	5,860		$	10,000		$	12,350

FINANCIAL INSTRUMENTS (Tables)

9 Months Ended

Sep. 30, 2011

FINANCIAL INSTRUMENTS

Schedule of fair values of the financial instruments

	September 30, 2011						December 31, 2010

	Carrying Value			Fair Value			Carrying Value			Fair Value
	(In thousands)
Assets:
Cash and cash equivalents	$	679,311		$	679,311		$	742,099		$	742,099
Marketable securities		185,681			185,681			563,997			563,997
Auction rate securities		5,860			5,860			13,100			13,100
Long-term marketable equity securities		78,715			78,715			—			—
Notes receivable		3,332			2,939			3,316			2,818
Liabilities:
Contingent consideration arrangement		(10,000	)		(10,000	)		—			—
Long-term debt		(95,844	)		(87,502	)		(95,844	)		(83,363	)
Guarantee of an equity method investee's debt		(5,000	)		(5,000	)		—			—
Letters of credit and surety bond		N/A			(224	)		N/A			(362	)

- Definition

Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 14
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15
-Subparagraph b-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph a, c(1), c(2), c(3), d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 18
-Subparagraph c(2), d, e, f
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 19
-Subparagraph a, b, c(1), d(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13433-108611

Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13467-108611

Reference 9: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
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-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13476-108611

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
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-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6447952&loc=d3e13220-108610

+ Details

EARNINGS PER SHARE (Tables)

9 Months Ended

Sep. 30, 2011

EARNINGS PER SHARE

Computation of basic and diluted earnings per share

	Three Months Ended September 30,

	2011						2010
	Basic			Diluted			Basic			Diluted
	(In thousands, except per share data)
Numerator:
Earnings from continuing operations	$	67,973		$	67,973		$	22,440		$	22,440
Net loss (earnings) attributable to noncontrolling interests		922			922			(136	)		(136	)

Earnings from continuing operations attributable to IAC shareholders		68,895			68,895			22,304			22,304
Loss from discontinued operations, net of tax		(3,922	)		(3,922	)		(4,795	)		(4,795	)

Net earnings attributable to IAC shareholders	$	64,973		$	64,973		$	17,509		$	17,509

Denominator:
Weighted average basic shares outstanding		84,613			84,613			103,152			103,152
Dilutive securities including stock options, warrants and RSUs(a)(b)		—			9,129			—			3,076

Denominator for earnings per share—weighted average shares(a)(b)		84,613			93,742			103,152			106,228

Earnings per share attributable to IAC shareholders:
Earnings per share from continuing operations	$	0.81		$	0.73		$	0.22		$	0.21
Discontinued operations, net of tax		(0.04	)		(0.04	)		(0.05	)		(0.05	)

Earnings per share	$	0.77		$	0.69		$	0.17		$	0.16

	Nine Months Ended September 30,

	2011						2010
	Basic			Diluted			Basic			Diluted
	(In thousands, except per share data)
Numerator:
Earnings from continuing operations	$	133,771		$	133,771		$	23,264		$	23,264
Net loss attributable to noncontrolling interests		54			54			1,239			1,239

Earnings from continuing operations attributable to IAC shareholders		133,825			133,825			24,503			24,503
Loss from discontinued operations, net of tax		(8,358	)		(8,358	)		(12,108	)		(12,108	)

Net earnings attributable to IAC shareholders	$	125,467		$	125,467		$	12,395		$	12,395

Denominator:
Weighted average basic shares outstanding		87,898			87,898			109,580			109,580
Dilutive securities including stock options, warrants and RSUs(a)(b)		—			6,992			—			3,288

Denominator for earnings per share—weighted average shares(a)(b)		87,898			94,890			109,580			112,868

Earnings per share attributable to IAC shareholders:
Earnings per share from continuing operations	$	1.52		$	1.41		$	0.22		$	0.22
Discontinued operations, net of tax		(0.09	)		(0.09	)		(0.11	)		(0.11	)

Earnings per share	$	1.43		$	1.32		$	0.11		$	0.11

(a): 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 warrants and vesting of restricted stock units ("RSUs"). For the three and nine months ended September 30, 2011, approximately 0.8 million and 1.3 million shares, respectively, related to potentially dilutive securities are excluded from the calculation of diluted earnings per share because their inclusion would have been anti-dilutive. For the three and nine months ended September 30, 2010, approximately 21.3 million and 21.7 million shares, respectively, related to potentially dilutive securities are excluded from the calculation of diluted earnings per share because their inclusion would have been anti-dilutive.
(b): There are no performance-based stock units ("PSUs") included in the denominator for earnings per share as the performance conditions have not been met for the respective reporting periods. For the three and nine months ended September 30, 2011, approximately 3.3 million PSUs are excluded from the calculation of diluted earnings per share. For the three and nine months ended September 30, 2010, approximately 1.8 million PSUs are excluded from the calculation of diluted earnings per share.

SEGMENT INFORMATION (Tables)

9 Months Ended

Sep. 30, 2011

SEGMENT INFORMATION

Schedule of reconciliation of revenues from segments to consolidated

		Three Months Ended September 30,						Nine Months Ended September 30,

		2011			2010			2011			2010
		(In thousands)
Revenue:
	Search	$	273,345		$	205,075		$	774,385		$	601,230
	Match		132,328			106,197			360,354			292,433
	ServiceMagic		55,061			48,397			157,458			140,128
	Media & Other		56,384			54,029			171,431			153,158
	Inter-segment elimination		(234	)		(732	)		(1,127	)		(1,561	)

	Total	$	516,884		$	412,966		$	1,462,501		$	1,185,388

Schedule of reconciliation of operating income (loss) from segments to consolidated

		Three Months Ended September 30,						Nine Months Ended September 30,

		2011			2010			2011			2010
		(In thousands)
Operating Income (Loss):
	Search	$	45,023		$	28,872		$	144,420		$	91,546
	Match		36,677			38,126			101,105			77,318
	ServiceMagic		7,041			6,205			19,088			14,349
	Media & Other		(3,717	)		(2,824	)		(10,680	)		(9,662	)
	Corporate		(38,284	)		(32,695	)		(111,626	)		(102,309	)

	Total	$	46,740		$	37,684		$	142,307		$	71,242

Schedule of reconciliation of Operating Income Before Amortization from segments to consolidated

		Three Months Ended September 30,						Nine Months Ended September 30,

		2011			2010			2011			2010
		(In thousands)
Operating Income Before Amortization:
	Search	$	45,848		$	29,268		$	145,802		$	92,852
	Match		40,207			39,354			107,530			83,264
	ServiceMagic		7,425			6,692			20,224			15,676
	Media & Other		(3,216	)		(2,161	)		(9,719	)		(7,175	)
	Corporate		(16,101	)		(16,109	)		(46,282	)		(43,492	)

	Total	$	74,163		$	57,044		$	217,555		$	141,125

Schedule of reconciliation of depreciation from segments to consolidated

		Three Months Ended September 30,				Nine Months Ended September 30,

		2011		2010		2011		2010
		(In thousands)
Depreciation:
	Search	$	11,170	$	8,249	$	24,518	$	27,264
	Match		2,481		2,612		7,059		8,518
	ServiceMagic		1,092		1,005		3,276		3,001
	Media & Other		662		576		2,089		1,682
	Corporate		2,079		2,156		6,431		6,551

	Total	$	17,484	$	14,598	$	43,373	$	47,016

Schedule of revenue and long-lived assets, excluding goodwill and intangible assets, by geographical information

		Three Months Ended September 30,				Nine Months Ended September 30,

		2011		2010		2011		2010
		(In thousands)
Revenue:
	United States	$	393,398	$	345,259	$	1,150,895	$	989,930
	All other countries		123,486		67,707		311,606		195,458

	Total	$	516,884	$	412,966	$	1,462,501	$	1,185,388

		September 30, 2011		December 31, 2010

		(In thousands)
Long-lived assets (excluding goodwill and intangible assets):
	United States	$	250,117	$	267,060
	All other countries		9,886		868

	Total	$	260,003	$	267,928

Schedule of reconciliation of Operating Income Before Amortization to operating income (loss) for the entity's reportable segments

	Three Months Ended September 30, 2011

	Operating Income Before Amortization			Non-Cash Compensation Expense			Amortization of Intangibles			Operating Income (Loss)
Search	$	45,848		$	—		$	(825	)	$	45,023
Match		40,207			(423	)		(3,107	)		36,677
ServiceMagic		7,425			—			(384	)		7,041
Media & Other		(3,216	)		(279	)		(222	)		(3,717	)
Corporate		(16,101	)		(22,183	)		—			(38,284	)

Total	$	74,163		$	(22,885	)	$	(4,538	)	$	46,740

	Three Months Ended September 30, 2010

	Operating Income Before Amortization			Non-Cash Compensation Expense			Amortization of Intangibles			Operating Income (Loss)
Search	$	29,268		$	(59	)	$	(337	)	$	28,872
Match		39,354			—			(1,228	)		38,126
ServiceMagic		6,692			—			(487	)		6,205
Media & Other		(2,161	)		(413	)		(250	)		(2,824	)
Corporate		(16,109	)		(16,586	)		—			(32,695	)

Total	$	57,044		$	(17,058	)	$	(2,302	)	$	37,684

	Nine Months Ended September 30, 2011

	Operating Income Before Amortization			Non-Cash Compensation Expense			Amortization of Intangibles			Operating Income (Loss)
Search	$	145,802		$	—		$	(1,382	)	$	144,420
Match		107,530			(423	)		(6,002	)		101,105
ServiceMagic		20,224			—			(1,136	)		19,088
Media & Other		(9,719	)		(286	)		(675	)		(10,680	)
Corporate		(46,282	)		(65,344	)		—			(111,626	)

Total	$	217,555		$	(66,053	)	$	(9,195	)	$	142,307

	Nine Months Ended September 30, 2010

	Operating Income Before Amortization			Non-Cash Compensation Expense			Amortization of Intangibles			Operating Income (Loss)
Search	$	92,852		$	(295	)	$	(1,011	)	$	91,546
Match		83,264			153			(6,099	)		77,318
ServiceMagic		15,676			—			(1,327	)		14,349
Media & Other		(7,175	)		(692	)		(1,795	)		(9,662	)
Corporate		(43,492	)		(58,817	)		—			(102,309	)

Total	$	141,125		$	(59,651	)	$	(10,232	)	$	71,242

SUBSEQUENT EVENTS (Tables)

9 Months Ended

Sep. 30, 2011

SUBSEQUENT EVENTS

Schedule of revenue and reconciliation of operating income (loss) to Operating Income Before Amortization

	Quarter Ended March 31, 2011		Quarter Ended June 30, 2011			Quarter Ended September 30, 2011

Revenue	$	9,239	$	6,982		$	5,277
Operating income (loss)		14		(770	)		(6,064	)
Amortization of intangibles		183		183			767
Operating Income Before Amortization		197		(587	)		(5,297	)

	Quarter Ended March 31, 2010			Quarter Ended June 30, 2010			Quarter Ended September 30, 2010		Quarter Ended December 31, 2010

Revenue	$	9,682		$	6,907		$	9,903	$	9,984
Operating (loss) income		(69	)		(758	)		348		(434	)
Amortization of intangibles		183			183			183		183
Non-cash compensation expense		147			88			59		39
Operating Income Before Amortization		261			(487	)		590		(212	)

RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS (Tables)

9 Months Ended

Sep. 30, 2011

RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS

Schedule of restatement of the consolidated balance sheet

Consolidated Balance Sheet as of September 30, 2011:

	As originally reported		Effect of restatement			As restated

	(In thousands)
Other non-current assets	$	250,627	$	(169,494	)	$	81,133
Total Assets		3,548,327		(169,494	)		3,378,833
Deferred income taxes		—		264,909			264,909
Other long-term liabilities		71,370		(53,538	)		17,832
Additional paid-in capital		11,588,762		(380,865	)		11,207,897
Total IAC shareholders' equity		2,306,498		(380,865	)		1,925,633
Total shareholders' equity		2,400,862		(380,865	)		2,019,997
Total Liabilities and Shareholders' Equity		3,548,327		(169,494	)		3,378,833

Consolidated Balance Sheet as of December 31, 2010:

	As originally reported		Effect of restatement			As restated

	(In thousands)
Other non-current assets	$	192,383	$	(110,475	)	$	81,908
Total Assets		3,439,554		(110,475	)		3,329,079
Deferred income taxes		—		270,501			270,501
Other long-term liabilities		20,350		(111	)		20,239
Additional paid-in capital		11,428,749		(380,865	)		11,047,884
Total IAC shareholders' equity		2,430,933		(380,865	)		2,050,068
Total shareholders' equity		2,430,933		(380,865	)		2,050,068
Total Liabilities and Shareholders' Equity		3,439,554		(110,475	)		3,329,079

- Definition

Tabular disclosure of prior period adjustments to previously issued financial statements including (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustments (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made.

+ References + Details

THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011 USD ($) country	Sep. 30, 2010 USD ($)	Sep. 30, 2011 USD ($) country entity business	Sep. 30, 2010 USD ($)	Dec. 31, 2010 USD ($)
THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Minimum number of Internet businesses owned by company \| business			50
Number of countries where company has consumer audiences \| country	30		30
Number of variable interest entities in which entity is primary beneficiary (in entities) \| entity			1
Revenue from major customers
Accounts receivable	$ 154,401		$ 154,401		$ 119,581
Google Inc.
Revenue from major customers
Revenue earned	242,900	$ 176,800	679,100	$ 522,600
Accounts receivable	$ 85,700		$ 85,700		$ 70,500

CONSOLIDATED FINANCIAL STATEMENT DETAILS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Property and equipment, net
Property and equipment, gross	$ 487,003		$ 487,003		$ 467,374
Less: accumulated depreciation and amortization	(227,000)		(227,000)		(199,446)
Property and equipment, net	260,003		260,003		267,928
Redeemable noncontrolling interests
Balance at the beginning of the period			59,869	$ 28,180	28,180
Purchase of noncontrolling interests			(5,779)
Noncontrolling interests related to the acquisition of a business contributed to a consolidated Latin American venture					20,250
Noncontrolling interests created by a decrease in the ownership of a subsidiary contributed to a consolidated Latin American venture					15,750
Decrease in redeemable noncontrolling interests in a consolidated Latin American venture, resulting from the acquisition of Meetic S.A. ("Meetic")			(37,917)
Noncontrolling interests related to other acquisitions					3,333
Net earnings (loss) attributable to noncontrolling interests			1,278		(5,007)
Change in fair value of redeemable noncontrolling interests			1,516		(2,059)
Other			128		(578)
Balance at the end of the period	19,095		19,095		59,869
Accumulated other comprehensive income
Foreign currency translation adjustment, net of tax	(7,574)		(7,574)		16,027
Unrealized gains on available-for-sale securities, net of tax	19,711		19,711		1,519
Accumulated other comprehensive income, net of tax	12,137		12,137		17,546
Other income, net
Interest income	1,224	$ 1,550	3,676	4,851
Interest expense	(1,425)	(1,321)	(4,135)	(3,967)
Gain on sales of investments	317		1,861	3,989
Non-income tax refunds related to Match Europe			4,630
Foreign currency exchange gains, net	3,748	371	4,050	292
Other	444	219	615	993
Other income, net	4,308	819	10,697	6,158
Comprehensive income (loss)
Net earnings	64,051	17,645	125,413	11,156
Change in foreign currency translation adjustment, net of tax	(39,675)	1,195	(29,813)	(12,468)
Change in net unrealized (losses) gains on available-for-sale securities, net of tax	(16,624)	3,636	18,192	(4,106)
Other comprehensive (loss) income	(56,299)	4,831	(11,621)	(16,574)
Unrealized gains, net of tax, reclassified out of accumulated other comprehensive income into other income, net	600	200	2,000	2,900
Comprehensive income (loss)	7,752	22,476	113,792	(5,418)
Net loss (earnings) attributable to noncontrolling interests	922	(136)	54	1,239
Change in foreign currency translation adjustment, net of tax, attributable to noncontrolling interests	6,212		6,212
Comprehensive loss (income) attributable to noncontrolling interests	7,134	(136)	6,266	1,239
Comprehensive income (loss) attributable to IAC shareholders	14,886	$ 22,340	120,058	$ (4,179)
Buildings and leasehold improvements
Property and equipment, net
Property and equipment, gross	235,524		235,524		234,328
Computer equipment and capitalized software
Property and equipment, net
Property and equipment, gross	198,415		198,415		183,055
Furniture and other equipment
Property and equipment, net
Property and equipment, gross	42,554		42,554		41,930
Projects in progress
Property and equipment, net
Property and equipment, gross	5,393		5,393		2,944
Land
Property and equipment, net
Property and equipment, gross	$ 5,117		$ 5,117		$ 5,117

CONSOLIDATED FINANCIAL STATEMENT DETAILS (Details 2) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Feb. 28, 2011	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Total Shareholders' Equity
Balance at the beginning of the period				$ 2,050,068
Net earnings (loss)				124,135
Change in foreign currency translation adjustment, net of tax				(29,813)
Change in net unrealized gains on available-for-sale securities, net of tax		$ (16,624)	$ 3,636	18,192	$ (4,106)
Purchase of treasury stock				(401,587)
Receipt of stock from Liberty Media Corporation	$ (2,923)			(2,923)
Issuance of common stock upon exercise of stock options, vesting of restricted stock units and other, net of withholding taxes				62,139
Income tax provision related to the exercise of stock options, vesting of restricted stock units and other				33,991
Non-cash compensation expense				65,824
Acquisition of Meetic		101,487		101,487
Change in fair value of redeemable noncontrolling interests				(1,516)
Balance at the end of the period		2,019,997		2,019,997
IAC Shareholders' Equity
Total Shareholders' Equity
Balance at the beginning of the period				2,050,068
Net earnings (loss)				125,467
Change in foreign currency translation adjustment, net of tax				(23,601)
Change in net unrealized gains on available-for-sale securities, net of tax				18,192
Purchase of treasury stock				(401,587)
Receipt of stock from Liberty Media Corporation				(2,923)
Issuance of common stock upon exercise of stock options, vesting of restricted stock units and other, net of withholding taxes				62,139
Income tax provision related to the exercise of stock options, vesting of restricted stock units and other				33,991
Non-cash compensation expense				65,403
Change in fair value of redeemable noncontrolling interests				(1,516)
Balance at the end of the period		1,925,633		1,925,633
Noncontrolling Interests
Total Shareholders' Equity
Net earnings (loss)				(1,332)
Change in foreign currency translation adjustment, net of tax				(6,212)
Non-cash compensation expense				421
Acquisition of Meetic		101,487		101,487
Balance at the end of the period		$ 94,364		$ 94,364

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
INCOME TAXES (Details) - USD ($) $ in Thousands	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010	Dec. 31, 2009
INCOME TAXES
Income tax benefit due to lower estimated annual effective tax rate	$ 2,000
(Benefits) provision for tax on income from continuing operations	(32,003)	$ 15,516	$ (6,444)	$ 26,974
Pre tax income	35,970	$ 37,956	127,327	$ 50,238
Deferred tax liability in connection with the acquisition	43,600		43,600
Match's equity method investment in Meetic (as a percent)						27.00%
Effective tax rate (as a percent)		41.00%		54.00%
Federal statutory rate (as a percent)		35.00%		35.00%
Total unrecognized tax benefits including interest	481,000		481,000		$ 487,600
Portion of unrecognized tax benefits included in non-current income taxes payable	467,900		467,900
Portion of unrecognized tax benefits related to deferred tax assets included in other non-current assets	12,300		12,300
Portion of unrecognized tax benefits included in accrued expenses and other current liabilities	800		800
Unrecognized tax benefits, tax positions for which the ultimate deductibility is highly certain but timing is uncertain	92,000		92,000
Unrecognized tax benefit, if recognized would reduce income tax provision for continuing operations	101,400		101,400
Unrecognized tax benefit, if recognized would reduce income tax provision for discontinued operations	212,600		212,600
Income tax provision for continuing operations upon the subsequent recognition of unrecognized tax benefits	4,500		4,500
Interest expense related to unrecognized tax benefits from continuing operations	2,200		2,800
Interest expense related to unrecognized tax benefits from discontinued operations	1,900		5,200
Deferred taxes related to interest on unrecognized tax benefits from continuing operations	1,400		1,800
Deferred taxes related to interest on unrecognized tax benefits from discontinued operations	1,200		3,300
Accrued interest on unrecognized tax benefits	111,000		111,000		97,700
Accrued penalties on unrecognized tax benefits	4,500		4,500		$ 5,000
Reasonably possible decrease in unrecognized tax benefits within next twelve months	53,400		53,400
Reasonably possible decrease in income tax provision within next twelve months	$ 8,100		$ 8,100

BUSINESS COMBINATIONS (Details) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2011 USD ($) year $ / shares shares	Sep. 30, 2011 USD ($) € / shares shares	Sep. 30, 2010 USD ($) $ / shares	Sep. 30, 2011 USD ($) $ / shares shares	Sep. 30, 2010 USD ($) $ / shares	Jan. 20, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009
Business Combination
Ownership interest acquired (as a percent)								27.00%
Revenue	$ 516,884		$ 412,966	$ 1,462,501	$ 1,185,388
Net earnings (loss)	64,973		17,509	125,467	12,395
Fair value at date of acquisition
Noncontrolling interests, including the fair value of unvested stock awards attributable to pre-acquisition services	101,487	$ 101,487		101,487
Allocation of the purchase price
Intangible assets with definite lives, net	37,980	37,980		37,980			$ 8,023
Customer lists
Allocation of the purchase price
Intangible assets with definite lives, net	15,737	15,737		15,737			236
Technology
Allocation of the purchase price
Intangible assets with definite lives, net	14,604	$ 14,604		14,604			$ 1,283
Match
Business Combination
Revenue	132,328		106,197	360,354	292,433
Meetic
Business Combination
Revenue	11,100			11,100
Write-off of deferred revenue	9,600			9,600
Net earnings (loss)	$ (5,900)			$ (5,900)
Allocation of the purchase price
Increase in ownership interest (as a percent)				54.00%
Meetic \| Match
Business Combination
Ownership interest acquired (as a percent)								27.00%
Shares acquired (in shares) \| shares	12.5	12.5		12.5
Voting interest (as a percent)	79.00%	79.00%		79.00%
Ownership interest (as a percent)	81.00%	81.00%		81.00%
Loss on adjustment to fair value of a previously held equity method investment	$ (11,700)
Currency translation adjustments reclassified out of accumulated other comprehensive income to earnings	$ 3,200
Percentage of interest of noncontrolling interests (as a percent)	19.00%	19.00%		19.00%
Tender offer price (in euro per share) \| € / shares		$ 15.00
Fair value at date of acquisition
Shares acquired pursuant to tender offer	$ 272,032	$ 272,032		$ 272,032
Equity method investment in Meetic	132,652	132,652		132,652
Noncontrolling interests, including the fair value of unvested stock awards attributable to pre-acquisition services	101,487	101,487		101,487
Total	506,171	506,171		506,171
Allocation of the purchase price
Cash and cash equivalents	74,562	74,562		74,562
Other current assets	22,356	22,356		22,356
Current deferred tax asset	13,742	13,742		13,742
Property and equipment	9,269	9,269		9,269
Goodwill	285,809	285,809		285,809
Intangible assets	165,250	165,250		165,250
Other assets	40,800	40,800		40,800
Total assets	611,788	611,788		611,788
Current liabilities	(49,382)	(49,382)		(49,382)
Other liabilities	(2,575)	(2,575)		(2,575)
Non-current deferred tax liabilities	(53,660)	(53,660)		(53,660)
Net assets	506,171	506,171		506,171
Pro forma financial information
Revenue	567,821		473,339	1,643,132	1,336,389
Net earnings (loss) attributable to IAC shareholders	$ 80,836		$ 23,569	$ 148,779	$ (5,701)
Basic earnings (loss) per share attributable to IAC shareholders (in dollars per share) \| $ / shares	$ 0.96		$ 0.23	$ 1.69	$ (0.05)
Diluted earnings (loss) per share attributable to IAC shareholders (in dollars per share) \| $ / shares	$ 0.86		$ 0.22	$ 1.57	$ (0.05)
Meetic \| Match \| Customer lists
Allocation of the purchase price
Intangible assets with definite lives, net	$ 18,138	18,138		$ 18,138
Weighted-Average Amortization Life (in years) \| year	1
Meetic \| Match \| Technology
Allocation of the purchase price
Intangible assets with definite lives, net	$ 14,917	14,917		14,917
Weighted-Average Amortization Life (in years) \| year	2
Meetic \| Match \| Indefinite-lived trade names
Allocation of the purchase price
Intangible assets with indefinite lives, net	$ 132,195	132,195		132,195
OkCupid \| Match
Business Combination
Cash paid for acquisition of shares						$ 50,000
Acquisition information
Purchase consideration paid in cash						50,000
Maximum additional contingent payment						$ 40,000
Payment to the former owner	30,000
Potential additional payment to the former owner	10,000	10,000		10,000
Fair value of contingent consideration arrangement	$ 10,000	$ 10,000		$ 10,000

GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011	Dec. 31, 2010
Balance of goodwill and intangible assets, net
Goodwill	$ 989,493	$ 1,337,889	$ 989,493
Intangible assets with indefinite lives		360,060	237,021
Intangible assets with definite lives, net		37,980	8,023
Total goodwill and intangible assets, net		1,735,929	1,234,537
Changes in the carrying value of goodwill
Balance at the beginning of the period	989,493
Additions	369,933
(Deductions)	(262)
Foreign Exchange Translation	(21,275)
Balance at the end of the period	1,337,889
IAC Search & Media
Balance of goodwill and intangible assets, net
Goodwill	533,911	533,911	534,004
Changes in the carrying value of goodwill
Balance at the beginning of the period	534,004
(Deductions)	(93)
Balance at the end of the period	533,911
Accumulated impairment loss		916,900	916,900
CityGrid Media
Balance of goodwill and intangible assets, net
Goodwill	17,450	17,751	17,450
Changes in the carrying value of goodwill
Balance at the beginning of the period	17,450
Additions	301
Balance at the end of the period	17,751
Search
Balance of goodwill and intangible assets, net
Goodwill	551,454	551,662	551,454
Changes in the carrying value of goodwill
Balance at the beginning of the period	551,454
Additions	301
(Deductions)	(93)
Balance at the end of the period	551,662
Match
Balance of goodwill and intangible assets, net
Goodwill	297,974	645,764	297,974
Changes in the carrying value of goodwill
Balance at the beginning of the period	297,974
Additions	369,596
Foreign Exchange Translation	(21,806)
Balance at the end of the period	645,764
ServiceMagic
Balance of goodwill and intangible assets, net
Goodwill	109,917	110,448	109,917
Changes in the carrying value of goodwill
Balance at the beginning of the period	109,917
Foreign Exchange Translation	531
Balance at the end of the period	110,448
Shoebuy
Balance of goodwill and intangible assets, net
Goodwill	21,712	21,748	21,712
Changes in the carrying value of goodwill
Balance at the beginning of the period	21,712
Additions	36
Balance at the end of the period	21,748
Accumulated impairment loss		28,000	28,000
Connected Ventures
Balance of goodwill and intangible assets, net
Goodwill	8,436	8,267	8,436
Changes in the carrying value of goodwill
Balance at the beginning of the period	8,436
(Deductions)	(169)
Balance at the end of the period	8,267
Accumulated impairment loss		11,600	11,600
Media and Other
Balance of goodwill and intangible assets, net
Goodwill	30,148	$ 30,015	$ 30,148
Changes in the carrying value of goodwill
Balance at the beginning of the period	30,148
Additions	36
(Deductions)	(169)
Balance at the end of the period	$ 30,015

GOODWILL AND INTANGIBLE ASSETS (Details2) $ in Thousands	9 Months Ended	12 Months Ended
GOODWILL AND INTANGIBLE ASSETS (Details2) $ in Thousands	Sep. 30, 2011 USD ($) year	Dec. 31, 2010 USD ($) year
Intangible assets with definite-lives
Cost	$ 54,701	$ 24,605
Accumulated Amortization	(16,721)	(16,582)
Net	37,980	8,023
Estimated amortization of intangible assets with definite lives
2012	26,794
2013	8,843
2014	1,085
2015	629
2016	629
Estimated amortization of intangible assets	37,980
Customer lists
Intangible assets with definite-lives
Cost	18,571	5,534
Accumulated Amortization	(2,834)	(5,298)
Net	$ 15,737	$ 236
Weighted-Average Amortization Life (in years) \| year	1.0	1.3
Technology
Intangible assets with definite-lives
Cost	$ 16,574	$ 3,100
Accumulated Amortization	(1,970)	(1,817)
Net	$ 14,604	$ 1,283
Weighted-Average Amortization Life (in years) \| year	2.2	3.0
Supplier agreements
Intangible assets with definite-lives
Cost	$ 10,053	$ 7,100
Accumulated Amortization	(5,471)	(4,668)
Net	$ 4,582	$ 2,432
Weighted-Average Amortization Life (in years) \| year	6.2	6.7
Other
Intangible assets with definite-lives
Cost	$ 9,503	$ 8,871
Accumulated Amortization	(6,446)	(4,799)
Net	$ 3,057	$ 4,072
Weighted-Average Amortization Life (in years) \| year	3.6	4.2

MARKETABLE SECURITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2011	Dec. 31, 2010
Available-for-sale marketable securities
Amortized Cost	$ 185,172	$ 560,661
Gross Unrealized Gains	719	3,582
Gross Unrealized Losses	(210)	(246)
Estimated Fair Value	185,681	563,997
Contractual maturities of debt securities classified as available-for-sale
Due in one year or less, Amortized Cost	98,145
Due after one year through five years, Amortized Cost	81,292
Total, Amortized Cost	179,437
Due in one year or less, Estimated Fair Value	98,410
Due after one year through five years, Estimated Fair Value	81,639
Total, Estimated Fair Value	180,049
Total debt securities
Available-for-sale marketable securities
Amortized Cost	179,437	547,765
Gross Unrealized Gains	719	1,164
Gross Unrealized Losses	(107)	(246)
Estimated Fair Value	180,049	548,683
Corporate debt securities
Available-for-sale marketable securities
Amortized Cost	67,833	237,406
Gross Unrealized Gains	116	773
Gross Unrealized Losses	(41)	(16)
Estimated Fair Value	67,908	238,163
States of the U.S. and state political subdivisions
Available-for-sale marketable securities
Amortized Cost	111,604	110,478
Gross Unrealized Gains	603	373
Gross Unrealized Losses	(66)	(230)
Estimated Fair Value	112,141	110,621
U.S. Treasury securities
Available-for-sale marketable securities
Amortized Cost		199,881
Gross Unrealized Gains		18
Estimated Fair Value		199,899
Marketable equity security
Available-for-sale marketable securities
Amortized Cost	5,735	12,896
Gross Unrealized Gains		2,418
Gross Unrealized Losses	(103)
Estimated Fair Value	$ 5,632	$ 15,314

MARKETABLE SECURITIES (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
MARKETABLE SECURITIES (Details 2) - USD ($) $ in Thousands	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Continuous unrealized loss position for less than twelve months
Fair Value	$ 43,219		$ 43,219		$ 73,723
Gross Unrealized Losses	(107)		(107)		(246)
Proceeds from maturities and sales of available-for-sale marketable securities and related gross realized gains and losses
Proceeds from maturities and sales of available-for-sale marketable securities	128,287	$ 240,584	542,191	$ 612,452
Gross realized gains	387	$ 328	2,303	4,660
Gross realized losses			(18)	$ (7)
Corporate debt securities
Continuous unrealized loss position for less than twelve months
Fair Value	16,995		16,995		34,552
Gross Unrealized Losses	(41)		(41)		(16)
States of the U.S. and state political subdivisions
Continuous unrealized loss position for less than twelve months
Fair Value	26,224		26,224		39,171
Gross Unrealized Losses	$ (66)		$ (66)		$ (230)

FAIR VALUE MEASUREMENTS (Details) $ in Thousands	3 Months Ended		9 Months Ended
FAIR VALUE MEASUREMENTS (Details) $ in Thousands	Mar. 31, 2011 USD ($) security	Mar. 31, 2010 USD ($)	Sep. 30, 2011 USD ($)	Dec. 31, 2010 USD ($)
Assets:
Marketable securities:			$ 185,681	$ 563,997
Auction rate security
Number of auction rate securities redeemed \| security	1
Gross unrealized losses			210	246
Long-term marketable equity securities
Long-term marketable equity securities on cost basis			48,900
Gross unrealized gains			34,500
Gross unrealized loss			4,700
Auction rate security
Auction rate security
Redeemed at par value	$ 5,000
Cost basis			10,000	15,000
Gross unrealized losses			4,100	1,900
Fair value on a recurring basis \| Quoted Market Prices in Active Markets for Identical Assets (Level 1)
Assets:
Total Assets			544,249	490,321
Fair value on a recurring basis \| Quoted Market Prices in Active Markets for Identical Assets (Level 1) \| Treasury and government agency money market funds
Assets:
Cash equivalents:			459,902	275,108
Fair value on a recurring basis \| Quoted Market Prices in Active Markets for Identical Assets (Level 1) \| U.S. Treasury securities
Assets:
Marketable securities:				199,899
Fair value on a recurring basis \| Quoted Market Prices in Active Markets for Identical Assets (Level 1) \| Marketable equity security
Assets:
Marketable securities:			5,632	15,314
Long-term investments:			78,715
Fair value on a recurring basis \| Significant Other Observable Inputs (Level 2)
Assets:
Total Assets			234,748	684,017
Fair value on a recurring basis \| Significant Other Observable Inputs (Level 2) \| Commercial paper
Assets:
Cash equivalents:			49,999	309,183
Fair value on a recurring basis \| Significant Other Observable Inputs (Level 2) \| Time deposits
Assets:
Cash equivalents:			4,700	26,050
Fair value on a recurring basis \| Significant Other Observable Inputs (Level 2) \| Corporate debt securities
Assets:
Marketable securities:			67,908	238,163
Fair value on a recurring basis \| Significant Other Observable Inputs (Level 2) \| States of the U.S. and state political subdivisions
Assets:
Marketable securities:			112,141	110,621
Fair value on a recurring basis \| Significant Unobservable Inputs (Level 3)
Assets:
Total Assets			5,860	13,100
Liabilities:
Contingent consideration arrangement			10,000
Total Liabilities			10,000
Fair value on a recurring basis \| Significant Unobservable Inputs (Level 3) \| Auction rate security
Assets:
Long-term investments:			5,860	13,100
Fair value on a recurring basis \| Total Fair Value Measurements
Assets:
Total Assets			784,857	1,187,438
Liabilities:
Contingent consideration arrangement			10,000
Total Liabilities			10,000
Fair value on a recurring basis \| Total Fair Value Measurements \| Treasury and government agency money market funds
Assets:
Cash equivalents:			459,902	275,108
Fair value on a recurring basis \| Total Fair Value Measurements \| Commercial paper
Assets:
Cash equivalents:			49,999	309,183
Fair value on a recurring basis \| Total Fair Value Measurements \| Time deposits
Assets:
Cash equivalents:			4,700	26,050
Fair value on a recurring basis \| Total Fair Value Measurements \| Corporate debt securities
Assets:
Marketable securities:			67,908	238,163
Fair value on a recurring basis \| Total Fair Value Measurements \| States of the U.S. and state political subdivisions
Assets:
Marketable securities:			112,141	110,621
Fair value on a recurring basis \| Total Fair Value Measurements \| U.S. Treasury securities
Assets:
Marketable securities:				199,899
Fair value on a recurring basis \| Total Fair Value Measurements \| Marketable equity security
Assets:
Marketable securities:			5,632	15,314
Long-term investments:			78,715
Fair value on a recurring basis \| Total Fair Value Measurements \| Auction rate security
Assets:
Long-term investments:			$ 5,860	$ 13,100
Fair value on a non-recurring basis
Assets measured at fair value on a non-recurring basis
Other-than-temporary impairment charge to write-down investment accounted for using the equity method to fair value		$ 18,300

FAIR VALUE MEASUREMENTS (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Auction rate security
Changes in assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Balance at the beginning of the period, assets	$ 8,680	$ 11,255	$ 13,100	$ 12,635
Total net (losses) gains (realized and unrealized) included in other comprehensive income, assets	(2,820)	1,095	(2,240)	(285)
Settlements, assets			(5,000)
Balance at the end of the period, assets	5,860	$ 12,350	5,860	$ 12,350
Contingent Consideration Arrangement
Changes in liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Balance at the beginning of the period, liabilities	10,000
Fair value at date of acquisition, liabilities			40,000
Settlements, liabilities			(30,000)
Balance at the end of the period, liabilities	$ 10,000		$ 10,000

FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Thousands	Sep. 30, 2011	Dec. 31, 2010
Assets:
Marketable securities	$ 185,681	$ 563,997
Long-term investments
Cost method investments, carrying value	81,200	39,000
Carrying Value
Assets:
Cash and cash equivalents	679,311	742,099
Marketable securities	185,681	563,997
Notes receivable	3,332	3,316
Liabilities:
Contingent consideration arrangement	(10,000)
Long-term debt	(95,844)	(95,844)
Guarantee of an equity method investee's debt	(5,000)
Carrying Value \| Marketable equity security
Assets:
Long-term investments	78,715
Carrying Value \| Auction rate security
Assets:
Long-term investments	5,860	13,100
Total Fair Value Measurements
Assets:
Cash and cash equivalents	679,311	742,099
Marketable securities	185,681	563,997
Notes receivable	2,939	2,818
Liabilities:
Contingent consideration arrangement	(10,000)
Long-term debt	(87,502)	(83,363)
Guarantee of an equity method investee's debt	(5,000)
Letters of credit and surety bond	(224)	(362)
Total Fair Value Measurements \| Marketable equity security
Assets:
Long-term investments	78,715
Total Fair Value Measurements \| Auction rate security
Assets:
Long-term investments	$ 5,860	$ 13,100

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Numerator: Basic
Earnings from continuing operations	$ 67,973	$ 22,440	$ 133,771	$ 23,264
Net loss (earnings) attributable to noncontrolling interests	922	(136)	54	1,239
Earnings from continuing operations attributable to IAC shareholders	68,895	22,304	133,825	24,503
Loss from discontinued operations, net of tax	(3,922)	(4,795)	(8,358)	(12,108)
Net earnings attributable to IAC shareholders	64,973	17,509	125,467	12,395
Numerator: Diluted
Earnings from continuing operations	67,973	22,440	133,771	23,264
Net loss (earnings) attributable to noncontrolling interests	922	(136)	54	1,239
Earnings from continuing operations attributable to IAC shareholders	68,895	22,304	133,825	24,503
Loss from discontinued operations, net of tax	(3,922)	(4,795)	(8,358)	(12,108)
Net earnings attributable to IAC shareholders	$ 64,973	$ 17,509	$ 125,467	$ 12,395
Denominator: Basic
Weighted average basic shares outstanding (in shares)	84,613	103,152	87,898	109,580
Denominator: Diluted
Weighted average basic shares outstanding (in shares)	84,613	103,152	87,898	109,580
Dilutive securities including stock options, warrants and RSUs (in shares)	9,129	3,076	6,992	3,288
Denominator for earnings per share-weighted average shares (in shares)	93,742	106,228	94,890	112,868
Earnings per share attributable to IAC shareholders: Basic
Earnings per share from continuing operations (in dollars per share)	$ 0.81	$ 0.22	$ 1.52	$ 0.22
Discontinued operations, net of tax (in dollars per share)	(0.04)	(0.05)	(0.09)	(0.11)
Earnings per share (in dollars per share)	0.77	0.17	1.43	0.11
Earnings per share attributable to IAC shareholders: Diluted
Earnings per share from continuing operations (in dollars per share)	0.73	0.21	1.41	0.22
Discontinued operations, net of tax (in dollars per share)	(0.04)	(0.05)	(0.09)	(0.11)
Earnings per share (in dollars per share)	$ 0.69	$ 0.16	$ 1.32	$ 0.11

EARNINGS PER SHARE (Details 2) - shares shares in Millions	3 Months Ended		9 Months Ended
EARNINGS PER SHARE (Details 2) - shares shares in Millions	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
RSUs
Anti-dilutive weighted average common shares
Potentially dilutive securities excluded from calculation of diluted earnings per share (in shares)	0.8	21.3	1.3	21.7
PSUs
Anti-dilutive weighted average common shares
Potentially dilutive securities excluded from calculation of diluted earnings per share (in shares)	3.3	1.8	3.3	1.8

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Segment reporting information
Revenue	$ 516,884	$ 412,966	$ 1,462,501	$ 1,185,388
Operating Income (Loss)	46,740	37,684	142,307	71,242
Operating Income Before Amortization	74,163	57,044	217,555	141,125
Depreciation	17,484	14,598	43,373	47,016
Reconciliation of Operating Income Before Amortization to operating income (loss) for the entity's reportable segments
Operating Income Before Amortization	74,163	57,044	217,555	141,125
Non-Cash Compensation Expense	(22,885)	(17,058)	(66,053)	(59,651)
Amortization of Intangibles	(4,538)	(2,302)	(9,195)	(10,232)
Operating Income (Loss)	46,740	37,684	142,307	71,242
Search
Segment reporting information
Revenue	273,345	205,075	774,385	601,230
Operating Income (Loss)	45,023	28,872	144,420	91,546
Operating Income Before Amortization	45,848	29,268	145,802	92,852
Depreciation	11,170	8,249	24,518	27,264
Reconciliation of Operating Income Before Amortization to operating income (loss) for the entity's reportable segments
Operating Income Before Amortization	45,848	29,268	145,802	92,852
Non-Cash Compensation Expense		(59)		(295)
Amortization of Intangibles	(825)	(337)	(1,382)	(1,011)
Operating Income (Loss)	45,023	28,872	144,420	91,546
Match
Segment reporting information
Revenue	132,328	106,197	360,354	292,433
Operating Income (Loss)	36,677	38,126	101,105	77,318
Operating Income Before Amortization	40,207	39,354	107,530	83,264
Depreciation	2,481	2,612	7,059	8,518
Reconciliation of Operating Income Before Amortization to operating income (loss) for the entity's reportable segments
Operating Income Before Amortization	40,207	39,354	107,530	83,264
Non-Cash Compensation Expense	(423)		(423)	153
Amortization of Intangibles	(3,107)	(1,228)	(6,002)	(6,099)
Operating Income (Loss)	36,677	38,126	101,105	77,318
ServiceMagic
Segment reporting information
Revenue	55,061	48,397	157,458	140,128
Operating Income (Loss)	7,041	6,205	19,088	14,349
Operating Income Before Amortization	7,425	6,692	20,224	15,676
Depreciation	1,092	1,005	3,276	3,001
Reconciliation of Operating Income Before Amortization to operating income (loss) for the entity's reportable segments
Operating Income Before Amortization	7,425	6,692	20,224	15,676
Amortization of Intangibles	(384)	(487)	(1,136)	(1,327)
Operating Income (Loss)	7,041	6,205	19,088	14,349
Media and Other
Segment reporting information
Revenue	56,384	54,029	171,431	153,158
Operating Income (Loss)	(3,717)	(2,824)	(10,680)	(9,662)
Operating Income Before Amortization	(3,216)	(2,161)	(9,719)	(7,175)
Depreciation	662	576	2,089	1,682
Reconciliation of Operating Income Before Amortization to operating income (loss) for the entity's reportable segments
Operating Income Before Amortization	(3,216)	(2,161)	(9,719)	(7,175)
Non-Cash Compensation Expense	(279)	(413)	(286)	(692)
Amortization of Intangibles	(222)	(250)	(675)	(1,795)
Operating Income (Loss)	(3,717)	(2,824)	(10,680)	(9,662)
Inter-segment elimination
Segment reporting information
Revenue	(234)	(732)	(1,127)	(1,561)
Corporate
Segment reporting information
Operating Income (Loss)	(38,284)	(32,695)	(111,626)	(102,309)
Operating Income Before Amortization	(16,101)	(16,109)	(46,282)	(43,492)
Depreciation	2,079	2,156	6,431	6,551
Reconciliation of Operating Income Before Amortization to operating income (loss) for the entity's reportable segments
Operating Income Before Amortization	(16,101)	(16,109)	(46,282)	(43,492)
Non-Cash Compensation Expense	(22,183)	(16,586)	(65,344)	(58,817)
Operating Income (Loss)	$ (38,284)	$ (32,695)	$ (111,626)	$ (102,309)

SEGMENT INFORMATION (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
SEGMENT INFORMATION (Details 2) - USD ($) $ in Thousands	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Revenue and long-lived assets by geographical information
Revenue	$ 516,884	$ 412,966	$ 1,462,501	$ 1,185,388
Long-lived assets (excluding goodwill and intangible assets)	260,003		260,003		$ 267,928
United States
Revenue and long-lived assets by geographical information
Revenue	393,398	345,259	1,150,895	989,930
Long-lived assets (excluding goodwill and intangible assets)	250,117		250,117		267,060
All other countries
Revenue and long-lived assets by geographical information
Revenue	123,486	$ 67,707	311,606	$ 195,458
Long-lived assets (excluding goodwill and intangible assets)	$ 9,886		$ 9,886		$ 868

CONTINGENCIES (Details)	9 Months Ended
CONTINGENCIES (Details)	Sep. 30, 2011 lawsuit
CONTINGENCIES
Minimum number of lawsuits that could have material impact on the liquidity, results of operations, or financial condition	1

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2010	Dec. 31, 2010
Equity method investments
Dividend received	$ 11,355
Meetic
Equity method investments
Dividend received		$ 11,400

SUPPLEMENTAL CASH FLOW INFORMATION (Details 2) - USD ($) $ in Thousands, shares in Millions	1 Months Ended		9 Months Ended
	Feb. 28, 2011	Mar. 31, 2010	Sep. 30, 2011	Mar. 10, 2010
Non-Cash Transactions
Shares of IAC common stock received in tax-free exchange with Liberty Media Corporation (in shares)	0.1
Value of the shares of IAC common stock received in tax-free exchange with Liberty Media Corporation	$ 2,923		$ 2,923
Cash payment from Match to Meetic		$ 3,000
Equity interest of Match and Meetic in the newly formed venture (as a percent)				50.00%
Value of equity interest in the newly formed venture				$ 72,000

SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended							9 Months Ended
	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Sep. 30, 2011	Sep. 30, 2010	Nov. 02, 2011	Mar. 11, 2011	Dec. 31, 2009
SUBSEQUENT EVENTS
Current assets	$ 1,124,141			$ 1,543,985				$ 1,124,141
Total current liabilities	493,278			356,873				493,278
Noncontrolling interest	19,095			59,869				19,095				$ 28,180
Revenue and reconciliation of operating income (loss) to Operating Income Before Amortization
Revenue	516,884				$ 412,966			1,462,501	$ 1,185,388
Operating (loss) income	46,740				37,684			142,307	71,242
Amortization of intangibles	4,538				2,302			9,195	10,232
Non-cash compensation expense	22,885				17,058			66,053	59,651
Operating Income Before Amortization	74,163				57,044			217,555	$ 141,125
Common stock dividend payable										$ 10,000
Sendori
SUBSEQUENT EVENTS
Current assets	4,000							4,000
Total current liabilities	1,800							1,800
Noncontrolling interest	2,400							$ 2,400
Revenue and reconciliation of operating income (loss) to Operating Income Before Amortization
Revenue	5,277	$ 6,982	$ 9,239	9,984	9,903	$ 6,907	$ 9,682
Operating (loss) income	(6,064)	(770)	14	(434)	348	(758)	(69)
Amortization of intangibles	767	183	183	183	183	183	183
Non-cash compensation expense				39	59	88	147
Operating Income Before Amortization	(5,297)	$ (587)	$ 197	$ (212)	$ 590	$ (487)	$ 261
Write-down of capitalized software costs	4,900
Intangible asset impairment charge	$ 600
Quarterly cash dividend declared \| Common stock
SUBSEQUENT EVENTS
Quarterly cash dividend (per share)										$ 0.12
Quarterly cash dividend declared \| Class B convertible common stock
SUBSEQUENT EVENTS
Quarterly cash dividend (per share)										$ 0.12
Agreement to sell \| Sendori
SUBSEQUENT EVENTS
Total consideration of agreement to sell Sendori											$ 3,000
Amount contingent upon collection of outstanding accounts receivable											$ 2,300

RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS (Details) - USD ($) $ in Thousands	Sep. 30, 2011	Dec. 31, 2010
RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS
Deferred income tax liability relating to a gain recorded in 2002	$ 380,865	$ 380,865
Consolidated Balance Sheet
Other non-current assets	81,133	81,908
Total Assets	3,378,833	3,329,079
Deferred income taxes	264,909	270,501
Other long-term liabilities	17,832	20,239
Additional paid-in capital	11,207,897	11,047,884
Total IAC shareholders' equity	1,925,633	2,050,068
Total shareholders' equity	2,019,997	2,050,068
Total Liabilities and Shareholders' Equity	3,378,833	3,329,079
As originally reported
Consolidated Balance Sheet
Other non-current assets	250,627	192,383
Total Assets	3,548,327	3,439,554
Other long-term liabilities	71,370	20,350
Additional paid-in capital	11,588,762	11,428,749
Total IAC shareholders' equity	2,306,498	2,430,933
Total shareholders' equity	2,400,862	2,430,933
Total Liabilities and Shareholders' Equity	3,548,327	3,439,554
Revision of calculation of deferred income tax liability \| Effect of restatement
Consolidated Balance Sheet
Other non-current assets	(169,494)	(110,475)
Total Assets	(169,494)	(110,475)
Deferred income taxes	264,909	270,501
Other long-term liabilities	(53,538)	(111)
Additional paid-in capital	(380,865)	(380,865)
Total IAC shareholders' equity	(380,865)	(380,865)
Total shareholders' equity	(380,865)	(380,865)
Total Liabilities and Shareholders' Equity	$ (169,494)	$ (110,475)