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INCOME TAXES (Details) (USD $)
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12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| U.S. and foreign earnings (loss) from continuing operations before income taxes | |||
| U.S. | $ 174,792,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic | $ 331,520,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic | $ 214,675,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic |
| Foreign | 95,137,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign | 84,781,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign | 74,387,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign |
| Earnings from continuing operations before income taxes | 269,929,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 416,301,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 289,062,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |
| Current income tax (benefit) provision : | |||
| Federal | (45,842,000)us-gaap_CurrentFederalTaxExpenseBenefit | 115,250,000us-gaap_CurrentFederalTaxExpenseBenefit | 56,439,000us-gaap_CurrentFederalTaxExpenseBenefit |
| State | (14,787,000)us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 13,946,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 9,204,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit |
| Foreign | 19,132,000us-gaap_CurrentForeignTaxExpenseBenefit | 14,402,000us-gaap_CurrentForeignTaxExpenseBenefit | 16,496,000us-gaap_CurrentForeignTaxExpenseBenefit |
| Current income tax (benefit) provision | (41,497,000)us-gaap_CurrentIncomeTaxExpenseBenefit | 143,598,000us-gaap_CurrentIncomeTaxExpenseBenefit | 82,139,000us-gaap_CurrentIncomeTaxExpenseBenefit |
| Deferred income tax provision (benefit): | |||
| Federal | 74,255,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit | (821,000)us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 40,414,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit |
| State | 3,090,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | (2,117,000)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 1,978,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit |
| Foreign | (476,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit | (6,158,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit | (5,316,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit |
| Deferred income tax provision (benefit) | 76,869,000us-gaap_DeferredIncomeTaxExpenseBenefit | (9,096,000)us-gaap_DeferredIncomeTaxExpenseBenefit | 37,076,000us-gaap_DeferredIncomeTaxExpenseBenefit |
| Income tax provision | 35,372,000us-gaap_IncomeTaxExpenseBenefit | 134,502,000us-gaap_IncomeTaxExpenseBenefit | 119,215,000us-gaap_IncomeTaxExpenseBenefit |
| Excess tax deductions attributable to stock-based compensation | 45,000,000iaci_IncomeTaxExpenseBenefitAttributableToStockBasedCompensation | 32,900,000iaci_IncomeTaxExpenseBenefitAttributableToStockBasedCompensation | 57,100,000iaci_IncomeTaxExpenseBenefitAttributableToStockBasedCompensation |
| Deferred tax assets: | |||
| Accrued expenses | 34,654,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities | 28,005,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities | |
| Net operating loss carryforwards | 55,579,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | 52,336,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | |
| Tax credit carryforwards | 13,585,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwards | 6,138,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwards | |
| Stock-based compensation | 69,342,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost | 69,101,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost | |
| Income tax reserves, including related interest | 2,247,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves | 62,852,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves | |
| Cost method investments | 27,581,000us-gaap_DeferredTaxAssetsInvestments | 2,383,000us-gaap_DeferredTaxAssetsInvestments | |
| Equity method investments | 14,998,000us-gaap_DeferredTaxAssetsEquityMethodInvestments | 13,584,000us-gaap_DeferredTaxAssetsEquityMethodInvestments | |
| Other | 10,075,000us-gaap_DeferredTaxAssetsOther | 10,212,000us-gaap_DeferredTaxAssetsOther | |
| Total deferred tax assets | 228,061,000us-gaap_DeferredTaxAssetsGross | 244,611,000us-gaap_DeferredTaxAssetsGross | |
| Less valuation allowance | (98,350,000)us-gaap_DeferredTaxAssetsValuationAllowance | (62,353,000)us-gaap_DeferredTaxAssetsValuationAllowance | |
| Net deferred tax assets | 129,711,000us-gaap_DeferredTaxAssetsNet | 182,258,000us-gaap_DeferredTaxAssetsNet | |
| Deferred tax liabilities: | |||
| Investment in subsidiaries | (378,769,000)iaci_DeferredTaxLiabilitiesInvestmentInSubsidiaries | (377,483,000)iaci_DeferredTaxLiabilitiesInvestmentInSubsidiaries | |
| Intangible and other assets | (115,470,000)iaci_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssetsAndOther | (69,530,000)iaci_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssetsAndOther | |
| Other | (25,883,000)us-gaap_DeferredTaxLiabilitiesOther | (21,841,000)us-gaap_DeferredTaxLiabilitiesOther | |
| Total deferred tax liabilities | (520,122,000)us-gaap_DeferredTaxLiabilities | (468,854,000)us-gaap_DeferredTaxLiabilities | |
| Net deferred tax liabilities | $ (390,411,000)us-gaap_DeferredTaxAssetsLiabilitiesNet | $ (286,596,000)us-gaap_DeferredTaxAssetsLiabilitiesNet | |
| X | ||||||||||
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- Definition
The cumulative amount of the estimated future tax effects attributable to the difference between the tax basis of intangible assets and other assets and the basis of intangible assets and other assets computed in accordance with generally accepted accounting principles. No definition available.
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- Definition
The amount as of the balance sheet date of the estimated future tax effects attributable to investments in subsidiaries. No definition available.
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- Definition
The income tax expense or benefit attributable to stock-based compensation. No definition available.
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- Details
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- Details
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- Definition
Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from equity method investments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from investments (excludes investments in subsidiaries and equity method investments). No definition available.
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| X | ||||||||||
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from other reserves not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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