v2.4.1.9

INCOME TAXES (Details 2) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014
Net operating loss carryforwards and tax credits |
Tax benefits related to NOLs | $ 0.8 iaci_IncomeTaxExpenseBenefitRelatedToOperatingLossCarryforwards
Tax credit carryforwards | 19.0 us-gaap_TaxCreditCarryforwardAmount
Tax credit carryforwards that can be carried forward indefinitely | 10.0 iaci_TaxCreditCarryforwardsNotSubjectToExpiration
Tax credit carryforwards expiring within ten years | 9.0 iaci_TaxCreditCarryforwardAmountExpiringWithinTenYears
Federal |
Net operating loss carryforwards and tax credits |
Loss carryforwards | 61.5 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember
State |
Net operating loss carryforwards and tax credits |
Loss carryforwards | 82.6 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember
Capital loss carryforwards | 5.1 iaci_CapitalLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember
Tax credit carryforwards | 5.6 us-gaap_TaxCreditCarryforwardAmount / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember
State | Research |
Net operating loss carryforwards and tax credits |
Tax credit carryforwards | 8.2 us-gaap_TaxCreditCarryforwardAmount / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_ResearchMember
Foreign |
Net operating loss carryforwards and tax credits |
Loss carryforwards | 107.5 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_ForeignCountryMember
Net operating losses carryforwards that can be carried forward indefinitely | 98.1 iaci_OperatingLossCarryforwardsNotSubjectToExpiration / us-gaap_IncomeTaxAuthorityAxis = us-gaap_ForeignCountryMember
Net operating losses carryforwards expiring within twenty years | 9.3 iaci_OperatingLossCarryforwardsSubjectToExpirationWithinTwentyYears / us-gaap_IncomeTaxAuthorityAxis = us-gaap_ForeignCountryMember
Tax credit carryforwards | $ 5.2 us-gaap_TaxCreditCarryforwardAmount / us-gaap_IncomeTaxAuthorityAxis = us-gaap_ForeignCountryMember

X
- Definition Represents the sum of domestic, foreign and state and local capital loss carryforwards. + References No definition available. + Details
Name: | iaci_CapitalLossCarryforwards
Namespace Prefix: | iaci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | iaci_IncomeTaxCarryforwardsLineItems
Namespace Prefix: | iaci_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of income tax expense or benefit related to operating loss carryforwards. + References No definition available. + Details
Name: | iaci_IncomeTaxExpenseBenefitRelatedToOperatingLossCarryforwards
Namespace Prefix: | iaci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of the operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws that can be carried forward indefinitely. + References No definition available. + Details
Name: | iaci_OperatingLossCarryforwardsNotSubjectToExpiration
Namespace Prefix: | iaci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of the operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws which will expire within twenty years. + References No definition available. + Details
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Namespace Prefix: | iaci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws that will expire within ten years. + References No definition available. + Details
Name: | iaci_TaxCreditCarryforwardAmountExpiringWithinTenYears
Namespace Prefix: | iaci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws that can be carried forward indefinitely. + References No definition available. + Details
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Namespace Prefix: | iaci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | debit
Period Type: | instant

X
- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Carryforwards -URI http://asc.fasb.org/extlink&oid=6506874 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
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- Details
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Namespace Prefix: |
Data Type: | na
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Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_ForeignCountryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |