v2.4.1.9

SUPPLEMENTAL CASH FLOW INFORMATION (Details) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Supplemental Cash Flow Information [Abstract] |  |  |
Fair Value Of Contingent Consideration At Date Of Acquisition | $ 8,800,000 iaci_FairValueOfContingentConsiderationAtDateOfAcquisition | $ 41,400,000 iaci_FairValueOfContingentConsiderationAtDateOfAcquisition |
Cash paid (received) during the year for: |  |  |
Interest | 54,027,000 us-gaap_InterestPaidNet | 28,705,000 us-gaap_InterestPaidNet | 5,214,000 us-gaap_InterestPaidNet
Income tax payments | 63,521,000 us-gaap_IncomeTaxesPaid | 112,087,000 us-gaap_IncomeTaxesPaid | 43,316,000 us-gaap_IncomeTaxesPaid
Income tax refunds | $ (10,477,000)us-gaap_ProceedsFromIncomeTaxRefunds | $ (17,683,000)us-gaap_ProceedsFromIncomeTaxRefunds | $ (8,187,000)us-gaap_ProceedsFromIncomeTaxRefunds

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- Definition Fair Value Of Contingent Consideration At Date Of Acquisition + References No definition available. + Details
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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- Definition The amount of cash paid for interest during the period net of cash paid for interest that is capitalized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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- Definition The amount of cash received during the period as refunds for the overpayment of taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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