v2.4.0.8

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2013
Accounting Policies [Abstract] |
Schedule of estimated useful lives of property and equipment |
Asset Category | Estimated Useful Lives
Buildings and leasehold improvements | 3 to 39 Years
Computer equipment and capitalized software | 2 to 3 Years
Furniture and other equipment | 3 to 10 Years

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- Definition Tabular disclosure of estimated useful lives of property, plant and equipment. + References No definition available. + Details
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Namespace Prefix: | iaci_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration