RELATED PARTY TRANSACTIONS (Details) - Other Affiliates [Member] $ in Millions	12 Months Ended
Dec. 31, 2015 aircraft	Dec. 31, 2013 USD ($)	Dec. 31, 2014
Related Party Transaction [Line Items]
Ownership interest held by each of the Company and Expedia in aircraft (as a percent)	50.00%
Number of Aircraft Operated \| aircraft	2
IAC's total purchase price and refurbish costs in another aircraft \| $		$ 25
Ownership interest held by each of the Company and Expedia in an entity employing aircraft flight crew (as a percent)			50.00%

Represents the percentage of the total purchase price of an aircraft paid by both the Company and a related party.

No definition available.

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- Definition

Represents the ownership interest in aircraft and entity employing aircraft flight crew that is held by both the reporting entity and a related party.

+ References

No definition available.

+ Details

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Namespace Prefix:	iac_
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- Definition

Number of aircraft operated by the carrier.

+ References

No definition available.

+ Details

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- Definition

The cash outflow for acquisition of or capital improvements of property, plant and equipment, used to produce goods or deliver services, and not otherwise defined in the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

+ Details

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Balance Type:	credit
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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