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SEGMENT INFORMATION - Financial Data by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Segment Reporting Information [Line Items] |  |
Revenue | $ 1,228,765 | $ 1,105,843
Operating income (loss) | (177,780) | 79,873
Operating segments | Match Group |  |
Segment Reporting Information [Line Items] |  |
Revenue | 544,642 | 464,625
Operating income (loss) | 134,681 | 118,828
Adjusted EBITDA | 171,502 | 155,067
Operating segments | ANGI Homeservices |  |
Segment Reporting Information [Line Items] |  |
Revenue | 343,650 | 303,443
Operating income (loss) | (16,296) | (3,641)
Adjusted EBITDA | 34,397 | 37,179
Operating segments | Vimeo |  |
Segment Reporting Information [Line Items] |  |
Revenue | 56,968 | 43,581
Operating income (loss) | (14,589) | (17,784)
Adjusted EBITDA | (11,408) | (16,200)
Operating segments | Dotdash |  |
Segment Reporting Information [Line Items] |  |
Revenue | 44,120 | 33,961
Operating income (loss) | 2,411 | 3,047
Adjusted EBITDA | 7,011 | 7,150
Operating segments | Applications |  |
Segment Reporting Information [Line Items] |  |
Revenue | 104,148 | 143,549
Operating income (loss) | (218,588) | 25,356
Adjusted EBITDA | 10,151 | 29,688
Operating segments | Emerging & Other |  |
Segment Reporting Information [Line Items] |  |
Revenue | 135,305 | 116,748
Operating income (loss) | (19,845) | (2,520)
Adjusted EBITDA | (16,980) | (2,095)
Inter-segment eliminations |  |
Segment Reporting Information [Line Items] |  |
Revenue | (68) | (64)
Corporate |  |
Segment Reporting Information [Line Items] |  |
Operating income (loss) | (45,554) | (43,413)
Adjusted EBITDA | $ (31,398) | $ (20,220)

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- Definition The Company's primary financial measure is Adjusted EBITDA, which is defined as operating income excluding: (1) stock-based compensation expense; (2) depreciation; and (3) acquisition-related items consisting of (i) amortization of intangible assets and impairments of goodwill and intangible assets, if applicable, and (ii) gains and losses recognized on changes in the fair value of contingent consideration arrangements. The Company believes this measure is useful for analysts and investors as this measure allows a more meaningful comparison between our performance and that of our competitors. Moreover, our management uses this measure internally to evaluate the performance of our business as a whole and our individual business segments, and this measure is one of the primary metrics by which our internal budgets are based and by which management is compensated. The above items are excluded from our Adjusted EBITDA measure because these items are non-cash in nature, and we believe that by excluding these items, Adjusted EBITDA corresponds more closely to the cash operating income generated from our business, from which capital investments are made and debt is serviced. Adjusted EBITDA has certain limitations in that it does not take into account the impact to IAC's statement of operations of certain expenses. + References No definition available. + Details
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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