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Write-off of Notes Receivables

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No definition available.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as noncurrent.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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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.

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No definition available.

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Amount of cumulative impairment loss on investment in equity security without readily determinable fair value.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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No definition available.

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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.

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THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Revenue and Other [Line Items]
Goodwill impairment	$ 211,973	$ 0	$ 3,318
Impairment of equity securities without readily determinable fair value	(51,500)
Write-off of notes receivable	(7,500)
Consolidated revenue	1,228,765	1,105,843
Current deferred revenue	433,728		397,490
Non-current deferred revenue	1,300		1,300
Deferred revenue recognized during period	258,200	234,800
Capitalized sales commissions where customer relationship period is greater than one year	47,500		42,400
Accounts receivable related to revenue earned	375,854		298,334
Applications
Revenue and Other [Line Items]
Goodwill impairment	211,973		0
Emerging & Other
Revenue and Other [Line Items]
Goodwill impairment			3,318
Google Inc. \| Revenue \| Customer concentration risk
Revenue and Other [Line Items]
Consolidated revenue	$ 138,900	$ 195,800
Concentration risk (as a percent)	11.00%	18.00%
Google Inc. \| Revenue \| Customer concentration risk \| Applications
Revenue and Other [Line Items]
Consolidated revenue	$ 46,100	$ 88,100
Google Inc. \| Revenue \| Customer concentration risk \| Emerging & Other
Revenue and Other [Line Items]
Consolidated revenue	80,500	$ 94,800
Google Inc. \| Accounts Receivable \| Customer concentration risk
Revenue and Other [Line Items]
Accounts receivable related to revenue earned	$ 48,700		53,000
Match Group
Revenue and Other [Line Items]
Economic interest (as a percent)	80.40%
Voting interest (as a percent)	97.40%
ANGI Homeservices
Revenue and Other [Line Items]
Economic interest (as a percent)	84.90%
Voting interest (as a percent)	98.30%
Desktop \| Applications
Revenue and Other [Line Items]
Goodwill impairment	$ 211,973		$ 0
Impairment of indefinite-lived intangible assets	21,400
Revenue Change \| Handy
Revenue and Other [Line Items]
Consolidated revenue	$ 15,200