Number Of Related Party Debt Instruments

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

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

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Percentage of Total Purchase Price and Refurbish Costs Paid In Related Party Transaction

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Related Party Transaction, Expected Costs from Transactions with Related Party

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Stock Received During Period, Shares, Related Party

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Stock Received During Period, Shares, Related Party Employee Matters Agreement

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Stock Received During Period Shares Related Party Employee Matters Agreement, Reimbursement For Settlement Of Equity Award Denominated in Shares Of Parent

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Stock Received During Period Shares Related Party Employee Matters Agreement, Reimbursement For Settlement Of Equity Award Denominated in Shares Of Subsidiary

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- Definition

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

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Carrying amount as of the balance sheet date of obligations due all related parties.

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Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due within 1 year (or 1 business cycle).

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Number of aircraft operated by the carrier.

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Amount of cash outflow from the acquisition of or improvements to long-lived, physical assets used to produce goods and services and not intended for resale, classified as other.

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Direct costs arising from transactions with related parties who are not affiliates or joint Ventures. These costs are categorized as cost of goods sold.

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The amount of any current tax-related balances due from affiliates as of the date of each statement of financial position presented.

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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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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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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RELATED PARTY TRANSACTIONS - Narrative (Details) shares in Millions		1 Months Ended	3 Months Ended	12 Months Ended
	Oct. 10, 2018 shares	Dec. 31, 2017 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($) aircraft shares	Dec. 31, 2018 USD ($) shares	Dec. 31, 2017 USD ($) shares	Sep. 29, 2017 USD ($) intercompany_note
Match Group \| Employee Matters Agreement
Related Party Transaction [Line Items]
Shares received from related party pursuant to employee matters agreement (in shares) \| shares				0.8	3.0	11.9
Shares received from related party as reimbursement for exercise and settlement of equity awards denominated in shares of subsidiary (in shares) \| shares				0.7	2.5	11.3
Shares received from related party as reimbursement for exercise and vesting of equity awards denominated in shares of parent (in shares) \| shares				0.1	0.5	0.6
Match Group \| Services Agreement
Related Party Transaction [Line Items]
Payments received from related parties				$ 7,900,000	$ 7,600,000	$ 9,900,000
Match Group \| Leased Office Space
Related Party Transaction [Line Items]
Expenses from transactions with related parties				5,800,000	5,200,000	5,100,000
Match Group \| Tax Sharing Agreement
Related Party Transaction [Line Items]
Payments received from related parties				0	7,000,000.0	$ 10,900,000
Due from related parties				$ 200,000	$ 0
Match Group \| Net Operating Loss Sold
Related Party Transaction [Line Items]
Expenses from transactions with related parties		$ 900,000
ANGI Homeservices \| Employee Matters Agreement
Related Party Transaction [Line Items]
Shares received from related party pursuant to employee matters agreement (in shares) \| shares				0.5	0.9	0.4
ANGI Homeservices \| Services Agreement
Related Party Transaction [Line Items]
Payments received from related parties				$ 4,800,000	$ 5,700,000	$ 1,700,000
Due to related parties				0	100,000
ANGI Homeservices \| Tax Sharing Agreement
Related Party Transaction [Line Items]
Current notes receivable due from related party				200,000	$ 12,100,000
Payments received from related party tax expense			$ 11,400,000
ANGI Homeservices \| Intercompany Notes
Related Party Transaction [Line Items]
Number of related party debt instruments \| intercompany_note							2
ANGI Homeservices \| Payoff Intercompany Note
Related Party Transaction [Line Items]
Current notes receivable due from related party							$ 61,500,000
ANGI Homeservices \| Working Capital Intercompany Note
Related Party Transaction [Line Items]
Current notes receivable due from related party							$ 15,000,000
ANGI Homeservices \| Sublease Agreement
Related Party Transaction [Line Items]
Due to related parties				900,000
Related party costs				$ 1,400,000
Other Affiliates
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 aircraft				$ 17,400,000
Proportion of total purchase price and refurbish costs paid in related party transaction (as a percent)				50.00%
Ownership interest held by each of the Company and Expedia in an entity employing aircraft flight crew (as a percent)				50.00%
Expedia \| Corporate Aircraft Purchase
Related Party Transaction [Line Items]
Expenses from transactions with related parties				$ 23,000,000
Proportion of total purchase price and refurbish costs paid in related party transaction (as a percent)				50.00%
Expected costs from transactions with related party				$ 72,300,000
Class B Common Stock \| ANGI Homeservices \| Angie's List Merger Agreement
Related Party Transaction [Line Items]
Stock received from related party (shares) \| shares	5.1