BASIS OF PRESENTATION AND OTHER INFORMATION (Basis of Presentation and Other Information) (Details) - USD ($) |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Dec. 31, 2020 |
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| Accounting Policies [Abstract] | |||
| Cash received that includes the face value of tickets sold on behalf of ticketing clients and their share of service charges. | $ 1,100,000,000 | $ 673,500,000 | |
| Investments in nonconsolidated affiliates | 208,100,000 | $ 170,500,000 | |
| Tax benefit recognized for losses incurred | $ 0 | $ 0 | |
| X | ||||||||||
- Definition The carrying amount of cash and cash equivalents of collected proceeds relating to the face value of the tickets sold on behalf of clients and client's share of convenience and order processing fees, which are payable to clients and reflected as accounts payable, client accounts. No definition available.
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| X | ||||||||||
- Definition The amount of tax benefit recognized for losses incurred in certain tax jurisdictions as the result of valuation allowances. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of investment in equity method investee and investment in and advance to affiliate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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