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BASIS OF PRESENTATION AND OTHER INFORMATION Basis of Presentation and Other Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Accounting Policies [Abstract]      
Cash received that includes the face value of tickets sold on behalf of ticketing clients and their share of service charges $ 847,600,000   $ 859,100,000
Tax benefit recognized for losses incurred $ 0 $ 0