Annual report pursuant to Section 13 and 15(d)

REVENUE RECOGNITION (Sponsorship & Advertising Revenue) (Details)

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REVENUE RECOGNITION (Sponsorship & Advertising Revenue) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disaggregation of Revenue [Line Items]      
Revenue $ 1,861,178 $ 11,547,969 $ 10,787,800
Operating Segments [Member] | Sponsorship and Advertising [Member]      
Disaggregation of Revenue [Line Items]      
Revenue $ 203,676 $ 590,274 $ 503,968
Percentage of consolidated revenue 10.90% 5.10% 4.70%