Quarterly report pursuant to Section 13 or 15(d)

REVENUE RECOGNITION (Deferred Revenue) (Details)

v3.21.2
REVENUE RECOGNITION (Deferred Revenue) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Deferred revenue, current $ 2,303,373   $ 2,303,373   $ 1,839,323 $ 1,400,000
Recognition of deferred revenue $ 346,153 $ 17,750 $ 420,872 $ 327,058    
Percentage of deferred revenue at December 31, 2020 expected to be recognized in 2021 and remaining deferred revenue 15.40%   15.40%      
Percentage of deferred revenue at December 31, 2020 that has been or will be refunded to fans, and reclassified to accrued expenses if not already refunded. 14.90%   14.90%      
Deferred Revenue, Noncurrent $ 149,400   $ 149,400   $ 88,600  
Concerts [Member]            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Recognition of deferred revenue 278,557 11,539 330,852 281,017    
Ticketing [Member]            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Recognition of deferred revenue 24,159 4,023 31,950 25,231    
Sponsorship and Advertising [Member]            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Recognition of deferred revenue 43,437 824 58,070 17,408    
Other and Corporate [Member]            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Recognition of deferred revenue $ 0 $ 1,364 $ 0 $ 3,402