v3.26.3
RELATED PARTY TRANSACTIONS (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Mar. 31, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Related Party Transaction [Line Items]            
Selling, general and administrative expenses $ 400,590 $ 379,167   $ 1,243,477 $ 1,106,809  
Other current liabilities 955,974     955,974   $ 384,588
Equity-based compensation       119,630 83,165  
Revenues 1,360,155 1,119,914   4,504,109 3,697,156  
Deferred revenue 494,467     494,467   663,015
Direct operating costs 489,025 439,653   1,779,505 1,483,652  
EGH And Its Subsidiaries [Member]            
Related Party Transaction [Line Items]            
Reimbursed costs         100  
Cash received for services provided       5,200 6,300  
Other current liabilities $ 28,626     28,626   $ 31,890
EGH And Its Subsidiaries [Member] | Acquired Businesses from Endeavor Group Holdings, Inc. [Member]            
Related Party Transaction [Line Items]            
Selling, general and administrative expenses     $ 21,700      
EGH And Its Subsidiaries [Member] | Transition Services Agreement [Member]            
Related Party Transaction [Line Items]            
Reimbursed costs       $ 32,300 32,700  
EGH And Its Subsidiaries [Member] | TKO Group Holdings, Inc. [Member]            
Related Party Transaction [Line Items]            
Company's ownership interest percentage 64.60%     64.60%    
Euroleague [Member] | Technical Services [Member]            
Related Party Transaction [Line Items]            
Revenues   700     $ 16,200  
Direct operating costs   $ 0   $ 200