Annual report [Section 13 and 15(d), not S-K Item 405]

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Deferred Revenues: Market Access Fees from Sports Wagering Agreements (Details)

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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Deferred Revenues: Market Access Fees from Sports Wagering Agreements (Details) - USD ($)
$ in Millions
 3 Months Ended 17 Months Ended 37 Months Ended 54 Months Ended
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Jul. 31, 2024
Dec. 31, 2023
Basis Of Presentation [Line Items]            
Liabilities in other accrued expenses   $ 0.9 $ 0.9 $ 0.9   $ 0.8
Term of agreement     10 years      
COLORADO            
Basis Of Presentation [Line Items]            
Minimum revenues receivable         $ 0.5  
INDIANA            
Basis Of Presentation [Line Items]            
Minimum revenues receivable   0.5 $ 0.5 0.5    
Upfront Fee Received Being Amortized     1.0      
ILLINOIS            
Basis Of Presentation [Line Items]            
Minimum revenues receivable   5.0 $ 5.0 5.0    
Upfront Fee Received Being Amortized   $ 5.0        
Term of agreement   8 years        
Sports Wagering Agreements | COLORADO            
Basis Of Presentation [Line Items]            
Deferred revenue $ 0.9          
Sports Wagering Agreements, One [Member] | COLORADO            
Basis Of Presentation [Line Items]            
Upfront Fee Received Being Amortized       $ 1.0    
Term of agreement       10 years