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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
USD ($)
segment
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Mar. 27, 2020
USD ($)
Subsequent Event [Line Items]        
Number of reportable segments | segment 3      
Allowable interest deductions, increase (decrease) during period, CARES Act     $ 179,400  
Employer social security payments, deferred payment, CARES Act     29,300  
Refundable payroll tax credit, CARES Act       $ 12,400
Refundable payroll tax credit received, CARES Act $ 7,900 $ 3,800 700  
Cash and cash equivalents $ 336,236 352,129    
Media representation contracts term 10 years      
Advertising expenses $ 166,100 166,100 167,200  
Advertising expense, barter costs $ 138,300 $ 130,100 $ 133,000  
Computer equipment and software        
Subsequent Event [Line Items]        
Estimate useful lives 3 years      
Minimum | Buildings and improvements        
Subsequent Event [Line Items]        
Estimate useful lives 10 years      
Minimum | Towers, transmitters and studio equipment        
Subsequent Event [Line Items]        
Estimate useful lives 5 years      
Minimum | Furniture and other equipment        
Subsequent Event [Line Items]        
Estimate useful lives 5 years      
Maximum | Buildings and improvements        
Subsequent Event [Line Items]        
Estimate useful lives 39 years      
Maximum | Towers, transmitters and studio equipment        
Subsequent Event [Line Items]        
Estimate useful lives 40 years      
Maximum | Furniture and other equipment        
Subsequent Event [Line Items]        
Estimate useful lives 7 years