XML 97 R77.htm IDEA: XBRL DOCUMENT v3.20.4
LONG-TERM DEBT - Size and Availability (Details) - Line of Credit - Asset-based Revolving Credit Facility Due 2023 - USD ($)
Jun. 14, 2018
Dec. 31, 2020
Dec. 31, 2019
May 01, 2019
Debt Instrument [Line Items]        
Maximum borrowing capacity   $ 450,000,000.0    
Revolving credit facility        
Debt Instrument [Line Items]        
Maximum borrowing capacity     $ 450,000,000  
Revolving credit facility | CCOH        
Debt Instrument [Line Items]        
Maximum borrowing capacity $ 450,000,000.0     $ 450,000,000.0
Line of credit facility, borrowing base terms, percentage of eligible accounts receivable 90.00%      
Line of credit facility, borrowing base terms, percentage of qualified cash 100.00%      
Maximum aggregate increase in credit facility $ 150,000,000.0