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LONG-TERM DEBT - Interest Rate and Fees and Prepayments (Narrative) (Details) - USD ($) |  |  | 12 Months Ended
--- | --- | --- | ---
Jun. 14, 2018 | Jun. 01, 2018 | Dec. 31, 2018
Debt Instrument [Line Items] |  |  |
Interest Rate |  |  | 8.75%
Line of Credit | CCOH | DIP Facility | Revolving credit facility |  |  |
Debt Instrument [Line Items] |  |  |
DIP Facility, unused capacity, commitment fee percentage | 0.50% |  |
Line of credit facility, letter of credit fee | 2.25% |  |
Reduction of borrowing base and commitments to arrive at exposure | $ 37,500,000.0 |  |
Debt instrument, covenant terms, minimum excess availability | $ 0 |  |
Line of Credit | CCOH | DIP Facility | Revolving credit facility | Federal funds effective rate |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 0.50% |  |
Line of Credit | CCOH | DIP Facility | Revolving credit facility | One-month Eurodollar |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 1.00% |  |
Line of Credit | CCOH | DIP Facility | Revolving credit facility | Base rate |  |  |
Debt Instrument [Line Items] |  |  |
DIP Facility, interest rate on borrowings outstanding | 1.25% |  |
Line of Credit | CCOH | DIP Facility | Revolving credit facility | Eurocurrency rate |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 1.00% |  |
DIP Facility, interest rate on borrowings outstanding | 2.25% |  |
Line of Credit | CCOH | CCO Receivables Based Credit Facility Due 2023 | Revolving credit facility |  |  |
Debt Instrument [Line Items] |  |  |
DIP Facility, unused capacity, commitment fee percentage | 0.375% |  |
Line of credit facility, letter of credit fee | 2.00% |  |
Debt instrument, credit agreement termination, days prior to maturity |  | 90 days |
Debt instrument, credit agreement termination, maturity threshold, maximum outstanding borrowing amount |  | $ 250,000,000 |
Line of Credit | CCOH | CCO Receivables Based Credit Facility Due 2023 | Revolving credit facility | Federal funds effective rate |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 0.50% |  |
Line of Credit | CCOH | CCO Receivables Based Credit Facility Due 2023 | Revolving credit facility | One-month Eurodollar |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 1.00% |  |
Line of Credit | CCOH | CCO Receivables Based Credit Facility Due 2023 | Revolving credit facility | Base rate |  |  |
Debt Instrument [Line Items] |  |  |
DIP Facility, interest rate on borrowings outstanding | 1.00% |  |
Line of Credit | CCOH | CCO Receivables Based Credit Facility Due 2023 | Revolving credit facility | Eurocurrency rate |  |  |
Debt Instrument [Line Items] |  |  |
DIP Facility, interest rate on borrowings outstanding | 2.00% |  |
Receivables Based Credit Facility | Federal funds effective rate |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate |  |  | 0.50%
Senior Secured Credit Facility | Term Loan D | Base rate |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate |  |  | 5.75%
Senior Secured Credit Facility | Term Loan D | Eurocurrency rate |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate |  |  | 6.75%
Senior Secured Credit Facility | Term Loan E | Base rate |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate |  |  | 6.50%
Senior Secured Credit Facility | Term Loan E | Eurocurrency rate |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate |  |  | 7.50%

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