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LONG-TERM DEBT - Schedule Of Long-Term Debt Outstanding (Detail) - USD ($) | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Feb. 04, 2019 | Dec. 31, 2018 | Jun. 14, 2018 | Mar. 26, 2018
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | $ 3,828,000 |  |  | $ 3,882,000 |  |
Long-term debt | 20,483,862,000 |  |  | 20,472,917,000 |  |
Long-term debt fees | (44,322,000) |  |  | (25,808,000) |  |
Long-term debt, net subject to compromise | 15,143,713,000 |  |  | 15,149,477,000 |  |
Less: Current portion | 46,744,000 |  |  | 46,332,000 |  |
Total long-term debt | 5,293,405,000 |  |  | 5,277,108,000 |  |
Additional borrowed on receivables based credit facility | 0 | $ 25,333,000 |  |  |  |
Borrowings repaid under receivables based credit facility | 0 | 59,000,000 |  |  |  |
Write-off of deferred long-term debt fees | 0 | 54,670,000 |  |  |  |
Write-off of original issue discount on debt subject to compromise | 0 | $ 131,100,000 |  |  |  |
Senior Secured Credit Facilities |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | 0 |  |  | 0 |  |
DIP Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | 0 |  |  | 0 |  |
DIP Facility | Line of Credit |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Maximum borrowings provided under credit facility | 426,800,000.0 |  |  |  |  |
Outstanding borrowings under facility | 0 |  |  |  |  |
Letters of credit outstanding | 59,000,000 |  |  |  |  |
Line of credit, excess availability | 330,300,000 |  |  |  |  |
DIP Facility | Line of Credit | Availability Block Requirement |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit, excess availability | 37,500,000 |  |  |  |  |
DIP Facility | Line of Credit | Subsidiary |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DIP Facility, aggregate principal amount |  |  |  |  | $ 450,000,000.0 |
9.0% Priority Guarantee Notes Due 2019 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | $ 0 |  |  | 0 |  |
Stated interest rate | 9.00% |  |  |  |  |
9.0% Priority Guarantee Notes Due 2021 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | $ 0 |  |  | 0 |  |
Stated interest rate | 9.00% |  |  |  |  |
11.25% Priority Guarantee Notes Due 2021 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | $ 0 |  |  | 0 |  |
Stated interest rate | 11.25% |  |  |  |  |
9.0% Priority Guarantee Notes Due 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | $ 0 |  |  | 0 |  |
Stated interest rate | 9.00% |  |  |  |  |
10.625% Priority Guarantee Notes Due 2023 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | $ 0 |  |  | 0 |  |
Stated interest rate | 10.625% |  |  |  |  |
CCO Receivables Based Credit Facility Due 2023 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | $ 0 |  |  | 0 |  |
CCO Receivables Based Credit Facility Due 2023 | Subsidiary | Revolving credit commitment |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Maximum borrowings provided under credit facility | 125,000,000.0 |  |  |  |  |
CCO Receivables Based Credit Facility Due 2023 | Line of Credit | Subsidiary | Revolving credit commitment |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Maximum borrowings provided under credit facility | 116,200,000.0 |  |  |  |  |
Letters of credit outstanding | 85,500,000 |  |  |  |  |
Line of credit, excess availability | 30,700,000 |  |  |  |  |
Other secured subsidiary debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | 3,828,000 |  |  | 3,882,000 |  |
14.0% Senior Notes Due 2021 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt | $ 0 |  |  | 0 |  |
Stated interest rate | 14.00% |  |  |  |  | 14.00%
Legacy Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt | $ 0 |  |  | 0 |  |
CCWH Senior Notes due 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt | 2,725,000,000 |  |  | 2,725,000,000 |  |
CCWH Subordinated Notes due 2020(5) |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt | 0 |  |  | 2,200,000,000 |  |
CCWH Subordinated Notes due 2024(5) |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt | 2,235,000,000 |  |  | 0 |  |
Clear Channel International B.V. Senior Notes due 2020 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt | 375,000,000 |  |  | 375,000,000 |  |
Other subsidiary debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt | 46,510,000 |  |  | 46,105,000 |  |
Purchase accounting adjustments and original issue discount |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt | $ (867,000) |  |  | $ (739,000) |  |
CCWH Senior A Subordinated Notes Due 2020 | CCWH Senior Notes due 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt |  |  | $ 275,000,000 |  |  |
Stated interest rate |  |  | 7.625% |  |  |
CCWH Senior B Subordinated Notes Due 2020 | CCWH Senior Notes due 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt |  |  | $ 1,925,000,000 |  |  |
Stated interest rate |  |  | 7.625% |  |  |
New CCWH Subordinated Notes | CCWH Senior Notes due 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt |  |  | $ 2,235,000,000 |  |  |
Stated interest rate |  |  | 9.25% |  |  |
Legacy Notes Due 2018 | Senior Notes | Subsidiary |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate | 6.875% |  |  |  |  |
Senior notes | $ 175,000,000 |  |  |  |  |
Legacy Notes Due 2027 | Senior Notes | Subsidiary |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate | 7.25% |  |  |  |  |
Senior notes | $ 300,000,000 |  |  |  |  |
Legacy Notes Due 2016 | Senior Notes | Subsidiary |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate | 5.50% |  |  |  |  |
Senior notes | $ 57,100,000.0 |  |  |  |  |
Liabilities Subject To Compromise | Senior Secured Credit Facilities |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | 6,300,000,000 |  |  |  |  |
Liabilities Subject To Compromise | 9.0% Priority Guarantee Notes Due 2019 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | 1,999,800,000 |  |  |  |  |
Liabilities Subject To Compromise | 9.0% Priority Guarantee Notes Due 2021 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | 1,750,000,000 |  |  |  |  |
Liabilities Subject To Compromise | 11.25% Priority Guarantee Notes Due 2021 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | 870,500,000 |  |  |  |  |
Liabilities Subject To Compromise | 9.0% Priority Guarantee Notes Due 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | 1,000,000,000 |  |  |  |  |
Liabilities Subject To Compromise | 10.625% Priority Guarantee Notes Due 2023 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | 950,000,000 |  |  |  |  |
Liabilities Subject To Compromise | Other secured subsidiary debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total consolidated secured debt | 6,000,000 |  |  |  |  |
Liabilities Subject To Compromise | 14.0% Senior Notes Due 2021 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes | 1,781,600,000.0 |  |  |  |  |
Liabilities Subject To Compromise | Legacy Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes | 475,000,000 |  |  |  |  |
Liabilities Subject To Compromise | Other subsidiary debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes | $ 10,800,000.0 |  |  |  |  |

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