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LONG-TERM DEBT - Schedule Of Long-Term Debt Outstanding (Detail) - USD ($) |  |  |  | 3 Months Ended | 6 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 29, 2018 | Jun. 14, 2018 | Jan. 04, 2018 | Jun. 30, 2018 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 01, 2018 | Apr. 28, 2018 | Mar. 26, 2018 | Mar. 14, 2018 | Jan. 16, 2018 | Dec. 31, 2017
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total consolidated secured debt |  |  |  | $ 129,201,000 | $ 129,201,000 |  |  |  |  |  |  | $ 13,283,883,000
Long-term debt |  |  |  | 20,546,738,000 | 20,546,738,000 |  |  |  |  |  |  | 20,649,181,000
Long-term debt fees |  |  |  | (31,188,000) | (31,188,000) |  |  |  |  |  |  | (109,071,000)
Long-term debt, net subject to compromise |  |  |  | 15,149,210,000 | 15,149,210,000 |  |  |  |  |  |  | 0
Less: current portion |  |  |  | 125,429,000 | 125,429,000 |  |  |  |  |  |  | 14,972,367,000
Total long-term debt |  |  |  | 5,272,099,000 | 5,272,099,000 |  |  |  |  |  |  | 5,676,814,000
Additional borrowed on receivables based credit facility |  |  |  |  | 143,332,000 | $ 3,125,000 |  |  |  |  |  |
Borrowings repaid under receivables based credit facility |  |  |  |  | 133,308,000 | $ 25,761,000 |  |  |  |  |  |
Write-off of deferred long-term debt fees |  |  |  | 12,409,000 | 67,079,000 |  |  |  |  |  |  |
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 |  |  |  |  | $ 6,300,000,000 |  | 6,300,000,000
Receivables Based Credit Facility Due 2020 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total consolidated secured debt |  |  |  | 0 | 0 |  |  |  |  |  |  | 405,000,000
Receivables Based Credit Facility Due 2020 | Line of Credit | Subsidiary | Revolving credit commitment |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Borrowings repaid under receivables based credit facility |  | $ 74,300,000 |  |  |  |  |  |  |  |  |  |
Receivables Based Credit Facility Due 2020 | Secured Debt | Subsidiary |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Borrowings repaid under receivables based credit facility |  | 306,400,000 |  |  |  |  |  |  |  |  |  |
DIP Facility |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total consolidated secured debt |  |  |  | 125,000,000 | 125,000,000 |  |  |  |  |  |  | 0
Additional borrowed on receivables based credit facility |  |  |  |  | 125,000,000 |  |  |  |  |  |  |
DIP Facility | Line of Credit |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowings provided under credit facility |  |  |  | 417,700,000 | 417,700,000 |  |  |  |  |  |  |
Outstanding borrowings under facility |  |  |  | 125,000,000 | 125,000,000 |  |  |  |  |  |  |
Letters of credit outstanding |  |  |  | 65,300,000.0 | 65,300,000.0 |  |  |  |  |  |  |
Line of credit, excess availability |  |  |  | 189,900,000 | 189,900,000 |  |  |  |  |  |  |
DIP Facility | Line of Credit | Availability Block Requirement |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit, excess availability |  |  |  | 37,500,000 | 37,500,000 |  |  |  |  |  |  |
DIP Facility | Line of Credit | Subsidiary |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
DIP Facility, aggregate principal amount |  | 450,000,000.0 |  |  |  |  |  |  |  |  |  |
Additional borrowed on receivables based credit facility |  |  |  |  | 125,000,000 |  |  |  |  |  |  |
DIP Facility | Line of Credit | Subsidiary | Revolving credit commitment |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
DIP Facility, aggregate principal amount |  | $ 450,000,000 |  |  |  |  |  |  |  |  |  |
9.0% Priority Guarantee Notes Due 2019 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total consolidated secured debt |  |  |  | $ 0 | $ 0 |  |  |  |  | $ 1,999,800,000 |  | 1,999,815,000
Stated interest rate |  |  |  | 9.00% | 9.00% |  |  |  |  | 9.00% |  |
9.0% Priority Guarantee Notes Due 2021 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total consolidated secured debt |  |  |  | $ 0 | $ 0 |  |  |  |  | $ 1,750,000,000 |  | 1,750,000,000
Stated interest rate |  |  |  | 9.00% | 9.00% |  |  |  |  | 9.00% |  |
11.25% Priority Guarantee Notes Due 2021 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total consolidated secured debt |  |  |  | $ 0 | $ 0 |  |  |  |  | $ 870,500,000 |  | 870,546,000
Stated interest rate |  |  |  | 11.25% | 11.25% |  |  |  |  | 11.25% |  |
9.0% Priority Guarantee Notes Due 2022 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total consolidated secured debt |  |  |  | $ 0 | $ 0 |  |  |  |  | $ 1,000,000,000 |  | 1,000,000,000
Stated interest rate |  |  |  | 9.00% | 9.00% |  |  |  |  | 9.00% |  |
10.625% Priority Guarantee Notes Due 2023 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total consolidated secured debt |  |  |  | $ 0 | $ 0 |  |  |  |  | $ 950,000,000 |  | 950,000,000
Stated interest rate |  |  |  | 10.625% | 10.625% |  |  |  |  | 10.625% |  |
CCO Receivables Based Credit Facility Due 2023 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total consolidated secured debt |  |  |  | $ 0 | $ 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 |  |  |  |  |  |  |  |  |  |  |
Incremental increase of facility | $ 50,000,000 |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, term | 5 years |  |  |  |  |  |  |  |  |  |  |
CCO Receivables Based Credit Facility Due 2023 | Line of Credit | Subsidiary | Revolving credit commitment |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowings provided under credit facility |  |  |  | 112,200,000.0 | 112,200,000.0 |  |  |  |  |  |  |
Letters of credit outstanding |  |  |  | 60,700,000 | 60,700,000 |  |  |  |  |  |  |
Line of credit, excess availability |  |  |  | 51,500,000.0 | 51,500,000.0 |  |  |  |  |  |  |
Other secured subsidiary debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total consolidated secured debt |  |  |  | 4,201,000 | 4,201,000 |  |  |  |  | $ 6,100,000 |  | 8,522,000
14.0% Senior Notes Due 2021 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | $ 0 | $ 0 |  |  |  |  |  |  | 1,763,925,000
Stated interest rate |  |  |  | 14.00% | 14.00% |  |  | 14.00% | 14.00% | 14.00% |  |
Senior notes due 2016 |  |  |  |  |  |  |  |  |  | $ 1,781,600,000 |  |
Legacy Notes |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | $ 0 | $ 0 |  |  |  |  |  |  | 475,000,000
Senior notes due 2016 |  |  |  |  |  |  |  |  |  | 475,000,000 |  |
10.0% Senior Notes Due 2018 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | 0 | 0 |  |  |  |  |  |  | $ 47,482,000
Stated interest rate |  |  |  |  |  |  |  |  |  |  |  | 10.00%
10.0% Senior Notes Due 2018 | Subsidiary |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Repayments of notes |  |  | $ 5,300,000 |  |  |  |  |  |  |  |  |
10.0% Senior Notes Due 2018 | Senior Notes | Subsidiary |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt repurchased |  |  | $ 5,400,000 |  |  |  |  |  |  |  | $ 42,100,000 |
CCWH Senior Notes due 2022 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | 2,725,000,000 | 2,725,000,000 |  |  |  |  |  |  | $ 2,725,000,000
CCWH Senior Subordinated Notes due 2020 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | 2,200,000,000 | 2,200,000,000 |  |  |  |  |  |  | 2,200,000,000
Clear Channel International B.V. Senior Notes due 2020 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | 375,000,000 | 375,000,000 |  |  |  |  |  |  | 375,000,000
Other subsidiary debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | 0 | 0 |  |  |  |  |  |  | 24,615,000
Senior notes due 2016 |  |  |  |  |  |  |  |  |  | $ 16,200,000 |  |
Purchase accounting adjustments and original issue discount |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | (485,000) | (485,000) |  |  |  |  |  |  | $ (136,653,000)
Receivables Based Credit Facility Due 2023 | Subsidiary | Revolving credit commitment |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowings provided under credit facility |  |  |  |  |  |  | $ 75,000,000.0 |  |  |  |  |
Legacy Notes Due 2018 [Member] | Senior Notes | Subsidiary |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Senior notes due 2016 |  |  |  | 175,000,000 | 175,000,000 |  |  |  |  |  |  |
Legacy Notes Due 2027 | Senior Notes | Subsidiary |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Senior notes due 2016 |  |  |  | 300,000,000 | 300,000,000 |  |  |  |  |  |  |
Legacy Notes Due 2016 [Member] | Senior Notes | Subsidiary |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Senior notes due 2016 |  |  |  | $ 57,100,000 | $ 57,100,000 |  |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) | DIP Facility | Line of Credit | Subsidiary |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on LIBOR |  | 2.25% |  |  |  |  |  |  |  |  |  |

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- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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