FRESH START ACCOUNTING - Narrative (Details)		3 Months Ended	5 Months Ended	9 Months Ended
	May 01, 2019 USD ($) $ / shares shares	Sep. 30, 2019 USD ($) $ / shares shares	Sep. 30, 2019 USD ($) $ / shares shares	Sep. 30, 2019 USD ($) station $ / shares shares	May 02, 2019 USD ($)	Mar. 31, 2019	Dec. 31, 2018 $ / shares shares	Sep. 30, 2018 USD ($)
Debt Instrument [Line Items]
Voting shares to predecessor company, less than	50.00%
Number of shares retained (in shares) | shares	31,269,762
Funding of Guarantor General Unsecured Recovery Cash Pool classified as restricted	$ 17,500,000
Funding of Guarantor General Unsecured Recovery Cash Pool at emergence classified as restricted	6,000,000
Funding of Guarantor General Unsecured Recovery Cash Pool, amount reclassified to cash	3,400,000
Write-off of prepaid premium on insurance policy	2,300,000
Accrual for future reimbursement of discounts	1,900,000
Accrued professional fees paid directly	21,200,000
Liabilities subject to compromise, accounts payable					$ 3,100,000
Unpaid professional fees	30,500,000
Payment of professional fees through the escrow account	9,260,000
Cash paid to settle certain creditor claims	1,800,000
Finance leases and other debt, noncurrent	10,300,000
Preferred stock, par value (in dollars per share) | $ / shares		$ 0.001	$ 0.001	$ 0.001			$ 0.001
Deferred taxes	596,850,000
Liabilities subject to compromise, adjustment to net deferred tax liabilities	21,500,000
Federal and state net operating loss carryforwards upon emergence	114,900,000
Compensation expense	$ 1,500,000
Common stock, shares issued (in shares) | shares		145,885,996	145,885,996	145,885,996
Number of securities called by warrants or rights (in shares) | shares	81,453,648
Number of radio stations owned | station				854
Operating lease weighted average discount rate	6.54%					12.44%
Fresh start adjustment to Operating lease right-of-use assets	$ 554,278,000	$ 541,200,000	$ 541,200,000	$ 541,200,000
Fresh-start adjustment to operating lease liabilities	458,989,000	541,200,000	541,200,000	541,200,000
Fresh-start adjustments, write-off of financing lease liability	900,000
Operating lease right-of-use assets		886,333,000	886,333,000	886,333,000
Accrued reorganization items, net								$ 500,000
Accrued professional fees								$ 56,200,000
Payment of professional fees	85,091,000	12,400,000	21,500,000
iHeart Operations, Inc.
Debt Instrument [Line Items]
Proceeds from issuance of preferred stock	$ 60,000,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.001
iHeartCommunications, Inc.
Debt Instrument [Line Items]
Percentage of economic rights prior to reorganization	89.10%
Percentage of voting rights prior to reorganization	99.00%
Term Loan Facility due 2026
Debt Instrument [Line Items]
Total consolidated secured debt	$ 3,500,000,000
New Senior Secured Notes
Debt Instrument [Line Items]
Total consolidated secured debt	$ 800,000,000
Debt instrument term	7 years
New Senior Unsecured Note
Debt Instrument [Line Items]
Unsecured debt	$ 1,450,000,000
Line of Credit | Asset-based Revolving Credit Facility due 2023
Debt Instrument [Line Items]
Maximum borrowings provided under credit facility		450,000,000	450,000,000	450,000,000
Revolving Credit Facility | Line of Credit | Asset-based Revolving Credit Facility due 2023
Debt Instrument [Line Items]
Maximum borrowings provided under credit facility		$ 450,000,000	$ 450,000,000	$ 450,000,000
Class B Shares
Debt Instrument [Line Items]
Common stock, shares issued (in shares) | shares	6,947,567	6,925,976	6,925,976	6,925,976			555,556
Class A Shares
Debt Instrument [Line Items]
Common stock, shares issued (in shares) | shares	56,861,941	57,670,714	57,670,714	57,670,714			32,292,944
Property, Plant and Equipment
Debt Instrument [Line Items]
Property, plant and equipment, net	$ 182,900,000
Favorable Leased Assets
Debt Instrument [Line Items]
Operating lease right-of-use assets		$ 13,100,000	$ 13,100,000	$ 13,100,000
Software Technology Assets
Debt Instrument [Line Items]
Property, plant and equipment, net	$ 151,000,000
iHeartCommunications, Inc. | Senior Notes | 6.375% Senior Secured Notes due 2026
Debt Instrument [Line Items]
Stated interest rate	6.375%