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v3.19.3.a.u2

OTHER INFORMATION - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Other Income and Expenses [Abstract] |  |
Expenses incurred related to capital structure | $ 23.1 | $ 41.8

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- Definition Restructuring Costs, Negotiations With Lenders And Other Activities + References No definition available. + Details
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Namespace Prefix: | ihrt_
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Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration