v3.10.0.1

REVENUE - Disaggregation of Revenue - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Disaggregation Of Revenue [Abstract] |  |  |  |
Broadcast revenues | $ 348,066 | $ 110,430 | $ 963,118 | $ 315,942
Event and other revenues | 26,391 | 9,464 | 77,252 | 25,601
Trade and barter revenues | 4,051 | 2,405 | 10,822 | 4,727
Agency commissions | $ 0 | $ 0 | $ 0 | $ 0

X
- References No definition available. + Details
Name: | etm_AgencyCommissions
Namespace Prefix: | etm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | etm_BroadcastRevenues
Namespace Prefix: | etm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | etm_EventAndOtherRevenues
Namespace Prefix: | etm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | etm_TradeAndBarterRevenues
Namespace Prefix: | etm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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