v3.19.2

DERIVATIVES AND HEDGING ACTIVITIES - Derivatives Collar Schedule (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019 USD ($)
Derivative Instrument and Hedging Activities [Line Items]
Aggregate notional amounts outstanding	$ 560
Designated as Hedging Instrument [Member]
Derivative Instrument and Hedging Activities [Line Items]
Aggregate notional amounts outstanding	560
Collar [Member] | Designated as Hedging Instrument [Member]
Derivative Instrument and Hedging Activities [Line Items]
Aggregate notional amounts expired	$ 560
Effective date	Jun. 25, 2019
Derivative Maturity Date	Jun. 24, 2028
Collar [Member] | Designated as Hedging Instrument [Member] | LIBOR [Member]
Derivative Instrument and Hedging Activities [Line Items]
Derivative, Cap Interest Rate	2.75%
Derivative, Floor Interest Rate	0.402%
Collar, Decrease Date June 29, 2020 [Member] | Designated as Hedging Instrument [Member]
Derivative Instrument and Hedging Activities [Line Items]
Aggregate notional amounts expired	$ 460
Collar, Decrease Date June 28, 2021 [Member] | Designated as Hedging Instrument [Member]
Derivative Instrument and Hedging Activities [Line Items]
Aggregate notional amounts expired	340
Collar, Decrease Date June 28, 2022 [Member] | Designated as Hedging Instrument [Member]
Derivative Instrument and Hedging Activities [Line Items]
Aggregate notional amounts expired	220
Collar, Decrease Date June 28, 2023 [Member] | Designated as Hedging Instrument [Member]
Derivative Instrument and Hedging Activities [Line Items]
Aggregate notional amounts expired	$ 90

X

- Definition

Aggregate notional amount of all expired derivatives. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a expired derivative instrument.

+ References

No definition available.

+ Details

Name:	etm_NotionalAmountOfExpiredDerivatives
Namespace Prefix:	etm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Cap rate on an interest rate derivative such as an interest rate cap or collar. If market rates exceed the cap rate, a payment or receipt is triggered on the contract.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeCapInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Floor rate on an interest rate derivative such as an interest rate floor or collar. If market rates falls below the floor rate, a payment or receipt is triggered on the contract.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFloorInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Date the entity entered into the derivative contract, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeInceptionDates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Date the derivative contract matures, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeMaturityDates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=etm_CollarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=etm_CollarDecreaseDateJune292020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=etm_CollarDecreaseDateJune282021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=etm_CollarDecreaseDateJune282022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=etm_CollarDecreaseDateJune282023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: