v2.4.1.9

SHARE-BASED COMPENSATION - Other Award Information (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	476,925us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber		486,675us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Weighted average remaining contractual life options outstanding	3 years 10 months 24 days
Weighted average exercise price options outstanding	$ 2.02us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice		$ 2.11us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Number of options exercisable	473,175us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
Weighted average exercise price options exercisable	$ 1.97us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	$ 698us-gaap_AllocatedShareBasedCompensationExpense	$ 855us-gaap_AllocatedShareBasedCompensationExpense
Station operating expenses [Member]
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	177us-gaap_AllocatedShareBasedCompensationExpense / etm_ScheduleOfEmployeeserviceShareBasedCompensationAllocationOfRecognizedPeriodCostsByReportLineAxisAxis = etm_StationOperatingExpensesMember	135us-gaap_AllocatedShareBasedCompensationExpense / etm_ScheduleOfEmployeeserviceShareBasedCompensationAllocationOfRecognizedPeriodCostsByReportLineAxisAxis = etm_StationOperatingExpensesMember
Corporate general and administrative expenses [Member]
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	934us-gaap_AllocatedShareBasedCompensationExpense / etm_ScheduleOfEmployeeserviceShareBasedCompensationAllocationOfRecognizedPeriodCostsByReportLineAxisAxis = us-gaap_GeneralAndAdministrativeExpenseMember	1,073us-gaap_AllocatedShareBasedCompensationExpense / etm_ScheduleOfEmployeeserviceShareBasedCompensationAllocationOfRecognizedPeriodCostsByReportLineAxisAxis = us-gaap_GeneralAndAdministrativeExpenseMember
Stock-based compensation expense included in operating expenses [Member]
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	1,111us-gaap_AllocatedShareBasedCompensationExpense / etm_ScheduleOfEmployeeserviceShareBasedCompensationAllocationOfRecognizedPeriodCostsByReportLineAxisAxis = etm_StockBasedCompensationExpenseIncludedInOperatingExpensesMember	1,208us-gaap_AllocatedShareBasedCompensationExpense / etm_ScheduleOfEmployeeserviceShareBasedCompensationAllocationOfRecognizedPeriodCostsByReportLineAxisAxis = etm_StockBasedCompensationExpenseIncludedInOperatingExpensesMember
Income tax benefit (net of a fully reserved valuation allowance for prior year) [Member]
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	$ 413us-gaap_AllocatedShareBasedCompensationExpense / etm_ScheduleOfEmployeeserviceShareBasedCompensationAllocationOfRecognizedPeriodCostsByReportLineAxisAxis = etm_IncomeTaxBenefitNetOfFullyReservedValuationAllowanceForPriorYearMember	$ 353us-gaap_AllocatedShareBasedCompensationExpense / etm_ScheduleOfEmployeeserviceShareBasedCompensationAllocationOfRecognizedPeriodCostsByReportLineAxisAxis = etm_IncomeTaxBenefitNetOfFullyReservedValuationAllowanceForPriorYearMember
Exercise prices from 1.34 to 1.34
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	436,925us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = etm_ExercisePricesOneMember
Weighted average remaining contractual life options outstanding	3 years 10 months 24 days
Weighted average exercise price options outstanding	$ 1.34us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = etm_ExercisePricesOneMember
Number of options exercisable	436,925us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = etm_ExercisePricesOneMember
Weighted average exercise price options exercisable	$ 1.34us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = etm_ExercisePricesOneMember
Exercise prices from 2.02 to 11.78
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	40,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = etm_ExercisePricesRangeTwoMember
Weighted average remaining contractual life options outstanding	4 years
Weighted average exercise price options outstanding	$ 9.46us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = etm_ExercisePricesRangeTwoMember
Number of options exercisable	36,250us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = etm_ExercisePricesRangeTwoMember
Weighted average exercise price options exercisable	$ 9.54us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = etm_ExercisePricesRangeTwoMember

X

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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X

- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

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-Publisher FASB

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-SubTopic 10

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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901



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X

- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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-Publisher FASB

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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X

- Definition

The number of exercisable share options (fully vested and expected to vest) that may be converted as of the balance sheet date.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest.

+ References

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