v2.4.0.6

LONG-TERM DEBT LIABILITIES - Senior Unsecured Debt (Details) (USD $) | 12 Months Ended
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Dec. 31, 2012
Debt Instrument [Line Items] |
Senior Notes | $ 220,000,000
Net Proceeds | 212,700,000
Debt Instrument Original Issue Discount | 2,900,000
Minimum denominations | $ 2,000
Senior Unsecured Debt | On or After December 1, 2015 |
Debt Instrument [Line Items] |
Redemption of the principal amount | 105.25%
Senior Unsecured Debt | After December 1, 2016 |
Debt Instrument [Line Items] |
Redemption of the principal amount | 102.63%

X
- Definition The original issue discount for the senior unsecured notes + References No definition available. + Details
Name: | etm_DebtInstrumentOriginalIssueDiscount
Namespace Prefix: | etm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Senior notes redeemed at a percentage of principal amount of debt. + References No definition available. + Details
Name: | etm_RedemptionPricePercentageOfPrincipalAmount
Namespace Prefix: | etm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Senior Notes in minimum denominations. + References No definition available. + Details
Name: | etm_SeniorNotesMinimumDenominations
Namespace Prefix: | etm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References No definition available. + Details
Name: | us-gaap_ProceedsFromIssuanceOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_SeniorNotes
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant