v2.4.0.8

ACQUISITONS AND OTHER (Details) (USD $) In Millions, unless otherwise specified | Jun. 30, 2013 | Mar. 31, 2013 | Mar. 31, 2011
--- | --- | --- | ---
Business Acquisition Purchase Price Allocation Assets Acquired Liabilities Assumed Net [Abstract] |  |  |
Lease Abandonment Liability | $ 0 | $ 0.7 |
Lease Abandonment Expense |  |  | 0.8
Lease Abandonment Expense Recovery | $ 0.6 |  |

X
- Definition The expense associated with the ceased use of facilities. + References No definition available. + Details
Name: | etm_LeaseAbandonmentExpense
Namespace Prefix: | etm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The recovery of a previously recorded expense associated with the ceased use of facilities. + References No definition available. + Details
Name: | etm_LeaseAbandonmentExpenseRecovery
Namespace Prefix: | etm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Future value of property lease obligations related to ceased use of facilities. + References No definition available. + Details
Name: | etm_LeaseAbandonmentLiability
Namespace Prefix: | etm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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