Acquisitions and Dispositions Summary of Preliminary Purchase Price Allocation of Assets Sold (Details) (Townsquare Media, LLC, USD $) In Thousands, unless otherwise specified	0 Months Ended
	Nov. 14, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets	$ 1,860
Property and equipment (see Note 5)	6,345
Goodwill	13,680
Other assets	246
Current liabilities	(400)
Total purchase price	32,183
Less: Carrying value of stations transferred	(159,053)
Add: Cash received	235,028
Gain on asset exchange	108,158
Broadcast licenses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Intangible assets	9,900
Other intangibles
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Intangible assets	$ 552