Broadcast Licenses and Other Intangibles Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Indefinite-lived Intangible Assets [Line Items]
Balance at January 1, 2012	$ 90,356
Acquisitions	5
Balance at December 31, 2012	90,361
Radio [Member]
Indefinite-lived Intangible Assets [Line Items]
Balance at January 1, 2012	80,768
Acquisitions	5
Balance at December 31, 2012	80,773
Television [Member]
Indefinite-lived Intangible Assets [Line Items]
Balance at January 1, 2012	9,588
Acquisitions	0
Balance at December 31, 2012	$ 9,588