Acquisitions and Dispositions (Details 6) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Broadcast advertising relationships [Member]
Amortization of definite-lived intangible assets acquired in the CMP Acquisition, in relation to the expected economic benefits of such assets
Estimated Useful Life in Years	6 years
Fair Value	$ 235,800
Affiliate relationships [Member]
Amortization of definite-lived intangible assets acquired in the CMP Acquisition, in relation to the expected economic benefits of such assets
Estimated Useful Life in Years	5 years
Fair Value	40,700
Network advertising relationships [Member]
Amortization of definite-lived intangible assets acquired in the CMP Acquisition, in relation to the expected economic benefits of such assets
Estimated Useful Life in Years	5 years
Fair Value	18,300
Other contracts and agreements [Member]
Amortization of definite-lived intangible assets acquired in the CMP Acquisition, in relation to the expected economic benefits of such assets
Fair Value	$ 38,680
Other contracts and agreements [Member] | Maximum [Member]
Amortization of definite-lived intangible assets acquired in the CMP Acquisition, in relation to the expected economic benefits of such assets
Estimated Useful Life in Years	4 years
Other contracts and agreements [Member] | Minimum [Member]
Amortization of definite-lived intangible assets acquired in the CMP Acquisition, in relation to the expected economic benefits of such assets
Estimated Useful Life in Years	2 years