Goodwill and Other Intangible Assets (Summary Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount of amortizable intangible assets	$ 986,249	$ 1,015,724
Accumulated amortization	(739,426)	(729,951)
Amortizable intangible assets, net of accumulated amortization	246,823	285,773
Trademarks	19,900	19,900
Total intangible assets, gross	1,006,149	1,035,624
Total intangible assets, net	266,723	305,673
Affiliation Agreements And Affiliate Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount of amortizable intangible assets	911,357	911,357
Accumulated amortization	(672,457)	(637,394)
Amortizable intangible assets, net of accumulated amortization	238,900	273,963
Advertiser Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount of amortizable intangible assets	74,248	103,723
Accumulated amortization	(66,514)	(92,166)
Amortizable intangible assets, net of accumulated amortization	7,734	11,557
Other Amortizable Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount of amortizable intangible assets	644	644
Accumulated amortization	(455)	(391)
Amortizable intangible assets, net of accumulated amortization	$ 189	$ 253