Goodwill and Other Intangible Assets (Summary Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Gross Carrying Amount of Amortizable Intangible Assets	$ 636,966	$ 654,283
Accumulated amortization	(91,441)	(83,359)
Amortizable intangible assets, net of accumulated amortization	545,525us-gaap_FiniteLivedIntangibleAssetsNet	570,924us-gaap_FiniteLivedIntangibleAssetsNet
Trademarks	19,900us-gaap_IndefiniteLivedTrademarks	19,900us-gaap_IndefiniteLivedTrademarks
Intangible Assets, Gross, Excluding Goodwill	656,866	674,183
Total intangible assets, net	565,425	590,824
Affiliate and Customer Relationships [Member]
Gross Carrying Amount of Amortizable Intangible Assets	542,166	555,742
Accumulated amortization	(87,056)	(80,351)
Amortizable intangible assets, net of accumulated amortization	455,110	475,391
Advertiser Relationships [Member]
Finite-Lived Intangible Asset, Useful Life	11 years
Gross Carrying Amount of Amortizable Intangible Assets	46,282	45,827
Accumulated amortization	(1,835)	(655)
Amortizable intangible assets, net of accumulated amortization	44,447	45,172
Trade Names [Member]
Gross Carrying Amount of Amortizable Intangible Assets	48,504	52,698
Accumulated amortization	(2,548)	(2,351)
Amortizable intangible assets, net of accumulated amortization	45,956	50,347
Other Amortizable Intangible Assets [Member]
Gross Carrying Amount of Amortizable Intangible Assets	14	16
Accumulated amortization	(2)	(2)
Amortizable intangible assets, net of accumulated amortization	$ 12	$ 14
Minimum [Member] \| Affiliate and Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life	17 years
Maximum [Member] \| Affiliate and Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life	25 years
Maximum [Member] \| Trade Names [Member]
Finite-Lived Intangible Asset, Useful Life	20 years

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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