Goodwill and Other Intangible Assets (Summary Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 654,283	$ 244,244
Finite-Lived Intangible Assets, Accumulated Amortization	(83,359)	(54,592)
Finite-Lived Intangible Assets, Net	570,924us-gaap_FiniteLivedIntangibleAssetsNet	189,652us-gaap_FiniteLivedIntangibleAssetsNet
Indefinite-Lived Trademarks	19,900us-gaap_IndefiniteLivedTrademarks	19,900us-gaap_IndefiniteLivedTrademarks
Intangible Assets, Gross (Excluding Goodwill)	674,183	264,144
Total intangible assets	590,824	209,552
Affiliate and Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	555,742
Finite-Lived Intangible Assets, Accumulated Amortization	(80,351)
Finite-Lived Intangible Assets, Net	475,391
Advertiser Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	45,827
Finite-Lived Intangible Assets, Accumulated Amortization	(655)
Finite-Lived Intangible Assets, Net	45,172
Finite-Lived Intangible Asset, Useful Life	11 years
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	52,698
Finite-Lived Intangible Assets, Accumulated Amortization	(2,351)
Finite-Lived Intangible Assets, Net	50,347
Finite-Lived Intangible Asset, Useful Life	20 years
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	16	644
Finite-Lived Intangible Assets, Accumulated Amortization	(2)	(621)
Finite-Lived Intangible Assets, Net	14	23
Affiliate Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		243,600
Finite-Lived Intangible Assets, Accumulated Amortization		(53,971)
Finite-Lived Intangible Assets, Net		$ 189,629
Minimum [Member] \| Affiliate and Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	17 years
Maximum [Member] \| Affiliate and Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	25 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

-Subparagraph (a)(1)

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+ References

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

-Publisher FASB

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-Topic 350

-SubTopic 30

-Section 50

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+ References

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

-Publisher FASB

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-Topic 350

-SubTopic 30

-Section 45

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