Property, Plant And Equipment, Intangible Assets And Goodwill (Schedule Of Definite-Lived Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Definite-Lived Intangible Assets
Gross Carrying Amount	$ 3,144,264	$ 3,129,425
Accumulated Amortization	(1,261,359)	(1,111,665)
Transit, Street Furniture and Other Outdoor Contractual Rights [Member]
Definite-Lived Intangible Assets
Gross Carrying Amount	779,418	773,238
Accumulated Amortization	(365,941)	(329,563)
Customer/Advertiser Relationships [Member]
Definite-Lived Intangible Assets
Gross Carrying Amount	1,210,245	1,210,269
Accumulated Amortization	(466,635)	(409,794)
Talent Contracts [Member]
Definite-Lived Intangible Assets
Gross Carrying Amount	349,046	347,489
Accumulated Amortization	(161,833)	(139,154)
Representation Contracts [Member]
Definite-Lived Intangible Assets
Gross Carrying Amount	243,936	237,451
Accumulated Amortization	(154,478)	(137,058)
Other[Member]
Definite-Lived Intangible Assets
Gross Carrying Amount	561,619	560,978
Accumulated Amortization	$ (112,472)	$ (96,096)