Property, Plant And Equipment, Intangible Assets And Goodwill (Schedule Of Definite-Lived Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Definite-Lived Intangible Assets
Gross Carrying Amount	$ 3,138,652	$ 3,129,425
Accumulated Amortization	(1,326,976)	(1,111,665)
Transit, street furniture and other outdoor contractual rights [Member]
Definite-Lived Intangible Assets
Gross Carrying Amount	778,942	773,238
Accumulated Amortization	(381,466)	(329,563)
Customer/advertiser relationships [Member]
Definite-Lived Intangible Assets
Gross Carrying Amount	1,210,245	1,210,269
Accumulated Amortization	(496,416)	(409,794)
Talent contracts [Member]
Definite-Lived Intangible Assets
Gross Carrying Amount	344,255	347,489
Accumulated Amortization	(167,362)	(139,154)
Representation contracts [Member]
Definite-Lived Intangible Assets
Gross Carrying Amount	243,993	237,451
Accumulated Amortization	(162,805)	(137,058)
Other[Member]
Definite-Lived Intangible Assets
Gross Carrying Amount	561,217	560,978
Accumulated Amortization	$ (118,927)	$ (96,096)