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Property, Plant And Equipment, Intangible Assets And Goodwill (Schedule Of Definite-Lived Intangible Assets) (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Finite Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 2,968,148 $ 3,056,369
Accumulated Amortization (2,014,488) (1,849,642)
Transit, street furniture and other outdoor contractual rights [Member]    
Finite Lived Intangible Assets [Line Items]    
Gross Carrying Amount 635,772 716,723
Accumulated Amortization (457,060) (476,523)
Customer/advertiser relationships [Member]    
Finite Lived Intangible Assets [Line Items]    
Gross Carrying Amount 1,222,518 1,222,518
Accumulated Amortization (891,488) (765,596)
Talent contracts [Member]    
Finite Lived Intangible Assets [Line Items]    
Gross Carrying Amount 319,384 319,384
Accumulated Amortization (252,526) (223,936)
Representation contracts [Member]    
Finite Lived Intangible Assets [Line Items]    
Gross Carrying Amount 239,142 238,313
Accumulated Amortization (217,770) (206,338)
Permanent easements [Member]    
Finite Lived Intangible Assets [Line Items]    
Gross Carrying Amount 156,349 171,271
Accumulated Amortization 0 0
Other [Member]    
Finite Lived Intangible Assets [Line Items]    
Gross Carrying Amount 394,983 388,160
Accumulated Amortization $ (195,644) $ (177,249)