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Property, Plant And Equipment, Intangible Assets And Goodwill (Schedule Of Property, Plant And Equipment) (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Property Plant And Equipment [Line Items]    
Property, plant and equipment $ 4,436,096 $ 4,816,477
Less: accumulated depreciation 2,223,540 2,117,413
Property, plant and equipment, net 2,212,556 2,699,064
Land, buildings and improvements [Member]    
Property Plant And Equipment [Line Items]    
Property, plant and equipment 603,234 731,925
Structures [Member]    
Property Plant And Equipment [Line Items]    
Property, plant and equipment 2,824,794 2,999,582
Towers, transmitters and studio equipment [Member]    
Property Plant And Equipment [Line Items]    
Property, plant and equipment 347,877 453,044
Furniture and other equipment [Member]    
Property Plant And Equipment [Line Items]    
Property, plant and equipment 591,149 536,255
Construction in progress [Member]    
Property Plant And Equipment [Line Items]    
Property, plant and equipment $ 69,042 $ 95,671