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Property, Plant and Equipment - Summary of Major Categories of Property, Plant and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Land [Member]
Dec. 31, 2012
Land [Member]
Dec. 31, 2013
Land [Member]
Minimum [Member]
Dec. 31, 2013
Land [Member]
Maximum [Member]
Dec. 31, 2013
Building and improvements [Member]
Dec. 31, 2012
Building and improvements [Member]
Dec. 31, 2013
Building and improvements [Member]
Minimum [Member]
Dec. 31, 2013
Building and improvements [Member]
Maximum [Member]
Dec. 31, 2013
Advertising structures [Member]
Dec. 31, 2012
Advertising structures [Member]
Dec. 31, 2013
Advertising structures [Member]
Minimum [Member]
Dec. 31, 2013
Advertising structures [Member]
Maximum [Member]
Dec. 31, 2013
Automotive and other equipment [Member]
Dec. 31, 2012
Automotive and other equipment [Member]
Dec. 31, 2013
Automotive and other equipment [Member]
Minimum [Member]
Dec. 31, 2013
Automotive and other equipment [Member]
Maximum [Member]
Property, Plant and Equipment [Line Items]                                    
Property plant and equipment, Estimated life                   10 years 39 years     5 years 15 years     3 years 7 years
Property, plant and equipment $ 3,036,456 $ 2,940,449 $ 312,883 $ 317,223     $ 125,724 $ 115,646     $ 2,459,313 $ 2,378,940     $ 138,424 $ 128,640