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Acquisitions - Additional Information (Detail)
$ in Thousands
3 Months Ended
Mar. 31, 2016
USD ($)
Markets
Mar. 31, 2015
USD ($)
Business Acquisition [Line Items]    
Total purchase price of outdoor advertising assets $ 511,138  
Total purchase price of outdoor advertising assets paid in cash 502,138 $ 19,647
Non cash consideration of outdoor advertising assets 9,000  
Gain on exchange of outdoor advertising assets 8,599  
Clear Channel Outdoor Holdings, Inc [Member]    
Business Acquisition [Line Items]    
Total purchase price of outdoor advertising assets $ 458,500  
Number of business acquired | Markets 5