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Related Party Transactions - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Related Party Transaction [Line Items]      
Advertising expenses $ 31,800,000 $ 32,300,000 $ 29,700,000
Complex Media Inc.      
Related Party Transaction [Line Items]      
Advertising expenses 0 200,000 100,000
Accounts payable related parties 0 200,000  
Galore Media, Inc.      
Related Party Transaction [Line Items]      
Advertising expenses $ 500,000    
Mark Friedman      
Related Party Transaction [Line Items]      
Consulting agreement termination date May 03, 2016    
Mark Friedman | Maximum      
Related Party Transaction [Line Items]      
Professional Fees $ 100,000 $ 100,000 $ 100,000