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Intangible Assets - Expected Amortization of Intangible Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Intangible Assets, Net (Excluding Goodwill) [Abstract]      
December 31, 2017 $ 8,782    
December 31, 2018 7,306    
December 31, 2019 6,207    
December 31, 2020 5,875    
December 31, 2021 2,575    
Thereafter 14,734    
Subject to amortization 45,479    
Trademarks 1,070    
Total intangible assets $ 46,549 $ 37,970 $ 12,819