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Goodwill, Trade Names, and Other Intangible Assets - Estimated Annual Amortization Expense (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]    
2017 $ 4,248  
2018 4,148  
2019 4,111  
2020 4,007  
2021 3,799  
Thereafter 16,522  
Intangible assets subject to amortization, net carrying amount $ 36,835 $ 46,813