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Goodwill and Intangible Assets - Summary of Amortization expenses (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]    
2017 $ 18,215  
2018 14,583  
2019 14,215  
2020 12,517  
2021 12,422  
Thereafter 35,610  
Net carrying Amount $ 107,562 $ 127,319