Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets, Net - Summary of Future Estimated Annual Amortization Expense (Detail)

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Goodwill and Intangible Assets, Net - Summary of Future Estimated Annual Amortization Expense (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Finite Lived Intangible Assets Future Amortization Expense [Abstract]    
2019 $ 5,054  
2020 5,143  
2021 4,026  
2022 3,887  
2023 2,370  
Net Carrying Amount $ 20,480 $ 3,154