Annual report pursuant to Section 13 and 15(d)

Intangible Assets - Schedule of Future Amortization Related to Intangible Assets (Detail)

v3.10.0.1
Intangible Assets - Schedule of Future Amortization Related to Intangible Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]    
2019 $ 1,390  
2020 1,299  
2021 1,196  
2022 1,142  
2023 983  
Thereafter 3,883  
Net book value $ 9,893 $ 11,578