Annual report pursuant to Section 13 and 15(d)

Amortizable Intangible Assets - Amortizable Intangible Assets, Estimate Amortization Expense (Detail)

v3.19.1
Amortizable Intangible Assets - Amortizable Intangible Assets, Estimate Amortization Expense (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]    
2019 $ 4,699  
2020 3,275  
2021 1,654  
2022 969  
2023 459  
Thereafter 208  
Net $ 11,264 $ 13,104