Annual report pursuant to Section 13 and 15(d)

Estimated Aggregate Future Amortization Expense for Intangible Assets (Detail)

v3.10.0.1
Estimated Aggregate Future Amortization Expense for Intangible Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Finite Lived Intangible Assets Net [Abstract]      
For the year ended December 31, 2019 $ 4,785    
For the year ended December 31, 2020 5,053    
For the year ended December 31, 2021 2,904    
For the year ended December 31, 2022 2,812    
For the year ended December 31, 2023 3,161    
Thereafter 11,938    
Total $ 30,653 $ 37,026 $ 35,190