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Goodwill and Other Intangible Assets - Summary of Estimated Intangible Assets Amortization Expense (Detail) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Finite Lived Intangible Assets Future Amortization Expense [Abstract]    
2020 (remainder) $ 4,720  
2021 12,380  
2022 11,042  
2023 10,862  
2024 9,751  
Thereafter 34,631  
Total $ 83,386 $ 97,363