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Goodwill and Other Intangible Assets - Estimated Amortization Expense (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Estimated Amortization Expense    
2020 $ 4,351  
2021 3,519  
2022 2,378  
2023 1,506  
2024 1,333  
Thereafter 3,685  
Net Carrying Amount $ 16,772 $ 22,598