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Goodwill and Other Intangible Assets - Estimated Amortization Expense in Future Years (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]    
2020 $ 14,869  
2021 10,167  
2022 3,998  
Net Carrying Amount $ 29,034 $ 47,067