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Goodwill and Other Intangible Assets - Summary of Estimated Amortization Expense (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]    
2021 $ 106,816  
2022 101,964  
2023 91,133  
2024 87,320  
2025 83,959  
Thereafter 443,254  
Total $ 914,446 $ 992,244