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Goodwill and Other Intangible Assets - Estimated Amortization Expenses (Detail)
$ in Thousands
Sep. 30, 2020
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Remaining 2020 $ 12,859
2021 48,703
2022 42,899
2023 37,704
2024 $ 29,156