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Goodwill and Other Intangibles - Estimated Amortization Expense of Intangible Assets (Detail)
$ in Thousands
Sep. 30, 2021
USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]  
For the three months ending December 31, 2021 $ 1,110
For the year ending December 31, 2022 3,920
For the year ending December 31, 2023 3,323
For the year ending December 31, 2024 2,704
For the year ending December 31, 2025 $ 2,608