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Goodwill and Other Intangible Assets - Estimated Amortization Expense for Identifiable Intangibles Assets (Detail)
$ in Thousands
Dec. 31, 2020
USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]  
For year ended 12/31/21 $ 2,998
For year ended 12/31/22 2,374
For year ended 12/31/23 2,346
For year ended 12/31/24 2,061
For year ended 12/31/25 $ 1,620