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Goodwill and Other Intangible Assets - Estimated Amortization Expense of Servicing Rights (Detail)
$ in Thousands
Dec. 31, 2019
USD ($)
Finite-Lived Intangible Assets [Line Items]  
2020 $ 1,200
2021 923
2022 666
2023 409
2024 267
Thereafter 193
Servicing Rights [Member]  
Finite-Lived Intangible Assets [Line Items]  
2020 1,173
2021 979
2022 814
2023 674
2024 557
Thereafter $ 2,429