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Goodwill and Other Intangible Assets - Estimated Amortization Expense of Servicing Rights (Detail) - Servicing Rights [Member]
$ in Thousands
Dec. 31, 2023
USD ($)
Finite-Lived Intangible Assets [Line Items]  
2024 $ 1,168
2025 1,035
2026 914
2027 806
2028 631
Thereafter $ 4,428