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Mortgage Servicing Rights - Summary of Estimated Future Amortization Expense for Mortgage Servicing Rights (Detail)
$ in Thousands
Sep. 30, 2023
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2023 $ 53
2024 203
2025 186
2026 181
2027 146
Thereafter 982
Total $ 1,751