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Fair Value of Financial Instruments - Assets Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Level 3 [Member] | Collateral Dependent Loans [Member] |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets measured at fair value on a nonrecurring basis, Total | $ 2,988 | $ 22,676
Level 3 [Member] | Loan Servicing Right [Member] |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets measured at fair value on a nonrecurring basis, Total |  | 58
Liability measured at fair value on a nonrecurring basis, Total | (4) |
Fair Value on Nonrecurring Basis [Member] | Collateral Dependent Loans [Member] |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets measured at fair value on a nonrecurring basis, Total | 2,988 | 22,676
Fair Value on Nonrecurring Basis [Member] | Loan Servicing Right [Member] |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets measured at fair value on a nonrecurring basis, Total |  | 58
Liability measured at fair value on a nonrecurring basis, Total | (4) |
Fair Value on Nonrecurring Basis [Member] | Level 3 [Member] | Collateral Dependent Loans [Member] |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets measured at fair value on a nonrecurring basis, Total | 2,988 | 22,676
Fair Value on Nonrecurring Basis [Member] | Level 3 [Member] | Loan Servicing Right [Member] |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets measured at fair value on a nonrecurring basis, Total |  | $ 58
Liability measured at fair value on a nonrecurring basis, Total | $ (4) |

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