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Derivatives - Summary of Interest Rate Swap Transactions (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024
Derivatives Fair Value [Line Items] |  |
Fair Value of total before netting adjustments | $ 8,915 | $ 11,638
Fair Value of Netting adjustments - cash collateral posted by counterparties | (6,070) | (6,330)
Total Swap assets | 2,845 | 5,308
Fair Value of total before netting adjustments | 8,915 | 11,638
Total Swap liabilities | 8,915 | 11,638
Long [Member] | Interest Rate Swap [Member] |  |
Derivatives Fair Value [Line Items] |  |
Interest Rate Swaps With Loan Customers In An Asset Position Notional Amount | 83,271 | 68,621
Fair Value Of Interest Rate Swaps With Loan Customers In An Asset Position | 2,125 | 1,169
Short [Member] | Financial Institutions Asset Position [Member] |  |
Derivatives Fair Value [Line Items] |  |
Counterparty Positions With Financial Institutions In An Asset Position Notional Amount | 250,598 | 247,727
Fair Value Of Counterparty Positions With Financial Institutions In An Asset Position | 6,790 | 10,469
Short [Member] | Interest Rate Swap [Member] |  |
Derivatives Fair Value [Line Items] |  |
Interest Rate Swaps With Loan Customers In A Liability Position Notional Amount | 167,327 | 179,106
Fair Value Of Interest Rate Swaps With Loan Customers In A Liability Position | $ 8,915 | $ 11,638

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