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Securities - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt securities held-to-maturity fair value | $ 344,223 | $ 339,048
Acquired securities under merger combination | 90,700 |
Sale of securities to pay down wholesale funding | 78,900 |
Net increase from security transaction | $ 11,800 |
US Treasury Securities [Member] | AA or Better [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt Securities, Percent | 100.00% |
US States and Political Subdivisions Debt Securities [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt securities held-to-maturity fair value | $ 170,976 | 165,038
US States and Political Subdivisions Debt Securities [Member] | A Rated [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt Securities, Percent | 10.00% |
US States and Political Subdivisions Debt Securities [Member] | AA or Better [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt Securities, Percent | 85.00% |
US States and Political Subdivisions Debt Securities [Member] | Unrated [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt Securities, Percent | 5.00% |
Collateralized Mortgage-Backed Securities [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt securities held-to-maturity fair value | $ 151,555 | $ 152,367
Collateralized Mortgage-Backed Securities [Member] | AA [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt Securities, Percent | 43.00% |
Collateralized Mortgage-Backed Securities [Member] | AAA [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt Securities, Percent | 44.00% |
Collateralized Mortgage-Backed Securities [Member] | Unrated [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt Securities, Percent | 13.00% |
Reclassified From Available-for-sale Securities [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt securities held-to-maturity fair value | $ 428,400 |
OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI for Amortization of Gain (Loss), after Tax | 2,700 |
OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI Unamortized, After Tax | $ 1,900 |

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