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Derivative Financial Instruments and Hedging Activities - Derivative Included In The Consolidated Statements Of Income Related To Interest Rate Swap Agreements (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Derivative [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | $ 1,866 | $ 5,782 | $ 4,439 | $ 12,424
Derivatives designated as hedging instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | 1,866 | 5,782 | 4,439 | 12,424
Interest Rate Swap | Gain (loss) included in interest expense on deposits | Derivatives designated as hedging instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | 1,149 | 3,738 | 2,650 | 7,849
Interest Rate Swap | Gain (loss) included in interest expense on FHLB borrowings | Derivatives designated as hedging instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | 717 | 2,044 | 1,789 | 4,575
Interest Rate Swap | Gain (loss) included in interest income on tax-exempt investment securities | Derivatives designated as hedging instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | 1,076 | 2,481 | 2,126 | 5,103
Interest Rate Swap | Gain (loss) included in interest income on MBS | Derivatives designated as hedging instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | 318 | 266 | 573 | 266
Interest Rate Swap | Gain (loss) included in interest income on loans | Derivatives designated as hedging instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | 274 | 87 | 546 | 87
Interest Rate Swap | Other noninterest income | Derivatives designated as non-hedging instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | $ 732 | $ 53 | $ 825 | $ 53

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