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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
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Derivative [Line Items] |  |
Gain (loss) included in interest expense on deposits | $ 38,198 | $ 19,906
Gain (loss) included in interest expense on FHLB borrowings | 5,950 | 3,141
Gain (loss) included in interest expense on other borrowings | 3,131 | 2,418
Total interest expense | 49,410 | 27,495
Gain (loss) included in interest income on tax-exempt investment securities | 11,088 | 13,916
Other noninterest income | 1,059 | 1,398
Interest Rate Swap | Derivatives designated as non-hedging instruments |  |
Derivative [Line Items] |  |
Other noninterest income | 0 | 160
Interest Rate Swap | Cash Flow Hedging | Derivatives designated as hedging instruments |  |
Derivative [Line Items] |  |
Gain (loss) included in interest expense on deposits | 4,111 | 3,071
Gain (loss) included in interest expense on FHLB borrowings | 2,531 | 1,901
Gain (loss) included in interest expense on other borrowings | 0 | 136
Total interest expense | 6,642 | 5,108
Interest Rate Swap | Fair Value Hedging | Derivatives designated as hedging instruments |  |
Derivative [Line Items] |  |
Gain (loss) included in interest income on tax-exempt investment securities | $ 2,622 | $ 2,450

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