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Investment Securities (Scheduled Maturities of Securities Available for Sale and Securities Held to Maturity) (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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Investments [Abstract] |  |
Debt securities available for sale, Due in one year or less, Amortized Cost | $ 12 |
Debt securities available for sale, Due from one to five years, Amortized Cost | 43,722 |
Debt securities available for sale, Due after five years through ten years, Amortized Cost | 128,801 |
Debt securities available for sale, Due after ten years, Amortized Cost | 858,309 |
Securities available for sale, Amortized Cost | 1,030,844 | $ 1,037,990
Debt securities available for sale, Due in one year or less, Fair Value | 12 |
Debt securities available for sale, Due from one to five years, Fair Value | 39,958 |
Debt securities available for sale, Due after five years through ten years, Fair Value | 114,101 |
Debt securities available for sale, Due after ten years, Fair Value | 717,564 |
Debt securities available for sale, Fair Value | 871,635 | 887,730
Debt securities held to maturity, Due in one year or less, Amortized Cost | 20,915 |
Debt securities held to maturity, Due from one to five years, Amortized Cost | 19,567 |
Debt securities held to maturity, Due after five years through ten years, Amortized Cost | 28,818 |
Debt securities held to maturity, Due after ten years, Amortized Cost | 58,974 |
Securities held to maturity, Amortized Cost | 128,274 | 148,160
Debt securities held to maturity, Due in one year or less, Fair Value | 20,690 |
Debt securities held to maturity, Due from one to five years, Fair Value | 18,992 |
Debt securities held to maturity, Due after five years through ten years, Fair Value | 25,867 |
Debt securities held to maturity, Due after ten years, Fair Value | 50,300 |
Securities held to maturity, Fair Value | $ 115,849 | $ 137,030

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