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Derivative Instruments (Fair Value of Fair Value Hedges) (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Fair value hedges, net | $ 100 |
Cumulative adjustment to Interest and dividends on investment securities | 55 | $ 159
Available-for-sale Securities |  |
Derivatives, Fair Value [Line Items] |  |
Fair value hedges, net | (369) | (4,740)
Other Assets |  |
Derivatives, Fair Value [Line Items] |  |
Fair value hedges, net | $ 314 | $ 4,581

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