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Investment Securities - Trading (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract] |  |  |  |  |
Trading securities portfolio | $ 892 |  | $ 892 |  | $ 747
Debt securities, trading, realized gains | $ 41 | $ 26 | $ 100 | $ 100 |

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