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Securities - Fair Value and Amortized Cost of Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Value |  |
Pledge securities for borrowing availability at the Federal Reserve | $ 832,429 | $ 851,384
Pledge securities for FHLB borrowings | 280,180 | 279,136
Amortized Cost |  |
Pledge securities for borrowing availability at the Federal Reserve | 1,026,315 | 1,032,916
Pledge securities for FHLB borrowings | $ 327,837 | $ 333,613

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