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SECURITIES - Amortized Cost and Fair Value By Contractual Maturity, Held-to-maturity (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Held-to-maturity, Amortized Cost |  |
One to five years | $ 19,795 |
Five to ten years | 78,871 |
Pass-through MBS issued by GSEs and agency CMO | 490,665 |
Total Amortized Cost | 589,331 |
Held-to-maturity, Fair Value |  |
One to five years | 18,292 |
Five to ten years | 66,953 |
Pass-through MBS issued by GSEs and agency CMO | 419,473 |
Total Fair Value | $ 504,718 | $ 516,930

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