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Securities - Schedule of Available-for-Sales Securities Amortized Cost and Estimated Fair Value (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Amortized Cost |  |
Total | $ 648,823 | $ 679,203
Mortgage-backed securities | 815,142 | 869,279
Amortized Cost | 1,463,965 | 1,548,482
Fair Value |  |
Total | 613,406 | 650,580
Mortgage-backed securities | 704,052 | 766,070
Fair Value | 1,317,458 | 1,416,650
Available-for-sale securities |  |
Amortized Cost |  |
Due in one year or less | 145,289 | 99,242
Due after one year through five years | 246,804 | 307,093
Due after five years through ten years | 234,401 | 245,617
Due after ten years | 22,329 | 27,251
Fair Value |  |
Due in one year or less | 143,154 | 98,650
Due after one year through five years | 234,188 | 296,279
Due after five years through ten years | 218,769 | 233,569
Due after ten years | $ 17,295 | $ 22,082

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