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DEBT SECURITIES - Schedule of Maturity of Debt Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Amortized Cost |  |
Due in one year or less | $ 13,055 |
Due after one year through five years | 59,849 |
Due after five years through ten years | 373,230 |
Due after ten years | 1,805,597 |
Amortized Cost | 2,251,731 | $ 2,039,952
Fair Value |  |
Due in one year or less | 12,989 |
Due after one year through five years | 57,288 |
Due after five years through ten years | 359,557 |
Due after ten years | 1,669,425 |
Fair Value | 2,099,259 | 1,810,221
Amortized Cost |  |
Due in one year or less | 31,564 |
Due after one year through five years | 38,433 |
Due after five years through ten years | 14,719 |
Due after ten years | 700,105 |
Amortized Cost | 784,821 | 826,630
Fair Value |  |
Due in one year or less | 31,320 |
Due after one year through five years | 36,972 |
Due after five years through ten years | 13,268 |
Due after ten years | 577,911 |
Fair Value | $ 659,471 | $ 675,053

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