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Securities - Contractual Maturities of Debt Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2026 | Dec. 31, 2025
--- | --- | ---
Amortized Cost |  |
Due in one year or less | $ 20,080 |
Due after one year through five years | 30,270 |
Due after five years through ten years | 9,898 |
Due after ten years | 0 |
Available-for-Sale Debt Securities With Fixed Maturities | 60,248 |
Amortized Cost | 1,056,242 | $ 1,021,162
Fair Value |  |
Due in one year or less | 20,031 |
Due after one year through five years | 29,337 |
Due after five years through ten years | 9,842 |
Due after ten years | 0 |
Available-for-Sale Debt Securities With Fixed Maturities | 59,210 |
Total Available-for-Sale Debt Securities, Fair Value | 1,010,459 | 986,277
Collateralized mortgage obligations of U.S. government corporations and agencies |  |
Amortized Cost |  |
Available-for-Sale Debt Securities With Fixed Maturities | 677,097 |
Amortized Cost | 677,097 | 650,314
Fair Value |  |
Available-for-Sale Debt Securities With Fixed Maturities | 641,891 |
Total Available-for-Sale Debt Securities, Fair Value | 641,891 | 624,263
Residential mortgage-backed securities of U.S. government corporations and agencies |  |
Amortized Cost |  |
Available-for-Sale Debt Securities With Fixed Maturities | 36,669 |
Amortized Cost | 36,669 | 35,994
Fair Value |  |
Available-for-Sale Debt Securities With Fixed Maturities | 31,916 |
Total Available-for-Sale Debt Securities, Fair Value | 31,916 | 31,336
Commercial mortgage-backed securities of U.S. government corporations |  |
Amortized Cost |  |
Available-for-Sale Debt Securities With Fixed Maturities | 282,228 |
Amortized Cost | 282,228 | 243,571
Fair Value |  |
Available-for-Sale Debt Securities With Fixed Maturities | 277,442 |
Total Available-for-Sale Debt Securities, Fair Value | $ 277,442 | $ 241,262

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