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Fixed-Maturity Securities Available-For-Sale - Schedule of Major Categories of Net Investment Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Income: |  |  |  |
Total investment income | $ 19,314 | $ 12,993 | $ 48,594 | $ 35,049
Investment expenses | 221 | 207 | 653 | 549
Total Net investment income | 19,093 | 12,786 | 47,941 | 34,500
Available-for-sale fixed-maturity securities |  |  |  |
Income: |  |  |  |
Total investment income | 5,666 | 5,346 | 16,551 | 13,988
Cash and cash equivalents |  |  |  |
Income: |  |  |  |
Total investment income | 13,542 | 7,513 | 31,704 | 20,629
Other investments |  |  |  |
Income: |  |  |  |
Total investment income | $ 106 | $ 134 | $ 339 | $ 432

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