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Fixed-Maturity Securities Available-For-Sale - Schedule of Amortized Cost and Estimated Fair Value of Investments in Fixed-Maturity Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Debt Securities, Available-for-Sale [Abstract] |  |
In One year or less Amortized Cost | $ 41,456 | $ 56,574
After one year through five years Amortized Cost | 273,751 | 286,584
After five years through 10 years Amortized Cost | 122,082 | 112,702
After 10 years Amortized Cost | 28,165 | 8,725
Total Amortized Cost | 465,454 | 464,585
In one year or less Fair Value | 41,609 | 56,666
After one year through five years Fair Value | 279,568 | 287,703
After five years through 10 years Fair Value | 125,209 | 112,117
After 10 years Fair Value | 28,217 | 8,480
Total Estimated Fair Value | $ 474,603 | $ 464,966

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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 + Details
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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 + Details
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