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Investments - Additional Information (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024 | Sep. 30, 2024
--- | --- | --- | ---
Schedule of Investments [Line Items] |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss | $ 0 | $ 0 | $ 0
Securities fair value | 32,587 | 22,861 |
Debt Securities, Available-for-sale, Unrealized Loss Position | 61,582 | 119,024 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 2,687 | 5,351 |
Debt Securities, Available for sale, Unrealized Loss Position, Accumulated Loss, Including Pledged Securities | $ 61,582 |  |
Average Percentage of Unrealized Loss Versus Amortized Cost for Investment Grade Securities | 6.00% |  |
Fiduciary Funds Held by Insurance Distribution Subsidiaries | $ 3,916 | 2,845 |
Fixed Income Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
Debt Securities, Available-for-sale, Unrealized Loss Position | 61,582 | 119,024 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 2,687 | 5,351 |
Fixed Income Securities [Member] | Corporate Debt Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
Debt Securities, Available-for-sale, Unrealized Loss Position | 36,124 | 70,396 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 2,180 | 3,905 |
Fixed Income Securities [Member] | Corporate Debt Securities [Member] | External Credit Rating, Investment Grade |  |  |
Schedule of Investments [Line Items] |  |  |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 2,180 |  |
Fixed Income Securities [Member] | Residential Mortgage-Backed Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
Debt Securities, Available-for-sale, Unrealized Loss Position | 1,722 | 2,446 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 14 | 29 |
Fixed Income Securities [Member] | Asset-backed Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
Debt Securities, Available-for-sale, Unrealized Loss Position | 0 | 1,428 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | $ 0 | $ 2 |

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