Investments - Net Investment Income (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Investments, Debt and Equity Securities [Abstract] | ||||
| Investment income | $ 8.1 | $ 7.4 | $ 21.7 | $ 19.2 |
| Investment expenses | (0.1) | (0.1) | (0.4) | (0.4) |
| Net investment income | $ 8.0 | $ 7.3 | $ 21.3 | $ 18.8 |
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- Definition Amount of expenses related to the generation of investment income. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The aggregate amount of income from investments (for example, dividends) not considered a component of the entity's core operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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