Allowance for Credit Losses - Schedule of Reinsurance Recoverables (Details) - USD ($) $ in Millions |
Mar. 31, 2025 |
Dec. 31, 2024 |
Mar. 31, 2024 |
Dec. 31, 2023 |
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| Credit Loss [Abstract] | ||||
| Reinsurance recoverables, net | $ 2,936.1 | $ 3,053.2 | $ 2,933.1 | $ 2,959.3 |
| Allowance for Estimated Uncollectible Reinsurance | $ 5.8 | $ 5.8 | $ 0.0 | $ 0.0 |
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- References No definition available.
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- Definition Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of allowance for credit loss on reinsurance recoverable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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