Third-Party Reinsurance - Effects of Reinsurance (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Written premiums: | ||
| Direct | $ 0.0 | $ 10.5 |
| Assumed | 6.7 | 0.0 |
| Gross written premiums | 6.7 | 10.5 |
| Earned premiums: | ||
| Direct | 0.0 | 7.3 |
| Assumed | 8.2 | 0.5 |
| Gross earned premiums | 8.2 | 7.8 |
| Net earned premiums | 395.0 | 319.0 |
| Loss and LAE: | ||
| Net incurred loss and LAE | 261.8 | 185.8 |
| P&C Insurance and Reinsurance (Ark/WM Outrigger) | ||
| Written premiums: | ||
| Direct | 416.8 | 285.0 |
| Assumed | 690.8 | 587.1 |
| Gross written premiums | 1,107.6 | 872.1 |
| Ceded | (379.9) | (274.1) |
| Net written premiums | 727.7 | 598.0 |
| Earned premiums: | ||
| Direct | 246.3 | 194.4 |
| Assumed | 214.1 | 192.4 |
| Gross earned premiums | 460.4 | 386.8 |
| Ceded | (102.4) | (84.0) |
| Net earned premiums | 358.0 | 302.8 |
| Loss and LAE: | ||
| Gross | 323.2 | 253.3 |
| Ceded | (89.7) | (73.3) |
| Net incurred loss and LAE | 233.5 | 180.0 |
| P&C Insurance and Reinsurance (Ark/WM Outrigger) | Ark | ||
| Written premiums: | ||
| Ceded | 37.5 | 34.3 |
| Earned premiums: | ||
| Ceded | (12.0) | (10.3) |
| Loss and LAE: | ||
| Ceded | $ 20.2 | $ 0.7 |
| X | ||||||||||
- Definition Amount of earned premiums assumed from other entities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of written premiums assumed from other entities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of earned premiums ceded to other entities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of written premiums ceded to other entities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums written. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred and costs incurred in the claim settlement process. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before effect of policies assumed or ceded, of expense related to provision for policy benefits and costs incurred. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of direct and assumed premiums written. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums written. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount of reduction of provision for policy benefits and costs incurred for policies ceded. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Gross Premiums Earned No definition available.
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- Definition Losses and Loss Adjustment Expense No definition available.
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- Details
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- Details
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