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Reserve for Losses and Loss Adjustment Expenses - Narrative (Details) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2024 loan
Liability for Catastrophe Claims [Line Items] |  |  |
Incurred claims and claim adjustment expenses | $ 35,376 | $ 17,062 |
Favorable prior year development | 66,183 | 83,935 |
Reserve for losses and LAE, for prior years | $ 190,600 | $ 135,000 |
Hurricane |  |  |
Liability for Catastrophe Claims [Line Items] |  |  |
Number of loans increased in default | loan |  |  | 2,119
Wildfire | Reinsurance Risk In Force Affected | Reinsurer Concentration Risk |  |  |
Liability for Catastrophe Claims [Line Items] |  |  |
Concentration risk, percentage | 0.10% |  |

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- Definition Liability, as of the balance sheet date, for amounts representing estimated cost of settling unpaid claims for prior years under the terms of the underlying insurance policies, less estimated reinsurance recoveries on such claims. This includes an estimate for claims which have been incurred but not reported. Claim adjustment expenses represent the costs estimated to be incurred in the settlement of unpaid claims. + References No definition available. + Details
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