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Reserve for Losses and Loss Adjustment Expenses - Narrative (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 USD ($) | Mar. 31, 2024 USD ($) | Dec. 31, 2024 loan
Liability for Catastrophe Claims [Line Items] |  |  |
Incurred claims and claim adjustment expenses | $ 7,145 | $ 4,846 |
Favorable prior year development | 18,210 | 29,483 |
Reserve for losses and LAE, for prior years | $ 266,800 | $ 201,700 |
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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