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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%