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Debt - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2025
May 31, 2024
Mar. 31, 2024
Dec. 15, 2020
Line of Credit Facility [Line Items]        
Outstanding balance on credit facility $ 0   $ 0  
Surplus Notes        
Line of Credit Facility [Line Items]        
Principal amount       $ 50,000,000
Interest expense 859,000      
Senior Notes        
Line of Credit Facility [Line Items]        
Principal amount   $ 70,000,000    
Interest expense $ 1,624,000      
Applicable rate   9.00%    
Debt issuance costs, gross   $ 3,050,000    
Federal Home Loan Bank Advances        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity as a percentage of total assets 20.00%      
Maximum borrowing capacity $ 469,700,000