v3.26.1
Investments - Narrative (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2026
USD ($)
issuer
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
Apr. 10, 2025
USD ($)
Gain (Loss) on Securities [Line Items]        
Bank loan participations, at fair value $ 153,336   $ 155,138  
Unpaid principal balance 163,400      
Net gain (loss) in bank loan participations (4,897) $ (2,314)    
Unrealized losses 256      
Investments 1,728,038   1,697,156  
Investment Income 1,815 200    
Bank Loan Participations        
Gain (Loss) on Securities [Line Items]        
Net investment income 3,000 $ 3,200    
Sixth Street        
Gain (Loss) on Securities [Line Items]        
Investments       $ 825
Investment collateralized notes receivable       $ 10,900
Investment Income 204      
Commitment to invest in notes receivable $ 63,100      
Total fixed maturity securities, available-for-sale        
Gain (Loss) on Securities [Line Items]        
Number of issuers | issuer 461      
Fixed maturity securities, fair value $ 1,012,948   781,457  
Gross unrealized losses $ 61,050   $ 54,055  
Total fixed maturity securities, available-for-sale | Standard & Poor's, BBB- or Better Rating [Member]        
Gain (Loss) on Securities [Line Items]        
Percentage of available for sale securities 100.00%