v3.26.1
Investments - Schedule of Investment Funds (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Alternative Investment [Line Items]    
Investment funds, unfunded commitments $ 811,000  
Minimum    
Alternative Investment [Line Items]    
Expected life of non-redeemable funds 7 years  
Extension options term of non-redeemable funds 1 year  
Expected life of redeemable funds 6 months  
Maximum    
Alternative Investment [Line Items]    
Expected life of non-redeemable funds 12 years  
Extension options term of non-redeemable funds 4 years  
Expected life of redeemable funds 36 months  
Commercial mortgage loans    
Alternative Investment [Line Items]    
Investment funds, fair value $ 579,280 $ 614,080
Investment funds, unfunded commitments 512,426  
Opportunistic and private credit    
Alternative Investment [Line Items]    
Investment funds, fair value 209,523 223,665
Investment funds, unfunded commitments 227,688  
Infrastructure    
Alternative Investment [Line Items]    
Investment funds, fair value 194,367 187,964
Investment funds, unfunded commitments 19,372  
Other    
Alternative Investment [Line Items]    
Investment funds, fair value 87,126 84,010
Investment funds, unfunded commitments 51,037  
Investment funds    
Alternative Investment [Line Items]    
Investment funds, fair value 1,070,296 $ 1,109,719
Investment funds, unfunded commitments 810,523  
Unfunded commitments, including past investment period $ 983,000