v3.25.1
Related Party Transactions (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Related Party Transaction [Line Items]      
Commercial mortgage loans, cost $ 836.1   $ 787.4
Unfunded Commitments 217.4   220.9
Accrued underwriting expenses and other liabilities 56.9   $ 54.3
Related Party      
Related Party Transaction [Line Items]      
Purchase of loans 42.0    
Commercial mortgage loans, cost   $ 48.4  
Unfunded Commitments 102.7 40.7  
Investment management fees 3.4 2.3  
Accrued underwriting expenses and other liabilities 2.6    
Related Party | Other Investments      
Related Party Transaction [Line Items]      
Commercial mortgage loans, cost   21.1  
Related Party | Mortgage Loans      
Related Party Transaction [Line Items]      
Commercial mortgage loans, cost   $ 27.3  
Related Party | Mortgage And Private Loans      
Related Party Transaction [Line Items]      
Commercial mortgage loans, cost 446.1    
Related Party | Other Investments      
Related Party Transaction [Line Items]      
Commercial mortgage loans, cost 283.9    
Related Party | Equity securities      
Related Party Transaction [Line Items]      
Commercial mortgage loans, cost $ 294.3