v3.26.1
INVESTMENTS - Effect of Loan Modifications (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Transitional real estate loans | Other-than-insignificant payment delays        
Financing Receivable, Modified [Line Items]        
Loan modification, amortized cost [1] $ 107.0   $ 107.0  
Loan modification, percent of total amortized cost 3.50%   3.50%  
Loan modification, deferral period 3 months   3 months  
Transitional real estate loans | Term extension and interest rate reduction        
Financing Receivable, Modified [Line Items]        
Loan modification, amortized cost [1] $ 149.0 $ 152.0 $ 149.0 $ 152.0
Loan modification, percent of total amortized cost 4.90% 3.70% 4.90% 3.70%
Loan modification, term extension 24 months 26 months 24 months 26 months
Weighted-average interest rate before modification, duration 6.60% 4.80% 6.60% 4.80%
Weighted-average interest rate after modification, duration 2.20% 4.30% 2.20% 4.30%
Transitional real estate loans | Term extension        
Financing Receivable, Modified [Line Items]        
Loan modification, amortized cost [1]   $ 128.0   $ 159.0
Loan modification, percent of total amortized cost   3.10%   3.90%
Loan modification, term extension   22 months   20 months
Middle market loans | Other-than-insignificant payment delays        
Financing Receivable, Modified [Line Items]        
Loan modification, amortized cost [1]       $ 28.0
Loan modification, percent of total amortized cost       0.70%
Loan modification, deferral period   35 months   35 months
Middle market loans | Term extension        
Financing Receivable, Modified [Line Items]        
Loan modification, amortized cost [1] $ 27.0   $ 27.0 $ 33.0
Loan modification, percent of total amortized cost 0.60%   0.60% 0.80%
Loan modification, term extension 6 months   6 months 6 months
Middle market loans | Principal forgiveness        
Financing Receivable, Modified [Line Items]        
Loan modification, amortized cost [1]   $ 4.0   $ 6.0
Loan modification, percent of total amortized cost   0.10%   0.10%
Loan modification, principal forgiven   $ 0.3   $ 4.0
Middle market loans | Principal forgiveness and term extension        
Financing Receivable, Modified [Line Items]        
Loan modification, amortized cost [1]   $ 25.0 $ 6.0 $ 25.0
Loan modification, percent of total amortized cost   0.60% 0.10% 0.60%
Loan modification, term extension   30 months 13 months 30 months
Loan modification, principal forgiven   $ 34.0 $ 11.0 $ 34.0
[1] Net of allowance for credit losses