v3.25.4
INVESTMENTS - Schedule of Fair Value of Fixed Maturity Investments Trading (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]    
Fixed maturity investments trading $ 24,884,323 $ 23,562,514
U.S. treasuries    
Schedule of Investments [Line Items]    
Fixed maturity investments trading 10,641,503 11,001,893
Corporate    
Schedule of Investments [Line Items]    
Fixed maturity investments trading 8,528,828 7,862,423
Residential mortgage-backed    
Schedule of Investments [Line Items]    
Fixed maturity investments trading 2,606,882 1,707,056
Asset-backed    
Schedule of Investments [Line Items]    
Fixed maturity investments trading 1,606,790 1,422,393
Non-U.S. government    
Schedule of Investments [Line Items]    
Fixed maturity investments trading 691,912 618,809
Agencies    
Schedule of Investments [Line Items]    
Fixed maturity investments trading 486,817 623,489
Commercial mortgage-backed    
Schedule of Investments [Line Items]    
Fixed maturity investments trading $ 321,591 $ 326,451