v3.26.3
INVESTMENTS - Schedule of Other Investments (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Schedule of Investments [Line Items]    
Total other investments $ 5,047,962 $ 4,574,214
Fund investments    
Schedule of Investments [Line Items]    
Total other investments   2,775,499
Private credit funds    
Schedule of Investments [Line Items]    
Total other investments 1,597,821 1,445,158
Private equity funds    
Schedule of Investments [Line Items]    
Total other investments 788,907 701,837
Multi-strategy funds    
Schedule of Investments [Line Items]    
Total other investments 633,225 473,990
Insurance-linked securities funds    
Schedule of Investments [Line Items]    
Total other investments 167,984 154,514
Equity funds    
Schedule of Investments [Line Items]    
Total other investments 79,181 0
Catastrophe bonds    
Schedule of Investments [Line Items]    
Total other investments 1,625,250 1,613,710
Direct private equity investments    
Schedule of Investments [Line Items]    
Total other investments $ 155,594 $ 185,005