v3.26.1
INVESTMENTS - Schedule of Net Realized and Unrealized Gains (Losses) on Investments (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Gain (Loss) on Securities [Line Items]        
Net realized and unrealized gains (losses) on investments $ 121,628 $ 349,720 $ (300,285) $ 682,660
Fixed maturity investments trading        
Gain (Loss) on Securities [Line Items]        
Fixed maturity investments trading (119,520) 94,579 (356,644) 330,854
Fixed maturity investments trading | Derivative instruments not designated as hedges        
Gain (Loss) on Securities [Line Items]        
Net realized and unrealized gains (losses) on investment-related derivatives 4,200 54,900 (26,600) 131,500
Investment-related derivatives        
Gain (Loss) on Securities [Line Items]        
Net realized and unrealized gains (losses) on investment-related derivatives 128,243 175,431 82,385 317,077
Equity investments        
Gain (Loss) on Securities [Line Items]        
Equity investments 14,097 23,871 (52,985) 26,829
Equity investments | Derivative instruments not designated as hedges        
Gain (Loss) on Securities [Line Items]        
Net realized and unrealized gains (losses) on investment-related derivatives 203,200 87,200 122,900 34,700
Catastrophe bonds        
Gain (Loss) on Securities [Line Items]        
Net realized and unrealized gains (losses) on other investments (1,125) (14,016) (12,954) (54,429)
Fund and direct private equity investments        
Gain (Loss) on Securities [Line Items]        
Net realized and unrealized gains (losses) on other investments 99,933 69,855 39,913 62,329
Commodity | Derivative instruments not designated as hedges        
Gain (Loss) on Securities [Line Items]        
Net realized and unrealized gains (losses) on investment-related derivatives $ (79,100) $ 33,300 $ (13,800) $ 150,800