v3.26.3
Investments - Schedule of Alternative Investment Portfolio by Strategy and the Remaining Commitment Amount and Maximum Exposure to Loss Associated With Each Strategy (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Other Investment Portfolio By Strategy And Remaining Commitment Amount and Maximum Exposure to Loss Associated With Each Strategy [Line Items]    
Carrying Value $ 505,237 $ 418,525
Total alternative investments    
Other Investment Portfolio By Strategy And Remaining Commitment Amount and Maximum Exposure to Loss Associated With Each Strategy [Line Items]    
Carrying Value 505,237 418,525
Remaining Commitment 364,541 376,299
Maximum Exposure to Loss 869,778 794,824
Private equity    
Other Investment Portfolio By Strategy And Remaining Commitment Amount and Maximum Exposure to Loss Associated With Each Strategy [Line Items]    
Carrying Value 410,628 335,415
Remaining Commitment 222,436 194,275
Maximum Exposure to Loss 633,064 529,690
Private credit    
Other Investment Portfolio By Strategy And Remaining Commitment Amount and Maximum Exposure to Loss Associated With Each Strategy [Line Items]    
Carrying Value 45,349 37,029
Remaining Commitment 89,378 133,639
Maximum Exposure to Loss 134,727 170,668
Real assets    
Other Investment Portfolio By Strategy And Remaining Commitment Amount and Maximum Exposure to Loss Associated With Each Strategy [Line Items]    
Carrying Value 49,260 46,081
Remaining Commitment 52,727 48,385
Maximum Exposure to Loss $ 101,987 $ 94,466