v3.26.1
INVESTMENTS - Other Investments (Details)
6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
fund
Dec. 31, 2025
USD ($)
fund
Other Investments [Line Items]    
Other investments, at fair value $ 1,062,933,000 $ 1,027,798,000
Percentage of total fair value (as a percent) 100.00% 100.00%
Multi-strategy funds    
Other Investments [Line Items]    
Other investments, at fair value $ 6,963,000 $ 11,577,000
Percentage of total fair value (as a percent) 1.00% 1.00%
Multi-strategy funds | Lockup Redemption Restriction    
Other Investments [Line Items]    
Fair value of other investments subject to redemption restrictions $ 0 $ 0
Multi-strategy funds | Other Redemption Restriction    
Other Investments [Line Items]    
Unfunded commitments related to other investments $ 23,000,000 $ 30,000,000
Investment term 2 years  
Multi-strategy funds | Minimum    
Other Investments [Line Items]    
Redemption notice period 60 days 60 days
Multi-strategy funds | Maximum    
Other Investments [Line Items]    
Redemption notice period 90 days 90 days
Direct lending funds    
Other Investments [Line Items]    
Other investments, at fair value $ 194,209,000 $ 186,747,000
Percentage of total fair value (as a percent) 18.00% 18.00%
Redemption notice period 90 days 90 days
Direct lending funds | Lockup Redemption Restriction    
Other Investments [Line Items]    
Fair value of other investments subject to redemption restrictions $ 23,000,000 $ 18,000,000
Number of funds | fund 2 1
Direct lending funds | Other Redemption Restriction    
Other Investments [Line Items]    
Unfunded commitments related to other investments $ 283,000,000 $ 292,000,000
Optional extension of investment term 3 years  
Direct lending funds | Quarterly Redemption    
Other Investments [Line Items]    
Other investments, at fair value $ 2,000,000 2,000,000
Number of investment funds | fund 1  
Direct lending funds | Minimum | Other Redemption Restriction    
Other Investments [Line Items]    
Investment term 4 years  
Direct lending funds | Maximum | Other Redemption Restriction    
Other Investments [Line Items]    
Investment term 15 years  
Private equity funds    
Other Investments [Line Items]    
Other investments, at fair value $ 400,067,000 $ 364,376,000
Percentage of total fair value (as a percent) 38.00% 36.00%
Private equity funds | Other Redemption Restriction    
Other Investments [Line Items]    
Unfunded commitments related to other investments $ 265,000,000 $ 240,000,000
Investment term 6 years  
Real estate funds    
Other Investments [Line Items]    
Other investments, at fair value $ 278,438,000 $ 291,491,000
Percentage of total fair value (as a percent) 26.00% 28.00%
Real estate funds | Other Redemption Restriction    
Other Investments [Line Items]    
Unfunded commitments related to other investments $ 96,000,000 $ 105,000,000
Investment term 2 years  
Real estate funds | Quarterly Redemption    
Other Investments [Line Items]    
Other investments, at fair value $ 29,000,000 44,000,000
Number of investment funds | fund 1  
Real estate funds | Annual Redemption    
Other Investments [Line Items]    
Other investments, at fair value $ 23,000,000 $ 24,000,000
Number of investment funds | fund 1  
Real estate funds | Minimum    
Other Investments [Line Items]    
Redemption notice period 45 days 45 days
Real estate funds | Maximum    
Other Investments [Line Items]    
Redemption notice period 90 days 90 days
Other privately held investments    
Other Investments [Line Items]    
Other investments, at fair value $ 183,256,000 $ 173,607,000
Percentage of total fair value (as a percent) 17.00% 17.00%
Private company investment funds | Other Redemption Restriction    
Other Investments [Line Items]    
Unfunded commitments related to other investments $ 12,000,000 $ 16,000,000
Number of funds | fund 4  
Private company investment funds | Other Redemption Restriction | Investment Funds, Term, Period One    
Other Investments [Line Items]    
Investment term 5 years  
Number of funds | fund 2  
Private company investment funds | Other Redemption Restriction | Investment Funds, Term, Period Two    
Other Investments [Line Items]    
Investment term 10 years  
Number of funds | fund 1  
Private company investment funds | Other Redemption Restriction | Investment Funds, Term, Period Three    
Other Investments [Line Items]    
Investment term 10 years  
Optional extension of investment term 3 years  
Number of funds | fund 1