v3.26.1
Fair Value of Financial Instruments (Schedule of Fair Value of Investments in and Unfunded Commitments to Funds Measured at Net Asset Value) (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]    
Fair value of investments $ 35,585 $ 35,117
Unfunded commitments 16,223 16,508
Partnership Interests [Member]    
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]    
Fair value of investments 32,197 31,819
Unfunded commitments 16,223 16,508
Money Market Funds [Member]    
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]    
Fair value of investments 2,450 2,340
Mutual Funds [Member]    
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]    
Fair value of investments 647 668
Private Equity Funds [Member]    
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]    
Fair value of investments $ 291 $ 290