v3.26.3
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
Sep. 30, 2026
Dec. 31, 2025
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]    
Fair value of investments $ 42,116 $ 35,117
Unfunded commitments 20,349 16,508
Partnership Interests [Member]    
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]    
Fair value of investments 37,944 31,819
Unfunded commitments 20,349 16,508
Money Market Funds [Member]    
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]    
Fair value of investments 3,146 2,340
Mutual Funds [Member]    
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]    
Fair value of investments 734 668
Private Equity Funds [Member]    
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]    
Fair value of investments $ 292 $ 290