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Contingencies - Narrative (Details)
 9 Months Ended
May 06, 2024
shares
Sep. 30, 2025
USD ($)
Oct. 27, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
May 05, 2024
USD ($)
VISA Class A Stock          
Summary of Investment Holdings [Line Items]          
Current conversion ratio   1.5223      
VISA Class A Stock | Subsequent Event          
Summary of Investment Holdings [Line Items]          
Closing price (in dollars per share) | $ / shares     $ 347.82    
VISA Class B-1 | Subsequent Event          
Summary of Investment Holdings [Line Items]          
Current value of shares owned | $     $ 3,300,000    
Visa Class B-2 | Subsequent Event          
Summary of Investment Holdings [Line Items]          
Number of shares owned (in shares)     6,283    
Visa | Common Stock, Class B-1          
Summary of Investment Holdings [Line Items]          
Number of shares owned (in shares) 12,566        
Investments | $         $ 0
Visa | Common Stock, Class C          
Summary of Investment Holdings [Line Items]          
Exchange offer, shares received (in shares) 2,493        
Exchange offer, conversion ratio, non-affiliated holder (in shares) 4        
Visa | Visa Class B-2          
Summary of Investment Holdings [Line Items]          
Number of shares owned (in shares) 6,283        
Investments | $   $ 0   $ 0