v3.25.1
Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($)
Mar. 31, 2025
Dec. 31, 2024
Investments in Securities, cost $ 1,196,562,998 $ 1,269,134,948
US Treasury Bill Securities [Member]    
Investments in Securities, cost 397,161,014 392,834,605
Affiliated Investments [Member]    
Affiliated Investments, at Cost $ 799,401,984 $ 876,300,343