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Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($)
Sep. 30, 2024
Dec. 31, 2023
Investments in Securities, cost $ 750,582,175 $ 710,204,874
US Treasury Bill Securities [Member]    
Investments in Securities, cost 297,391,008 342,604,310
Affiliated Investments [Member]    
Affiliated Investments, at Cost $ 453,191,167 $ 367,600,564