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Derivative Instruments - Fair Value of Derivative Instruments (Detail) - Commodity Futures Contract [Member] - Not Designated as Hedging Instrument [Member] - USD ($)
Sep. 30, 2024
Dec. 31, 2023
Derivatives, Fair Value [Line Items]    
Assets $ 51,783,948 $ 15,443,843
Liabilities $ (22,898,448) $ (32,743,090)