v3.26.1
Derivative Instruments - Fair Value of Derivative Instruments (Detail) - Commodity Futures Contract [Member] - Not Designated as Hedging Instrument [Member] - USD ($)
Jun. 30, 2026
Dec. 31, 2025
Derivatives Fair Value [Line Items]    
Assets [1] $ 3,755,743 $ 29,851,162
Liabilities [1] $ (11,121,464)  
[1] Includes cumulative appreciation (depreciation) of commodity futures contracts. Only the current day’s variation margin receivable (payable) is reported in the Statements of Financial Condition, if any.