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 $ 24,251,692 $ 13,033,497
Liabilities $ (36,701,935) $ (23,862,639)