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Derivative Instruments - Fair Value of Derivative Instruments and Effect of Derivative Instruments on Statements of Income and Expenses (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Derivative Instruments Gain Loss [Line Items]
Futures Contracts, Realized Gain (Loss)	$ (33,542,099)	$ 12,986,866	$ 91,999,404	$ 31,335,023
Futures Contracts, Unrealized Gain (Loss)	85,256,092	(9,017,234)	46,184,747	(8,085,031)
Commodity Futures Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments Gain Loss [Line Items]
Futures Contracts, Realized Gain (Loss)	(33,542,099)	12,986,866	91,999,404	31,335,023
Futures Contracts, Unrealized Gain (Loss)	85,256,092	(9,017,234)	46,184,747	(8,085,031)
Net Realized and Net Change in Unrealized Gain (Loss)	$ 51,713,993	$ 3,969,632	$ 138,184,151	$ 23,249,992

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of realized and unrealized gain (loss) on investment.

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- Definition

The difference between the book value and the sale price of agreements to purchase or sell mineral resources, energy, and agricultural products at some future point. This element refers to the gain (loss) included in earnings and not to the cash proceeds.

+ References

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open agreements to purchase or sell mineral resources, energy, and agricultural products at some future point held at each balance sheet date, that was included in earnings for the period.

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