Derivative Instruments - Effect of Derivative Instruments on Statements of Income and Expenses (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Futures contracts, realized gain (loss)	$ 7,182,698	$ (29,244,561)	$ 10,140,989	$ (13,340,578)
Futures contracts, unrealized gain (loss)	(1,360,628)	33,630,390	8,159,744	9,305,951
Currency Futures Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Futures contracts, realized gain (loss)	7,182,698	(29,244,561)	10,140,989	(13,340,578)
Futures contracts, unrealized gain (loss)	(1,360,628)	33,630,390	8,159,744	9,305,951
Future Contracts, Net Realized and Unrealized Gain (Loss)	$ 5,822,070	$ 4,385,829	$ 18,300,733	$ (4,034,627)