Derivative Instruments - Effect of Derivative Instruments on Statements of Income and Expenses (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Futures Contracts, Net Realized Gain (Loss)	$ (2,081,894)	$ (3,633,785)	$ (2,404,060)	$ (6,987,589)
Futures Contracts, Net Unrealized Gain (Loss)	(511,682)	(876,505)	(1,175,815)	(1,786,319)
Currency Futures Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Futures Contracts, Net Realized Gain (Loss)	(2,081,894)	(3,633,785)	(2,404,060)	(6,987,589)
Futures Contracts, Net Unrealized Gain (Loss)	(511,682)	(876,505)	(1,175,815)	(1,786,319)
Future Contracts, Net Realized and Unrealized Gain (Loss)	$ (2,593,576)	$ (4,510,290)	$ (3,579,875)	$ (8,773,908)