Derivative Instruments - Effect of Derivative Instruments on Statements of Income and Expenses (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Futures Contracts, Net Realized Gain (Loss)	$ (1,535,956)	$ (1,165,795)
Futures Contracts, Net Unrealized Gain (Loss)	1,487,832	(214,449)
Currency Futures Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Futures Contracts, Net Realized Gain (Loss)	(1,535,956)	(1,165,795)
Futures Contracts, Net Unrealized Gain (Loss)	1,487,832	(214,449)
Future Contracts, Net Realized and Unrealized Gain (Loss)	$ (48,124)	$ (1,380,244)