Derivative Instruments - Effect of Derivative Instruments on Statements of Income and Expenses (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Futures Contracts, Net Realized Gain (Loss)	$ (1,410,333)	$ (2,866,909)	$ (4,376,609)
Futures Contracts, Net Unrealized Gain (Loss)	526,671	168,179	(627,489)
Currency Futures Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Futures Contracts, Net Realized Gain (Loss)	(1,410,333)	(2,866,909)	(4,376,609)
Futures Contracts, Net Unrealized Gain (Loss)	526,671	168,179	(627,489)
Future Contracts, Net Realized and Unrealized Gain (Loss)	$ (883,662)	$ (2,698,730)	$ (5,004,098)