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)	$ (1,442,051)	$ 1,213,790	$ (1,735,594)	$ (322,166)
Futures contracts, unrealized gain (loss)	540,819	(2,151,965)	(1,426,317)	(664,133)
Currency Futures Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments Gain Loss [Line Items]
Futures contracts, realized gain (loss)	(1,442,051)	1,213,790	(1,735,594)	(322,166)
Futures contracts, unrealized gain (loss)	540,819	(2,151,965)	(1,426,317)	(664,133)
Future Contracts, Net Realized and Unrealized Gain (Loss)	$ (901,232)	$ (938,175)	$ (3,161,911)	$ (986,299)