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, realized gain (loss)	$ 15,903,983	$ 22,793,178
Futures contracts, unrealized gain (loss)	(24,324,439)	2,185,127
Currency Futures Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Futures contracts, realized gain (loss)	15,903,983	22,793,178
Futures contracts, unrealized gain (loss)	(24,324,439)	2,185,127
Future Contracts, Net Realized and Unrealized Gain (Loss)	$ (8,420,456)	$ 24,978,305