Derivative Instruments - Effect of Derivative Instruments on Statements of Income and Expenses (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Futures contracts, realized gain (loss)	$ 2,958,291	$ 15,903,983
Futures contracts, unrealized gain (loss)	9,520,372	(24,324,439)
Currency Futures Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Futures contracts, realized gain (loss)	2,958,291	15,903,983
Futures contracts, unrealized gain (loss)	9,520,372	(24,324,439)
Future Contracts, Net Realized and Unrealized Gain (Loss)	$ 12,478,663	$ (8,420,456)