Derivative Instruments - Effect of Derivative Instruments on Statements of Income and Expenses (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Futures contracts, realized gain (loss)	$ (9,975,184)	$ 11,817,365	$ 165,805	$ (1,523,213)
Futures contracts, unrealized gain (loss)	(5,548,181)	3,957,181	2,611,563	13,263,132
Currency Futures Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Futures contracts, realized gain (loss)	(9,975,184)	11,817,365	165,805	(1,523,213)
Futures contracts, unrealized gain (loss)	(5,548,181)	3,957,181	2,611,563	13,263,132
Future Contracts, Net Realized and Unrealized Gain (Loss)	$ (15,523,365)	$ 15,774,546	$ 2,777,368	$ 11,739,919