Trading Activities - Trading Gains and Losses by Market Sector on Derivative Instruments Traded (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Derivative [Line Items]
Total trading results	$ 1,217,598	$ 563,700	$ 4,055,671	$ (466,956)
Currencies [Member]
Derivative [Line Items]
Total trading results	1,797,151	(175,565)	1,368,372	(783,975)
Energy [Member]
Derivative [Line Items]
Total trading results	(427,168)	(715,822)	2,417,044	(1,216,059)
Grains [Member]
Derivative [Line Items]
Total trading results	(132,832)	633,766	(1,220,640)	555,724
Indices [Member]
Derivative [Line Items]
Total trading results	469,389	633,511	1,233,738	199,091
Interest Rates U.S. [Member]
Derivative [Line Items]
Total trading results	41,484	(352,742)	269,196	(462,400)
Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Total trading results	(150,305)	129,650	3,770	302,026
Livestock [Member]
Derivative [Line Items]
Total trading results	277,703	130,688	337,401	208,678
Metals [Member]
Derivative [Line Items]
Total trading results	(406,985)	23,965	19,290	806,310
Softs [Member]
Derivative [Line Items]
Total trading results	$ (250,839)	$ 256,249	$ (372,500)	$ (76,351)