Trading Activities - Summary of Gross and Net Amounts Recognized Relating to Assets and Liabilities of Partnership's Derivatives (Detail) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Derivative [Line Items]
Gross Amounts Recognized, Assets	$ 3,458,314	$ 5,000,081
Gross Amounts Offset in the Statements of Financial Condition, Assets	(2,004,367)	(3,556,814)
Amounts Presented in the Statements of Financial Condition, Assets	1,453,947	1,443,267
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	1,453,947	1,443,267
Gross Amounts Recognized, Liabilities	(2,004,367)	(3,556,814)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	2,004,367	3,556,814
Amounts Presented in the Statements of Financial Condition, Liabilities	0	0
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	0
Net Amount, Liabilities	0	0
Net fair value	1,453,947	1,443,267
Futures Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	2,404,371	3,831,162
Gross Amounts Offset in the Statements of Financial Condition, Assets	(1,273,030)	(2,431,726)
Amounts Presented in the Statements of Financial Condition, Assets	1,131,341	1,399,436
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	1,131,341	1,399,436
Gross Amounts Recognized, Liabilities	(1,273,030)	(2,431,726)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	1,273,030	2,431,726
Amounts Presented in the Statements of Financial Condition, Liabilities	0	0
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	0
Net Amount, Liabilities	0	0
Forward Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	1,053,943	1,168,919
Gross Amounts Offset in the Statements of Financial Condition, Assets	(731,337)	(1,125,088)
Amounts Presented in the Statements of Financial Condition, Assets	322,606	43,831
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	322,606	43,831
Gross Amounts Recognized, Liabilities	(731,337)	(1,125,088)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	731,337	1,125,088
Amounts Presented in the Statements of Financial Condition, Liabilities	0	0
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	0
Net Amount, Liabilities	$ 0	$ 0