Derivative Instruments - Offsetting of Derivative Liabilities (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Offsetting of Derivative Liabilities
Gross Amount of Recognized Liabilities	$ 8,984,447	$ 4,581,389
Gross Amounts Offset in the Consolidated Statement of Financial Condition	(8,984,447)	(4,581,389)
Net Amount of Unrealized Gain Presented in the Consolidated Statement of Financial Condition	4,260,744
Futures Contracts
Offsetting of Derivative Liabilities
Gross Amount of Recognized Liabilities	6,551,336	2,886,203
Gross Amounts Offset in the Consolidated Statement of Financial Condition	(6,551,336)	(2,886,203)
Net Amount of Unrealized Gain Presented in the Consolidated Statement of Financial Condition	3,675,458
Forward Contracts
Offsetting of Derivative Liabilities
Gross Amount of Recognized Liabilities	500,912	555,922
Gross Amounts Offset in the Consolidated Statement of Financial Condition	(500,912)	(555,922)
Swap Contracts
Offsetting of Derivative Liabilities
Gross Amount of Recognized Liabilities	1,932,199
Gross Amounts Offset in the Consolidated Statement of Financial Condition	(1,932,199)
Net Amount of Unrealized Gain Presented in the Consolidated Statement of Financial Condition	$ 597,878	734,698
Options on Futures and Forward Contracts
Offsetting of Derivative Liabilities
Gross Amount of Recognized Liabilities		1,139,264
Gross Amounts Offset in the Consolidated Statement of Financial Condition		$ (1,139,264)