Derivative Instruments - Fair Value of Derivative Instruments (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Fair Values of Derivative Instruments
Asset Derivatives	$ 13,403,777	$ 8,801,134
Liability Derivatives	$ (7,955,692)	$ (7,046,098)
Agriculturals | Deutsche Bank Total Return Swap Terminating March 29, 2019
Fair Values of Derivative Instruments
Sector exposure index	2.00%
Interest rates
Fair Values of Derivative Instruments
Sector exposure index		43.00%
Interest rates | Deutsche Bank Total Return Swap Terminating July 1, 2020
Fair Values of Derivative Instruments
Sector exposure index	50.00%
Interest rates | Deutsche Bank Total Return Swap Terminating March 29, 2019
Fair Values of Derivative Instruments
Sector exposure index	82.00%
Metals | Deutsche Bank Total Return Swap Terminating March 29, 2019
Fair Values of Derivative Instruments
Sector exposure index	2.00%
Stock indices | Deutsche Bank Total Return Swap Terminating July 1, 2020
Fair Values of Derivative Instruments
Sector exposure index	13.00%
Stock indices | Deutsche Bank Total Return Swap Terminating March 29, 2019
Fair Values of Derivative Instruments
Sector exposure index	4.00%
Stock indices contracts and stock index options contracts
Fair Values of Derivative Instruments
Sector exposure index		15.00%
Futures Contracts
Fair Values of Derivative Instruments
Asset Derivatives	$ 11,673,890	$ 6,950,709
Liability Derivatives	(3,562,899)	(6,123,114)
Fair Value	8,110,991	827,595
Futures Contracts | Agriculturals
Fair Values of Derivative Instruments
Asset Derivatives	461,728	708,940
Liability Derivatives	(241,369)	(192,304)
Fair Value	220,359	516,636
Futures Contracts | Currencies
Fair Values of Derivative Instruments
Asset Derivatives	1,281,566	1,586,035
Liability Derivatives	(291,139)	(488,106)
Fair Value	990,427	1,097,929
Futures Contracts | Energy
Fair Values of Derivative Instruments
Asset Derivatives	304,244	1,861,351
Liability Derivatives	(189,498)	(1,035,133)
Fair Value	114,746	826,218
Futures Contracts | Interest rates
Fair Values of Derivative Instruments
Asset Derivatives	5,742,448	853,598
Liability Derivatives	(427,947)	(2,119,167)
Fair Value	5,314,501	(1,265,569)
Futures Contracts | Meats
Fair Values of Derivative Instruments
Asset Derivatives	39,083	18,294
Liability Derivatives	(137,277)	(165,939)
Fair Value	(98,194)	(147,645)
Futures Contracts | Metals
Fair Values of Derivative Instruments
Asset Derivatives	1,807,099	1,206,519
Liability Derivatives	(1,678,254)	(912,776)
Fair Value	128,845	293,743
Futures Contracts | Soft commodities
Fair Values of Derivative Instruments
Asset Derivatives	304,602	101,389
Liability Derivatives	(48,440)	(273,791)
Fair Value	256,162	(172,402)
Futures Contracts | Stock indices
Fair Values of Derivative Instruments
Asset Derivatives	1,733,120	614,583
Liability Derivatives	(548,975)	(935,898)
Fair Value	1,184,145	(321,315)
Forward Contracts
Fair Values of Derivative Instruments
Fair Value	723,770	(240,659)
Forward Contracts | Currencies
Fair Values of Derivative Instruments
Asset Derivatives	1,614,917	682,325
Liability Derivatives	(891,147)	(922,984)
Fair Value	$ 723,770	$ (240,659)
Sector exposure index		42.00%
Forward Contracts | Currencies | Deutsche Bank Total Return Swap Terminating July 1, 2020
Fair Values of Derivative Instruments
Sector exposure index	37.00%
Forward Contracts | Currencies | Deutsche Bank Total Return Swap Terminating March 29, 2019
Fair Values of Derivative Instruments
Sector exposure index	10.00%
Swap Contracts
Fair Values of Derivative Instruments
Asset Derivatives	$ 114,970	$ 1,168,100
Liability Derivatives	(3,501,646)
Fair Value	$ (3,386,676)	$ 1,168,100
Sector exposure index		100.00%
Swap Contracts | Deutsche Bank Total Return Swap Terminating July 1, 2020
Fair Values of Derivative Instruments
Sector exposure index	100.00%
Swap Contracts | Deutsche Bank Total Return Swap Terminating March 29, 2019
Fair Values of Derivative Instruments
Sector exposure index	100.00%