Condensed Consolidated Schedule of Investments (Futures and Options on Futures Contracts) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Long Positions, Futures Positions [Member] | Forward Positions [Member]
Schedule of Investments [Line Items]
Fair value	$ (392,924)	$ (47,917)
Long Positions, Futures Positions [Member] | Forward Positions [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(1.96%)	(1.04%)
Fair value	(422,382)	(241,904)
Long Positions, Futures Positions [Member] | Forward Positions [Member] | Currency [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.00%	0.12%
Fair value	135	28,665
Long Positions, Futures Positions [Member] | Forward Positions [Member] | Energy [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.14%	0.33%
Fair value	30,093	77,294
Long Positions, Futures Positions [Member] | Forward Positions [Member] | Indices [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.07%	0.22%
Fair value	14,518	50,444
Long Positions, Futures Positions [Member] | Forward Positions [Member] | Interest Rates [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.23%	0.08%
Fair value	49,251	19,455
Long Positions, Futures Positions [Member] | Forward Positions [Member] | Metals [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.30%)	0.08%
Fair value	(64,539)	18,129
Long Positions, Futures Positions [Member] | Put Options [Member]
Schedule of Investments [Line Items]
Fair value	1,324,061	601,497
Long Positions, Futures Positions [Member] | Put Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	6.14%	2.59%
Fair value	1,320,681	601,497
Long Positions, Futures Positions [Member] | Put Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.02%
Fair value	3,380
Long Positions, Futures Positions [Member] | Call Options [Member]
Schedule of Investments [Line Items]
Fair value	917,586	126,943
Long Positions, Futures Positions [Member] | Call Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	4.26%	0.46%
Fair value	917,326	107,423
Long Positions, Futures Positions [Member] | Call Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.00%	0.08%
Fair value	260	19,520
Short Positions, Futures Positions [Member] | Forward Positions [Member]
Schedule of Investments [Line Items]
Fair value	461,904	308,661
Short Positions, Futures Positions [Member] | Forward Positions [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	1.84%	1.39%
Fair value	396,446	324,276
Short Positions, Futures Positions [Member] | Forward Positions [Member] | Currency [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.05%)	0.20%
Fair value	(9,803)	47,442
Short Positions, Futures Positions [Member] | Forward Positions [Member] | Energy [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.06%)	(0.22%)
Fair value	(12,979)	(51,455)
Short Positions, Futures Positions [Member] | Forward Positions [Member] | Indices [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.05%	(0.05%)
Fair value	11,542	(11,941)
Short Positions, Futures Positions [Member] | Forward Positions [Member] | Interest Rates [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.01%)	0.03%
Fair value	(3,087)	7,003
Short Positions, Futures Positions [Member] | Forward Positions [Member] | Metals [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.37%	(0.03%)
Fair value	79,785	(6,664)
Short Positions, Futures Positions [Member] | Put Options [Member]
Schedule of Investments [Line Items]
Fair value	(483,863)	(348,026)
Short Positions, Futures Positions [Member] | Put Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(2.19%)	(0.44%)
Fair value	(472,273)	(102,345)
Short Positions, Futures Positions [Member] | Put Options [Member] | Currency [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		(0.41%)
Fair value		(95,775)
Short Positions, Futures Positions [Member] | Put Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.03%)	(0.46%)
Fair value	(5,590)	(106,850)
Short Positions, Futures Positions [Member] | Put Options [Member] | Indices [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		(0.09%)
Fair value		(21,850)
Short Positions, Futures Positions [Member] | Put Options [Member] | Interest Rates [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		(0.07%)
Fair value		(16,656)
Short Positions, Futures Positions [Member] | Put Options [Member] | Metals [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.03%)	(0.02%)
Fair value	(6,000)	(4,550)
Short Positions, Futures Positions [Member] | Call Options [Member]
Schedule of Investments [Line Items]
Fair value	(1,766,941)	(536,216)
Short Positions, Futures Positions [Member] | Call Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(7.77%)	(1.64%)
Fair value	(1,672,863)	(380,603)
Short Positions, Futures Positions [Member] | Call Options [Member] | Currency [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		(0.31%)
Fair value		(71,913)
Short Positions, Futures Positions [Member] | Call Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.30%)	(0.28%)
Fair value	(64,090)	(64,840)
Short Positions, Futures Positions [Member] | Call Options [Member] | Indices [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		(0.05%)
Fair value		(12,000)
Short Positions, Futures Positions [Member] | Call Options [Member] | Interest Rates [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.12%)
Fair value	(25,188)
Short Positions, Futures Positions [Member] | Call Options [Member] | Metals [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.02%)	(0.03%)
Fair value	(4,800)	(6,860)
Total Unrealized Gain (Loss) on Open Contracts [Member] | Forward Positions [Member]
Schedule of Investments [Line Items]
Fair value	$ 68,980	$ 260,744