Condensed Consolidated Schedule of Investments (Futures and Options on Futures Contracts) (Parenthetical) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Schedule of Investments [Line Items]
Premiums paid	$ 2,602,180	$ 753,417
Premiums received	3,054,481	978,634
Long Positions, Futures Positions [Member] | Put Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Premiums paid	964,657	437,577
Long Positions, Futures Positions [Member] | Put Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Premiums paid	9,620
Long Positions, Futures Positions [Member] | Call Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Premiums paid	1,627,903	237,430
Long Positions, Futures Positions [Member] | Call Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Premiums paid	0	78,410
Short Positions, Futures Positions [Member] | Put Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Premiums received	415,532	106,627
Short Positions, Futures Positions [Member] | Put Options [Member] | Currency [Member]
Schedule of Investments [Line Items]
Premiums received	73,421
Short Positions, Futures Positions [Member] | Put Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Premiums received	22,390	87,040
Short Positions, Futures Positions [Member] | Put Options [Member] | Indices [Member]
Schedule of Investments [Line Items]
Premiums received	39,900
Short Positions, Futures Positions [Member] | Put Options [Member] | Interest Rates [Member]
Schedule of Investments [Line Items]
Premiums received	29,469
Short Positions, Futures Positions [Member] | Put Options [Member] | Metals [Member]
Schedule of Investments [Line Items]
Premiums received	14,800	6,300
Short Positions, Futures Positions [Member] | Call Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Premiums received	2,512,463	460,664
Short Positions, Futures Positions [Member] | Call Options [Member] | Currency [Member]
Schedule of Investments [Line Items]
Premiums received	83,423
Short Positions, Futures Positions [Member] | Call Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Premiums received	43,450	68,200
Short Positions, Futures Positions [Member] | Call Options [Member] | Indices [Member]
Schedule of Investments [Line Items]
Premiums received	16,800
Short Positions, Futures Positions [Member] | Call Options [Member] | Interest Rates [Member]
Schedule of Investments [Line Items]
Premiums received	18,406
Short Positions, Futures Positions [Member] | Call Options [Member] | Metals [Member]
Schedule of Investments [Line Items]
Premiums received	$ 27,440	$ 6,790