Financial Highlights (Details) - Schedule of Finanacial Highlights (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Capital Unit, Class A [Member]
Per share operating performance:
Net asset value of Trading units, beginning of period (in Dollars per share)	$ 62.81	$ 75.80	$ 71.25	$ 76.92
Total Trading income (loss):
Trading gain (loss) (in Dollars per share)	$ 1.11	$ (1.54)	$ (5.53)	$ (0.98)
Investment income (in Dollars per share)	$ 0.02	$ 0.01	$ 0.03	$ 0.06
Expenses (in Dollars per share)	$ (2.02)	$ (1.72)	$ (3.83)	$ (3.45)
Trading income (loss) (in Dollars per share)	$ (0.89)	$ (3.25)	$ (9.33)	$ (4.37)
Net asset value of Trading units, end of period (in Dollars per share)	$ 61.92	$ 72.55	$ 61.92	$ 72.55
Total return:
Total return before incentive fees	(1.41%)	(4.30%)	(13.09%)	(5.68%)
Less incentive fee allocations	0.00%	0.00%	0.00%	0.00%
Total return	(1.41%)	(4.30%)	(13.09%)	(5.68%)
Ratios to average net assets:
Trading income (loss)	(1.60%)	(4.42%)	(15.29%)	(5.72%)
Expenses:
Expenses, less incentive fees	(3.33%)	(2.34%)	(6.02%)	(4.62%)
Incentive fees	0.00%	0.00%	0.00%	0.00%
Total expenses	(3.33%)	(2.34%)	(6.02%)	(4.62%)
Capital Unit, Class B [Member]
Per share operating performance:
Net asset value of Trading units, beginning of period (in Dollars per share)	$ 69.77	$ 82.53	$ 78.74	$ 83.34
Total Trading income (loss):
Trading gain (loss) (in Dollars per share)	$ 1.24	$ (1.68)	$ (6.11)	$ (1.07)
Investment income (in Dollars per share)	$ 0.02	$ 0	$ 0.03	$ 0.06
Expenses (in Dollars per share)	$ (1.90)	$ (1.47)	$ (3.53)	$ (2.95)
Trading income (loss) (in Dollars per share)	$ (0.64)	$ (3.15)	$ (9.61)	$ (3.96)
Net asset value of Trading units, end of period (in Dollars per share)	$ 69.13	$ 79.38	$ 69.13	$ 79.38
Total return:
Total return before incentive fees	(0.92%)	(3.81%)	(12.21%)	(4.75%)
Less incentive fee allocations	0.00%	0.00%	0.00%	0.00%
Total return	(0.92%)	(3.81%)	(12.21%)	(4.75%)
Ratios to average net assets:
Trading income (loss)	(1.14%)	(3.90%)	(16.28%)	(4.49%)
Expenses:
Expenses, less incentive fees	(2.80%)	(1.83%)	(5.01%)	(3.67%)
Incentive fees	0.00%	0.00%	0.00%	0.00%
Total expenses	(2.80%)	(1.83%)	(5.01%)	(3.67%)