Financial Highlights (Details) - Schedule of Finanacial Highlights (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Capital Unit, Class A [Member]
Per share operating performance:
Net asset value of Trading units, beginning of period (in Dollars per share)	$ 71.25	$ 76.92
Total Trading income (loss):
Trading gain (loss) (in Dollars per share)	$ (6.65)	$ 0.56
Investment income (in Dollars per share)	$ 0.01	$ 0.05
Expenses (in Dollars per share)	$ (1.80)	$ (1.73)
Trading income (loss) (in Dollars per share)	$ (8.44)	$ (1.12)
Net asset value of Trading units, end of period (in Dollars per share)	$ 62.81	$ 75.80
Total return:
Total return before incentive fees	(11.85%)	(1.45%)
Less incentive fee allocations	0.00%	0.00%
Total return	(11.85%)	(1.45%)
Ratios to average net assets:
Trading income (loss)	(12.91%)	(1.44%)
Expenses:
Expenses, less incentive fees	(2.75%)	(2.28%)
Incentive fees	0.00%	0.00%
Total expenses	(2.75%)	(2.28%)
Capital Unit, Class B [Member]
Per share operating performance:
Net asset value of Trading units, beginning of period (in Dollars per share)	$ 78.74	$ 83.34
Total Trading income (loss):
Trading gain (loss) (in Dollars per share)	$ (7.35)	$ 0.60
Investment income (in Dollars per share)	$ 0.02	$ 0.06
Expenses (in Dollars per share)	$ (1.64)	$ (1.47)
Trading income (loss) (in Dollars per share)	$ (8.97)	$ (0.81)
Net asset value of Trading units, end of period (in Dollars per share)	$ 69.77	$ 82.53
Total return:
Total return before incentive fees	(11.40%)	(0.97%)
Less incentive fee allocations	0.00%	0.00%
Total return	(11.40%)	(0.97%)
Ratios to average net assets:
Trading income (loss)	(13.39%)	(1.00%)
Expenses:
Expenses, less incentive fees	(2.36%)	(1.87%)
Incentive fees	0.00%	0.00%
Total expenses	(2.36%)	(1.87%)