Financial Highlights (Details) - Schedule of Finanacial Highlights - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Capital Unit, Class A [Member]
Per share operating performance:
Net asset value of Trading units, beginning of period (in Dollars per share)	$ 44.25	$ 59.93	$ 49.35	$ 58.09
Total Trading income (loss):
Trading gain (loss) (in Dollars per share)	(1.72)	(1.31)	(3.65)	4.89
Investment income (in Dollars per share)	0.09	0.04	0.20	0.11
Expenses (in Dollars per share)	(2.33)	(1.98)	(5.61)	(6.41)
Trading loss (in Dollars per share)	(3.96)	(3.25)	(9.06)	(1.41)
Net asset value of Trading units, end of period (in Dollars per share)	$ 40.29	$ 56.68	$ 40.29	$ 56.68
Total return:
Total return before incentive fees	(8.94%)	(5.28%)	(18.37%)	(1.28%)
Less incentive fee allocations	0.00%	(0.15%)	0.00%	(1.15%)
Total return	(8.94%)	(5.43%)	(18.37%)	(2.43%)
Ratios to average net assets:
Trading loss	(9.19%)	(5.48%)	(19.55%)	(1.86%)
Expenses:
Expenses, less incentive fees	(5.45%)	(3.24%)	(12.20%)	(9.71%)
Incentive fees	0.00%	(0.15%)	0.00%	(1.15%)
Total expenses	(5.45%)	(3.39%)	(12.20%)	(10.86%)
Capital Unit, Class B [Member]
Per share operating performance:
Net asset value of Trading units, beginning of period (in Dollars per share)	$ 52.46	$ 69.65	$ 57.94	$ 66.84
Total Trading income (loss):
Trading gain (loss) (in Dollars per share)	(2.05)	(1.53)	(4.33)	5.62
Investment income (in Dollars per share)	0.11	0.04	0.23	0.12
Expenses (in Dollars per share)	(2.51)	(1.96)	(5.83)	(6.38)
Trading loss (in Dollars per share)	(4.45)	(3.45)	(9.93)	(0.64)
Net asset value of Trading units, end of period (in Dollars per share)	$ 48.01	$ 66.20	$ 48.01	$ 66.20
Total return:
Total return before incentive fees	(8.48%)	(4.80%)	(17.13%)	0.20%
Less incentive fee allocations	0.00%	(0.15%)	0.00%	(1.15%)
Total return	(8.48%)	(4.95%)	(17.13%)	(0.95%)
Ratios to average net assets:
Trading loss	(8.76%)	(5.03%)	(19.08%)	(0.44%)
Expenses:
Expenses, less incentive fees	(4.97%)	(2.71%)	(11.81%)	(8.16%)
Incentive fees	0.00%	(0.15%)	0.00%	(1.15%)
Total expenses	(4.97%)	(2.86%)	(11.81%)	(9.31%)