Financial Highlights (Details) - Schedule of Finanacial Highlights - $ / shares		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Capital Unit, Class A [Member]
Per share operating performance:
Net asset value of Trading units, beginning of period (in Dollars per share)		$ 58.09	$ 67.49
Total Trading income (loss):
Trading gain (loss) (in Dollars per share)		5.63	3.19
Investment income (in Dollars per share)		0.03	0
Expenses (in Dollars per share)		(2.23)	(2.35)
Trading income (loss) (in Dollars per share)		3.43	0.84
Net asset value of Trading units, end of period (in Dollars per share)		$ 61.52	$ 68.33
Total return:
Total return before incentive fees		6.46%	2.02%
Less incentive fee allocations		(0.56%)	(0.77%)
Total return		5.90%	1.25%
Ratios to average net assets:
Trading income (loss)		5.71%	1.28%
Expenses:
Expenses, less incentive fees		(3.13%)	(2.70%)
Incentive fees		(0.56%)	(0.77%)
Total expenses		(3.69%)	(3.47%)
Capital Unit, Class B [Member]
Per share operating performance:
Net asset value of Trading units, beginning of period (in Dollars per share)		$ 66.84	$ 76.11
Total Trading income (loss):
Trading gain (loss) (in Dollars per share)		6.48	3.57
Investment income (in Dollars per share)		0.04	0
Expenses (in Dollars per share)		(2.22)	(2.23)
Trading income (loss) (in Dollars per share)		4.30	1.34
Net asset value of Trading units, end of period (in Dollars per share)		$ 71.14	$ 77.45
Total return:
Total return before incentive fees		6.98%	2.52%
Less incentive fee allocations		(0.55%)	(0.76%)
Total return		6.43%	1.76%
Ratios to average net assets:
Trading income (loss)		6.13%	1.75%
Expenses:
Expenses, less incentive fees		(2.60%)	(2.14%)
Incentive fees		(0.55%)	(0.76%)
Total expenses		(3.15%)	(2.90%)
Capital Unit, Class C [Member]
Per share operating performance:
Net asset value of Trading units, beginning of period (in Dollars per share)	[1]	$ 0	$ 0
Total Trading income (loss):
Trading gain (loss) (in Dollars per share)	[1]	0	0
Investment income (in Dollars per share)	[1]	0	0
Expenses (in Dollars per share)	[1]	0	0
Trading income (loss) (in Dollars per share)	[1]	0	0
Net asset value of Trading units, end of period (in Dollars per share)	[1]	$ 0	$ 0
Total return:
Total return before incentive fees	[1]	0.00%	5.22%
Less incentive fee allocations	[1]	0.00%	(1.22%)
Total return	[1]	0.00%	4.00%
Ratios to average net assets:
Trading income (loss)	[1]	0.00%	3.93%
Expenses:
Expenses, less incentive fees	[1]	0.00%	(0.49%)
Incentive fees	[1]	0.00%	(1.22%)
Total expenses	[1]	0.00%	(1.71%)

[1] No financial highlights per share operating performance has been presented for Class C units for the first quarter of 2015 and 2016, respectively, since all Class C units were purchased and fully redeemed in January 2015 and no further Class C units have been issued subsequently.