Financial Highlights (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
RATIOS TO AVERAGE NET ASSETS FOR TRADING COMPANIES [Abstract]
Interest Income (in hundredths)	0.00%	[1]
Trading Company Administrative Fees (in hundredths)	(0.35%)
Management Fees (in hundredths)	(1.41%)
Incentive Fees (in hundredths)	(1.79%)
Class A [Member]
NET ASSET VALUE [Roll Forward]
NET ASSET VALUE, BEGINNING OF PERIOD (in dollars per unit)	$ 900.45		$ 893.04		$ 959.86
NET OPERATING RESULTS [Abstract]
Net investment loss (in dollars per unit)	$ (30.68)		$ (30.44)		$ (32.19)
Net realized/unrealized gain (loss) (in dollars per unit)	$ 93.39		$ 37.85		$ (34.63)
Net income (loss) (in dollars per unit)	$ 62.71	[2]	$ 7.41	[2]	$ (66.82)	[2]
NET ASSET VALUE, END OF PERIOD (in dollars per unit)	$ 963.16		$ 900.45		$ 893.04
RATIOS TO AVERAGE NET ASSETS [Abstract]
Net investment loss (in hundredths)	(3.41%)		(3.40%)		(3.40%)
Partnership expenses (in hundredths)	3.41%	[3]	3.40%	[3]	3.40%	[3]
TOTAL RETURN (in hundredths)	6.96%		0.83%		(6.96%)
Class B [Member]
NET ASSET VALUE [Roll Forward]
NET ASSET VALUE, BEGINNING OF PERIOD (in dollars per unit)	$ 929.85		$ 917.60		$ 981.31
NET OPERATING RESULTS [Abstract]
Net investment loss (in dollars per unit)	$ (27.08)		$ (26.73)		$ (28.15)
Net realized/unrealized gain (loss) (in dollars per unit)	$ 96.80		$ 38.98		$ (35.56)
Net income (loss) (in dollars per unit)	$ 69.72	[2]	$ 12.25	[2]	$ (63.71)	[2]
NET ASSET VALUE, END OF PERIOD (in dollars per unit)	$ 999.57		$ 929.85		$ 917.60
RATIOS TO AVERAGE NET ASSETS [Abstract]
Net investment loss (in hundredths)	(2.91%)		(2.90%)		(2.90%)
Partnership expenses (in hundredths)	2.91%	[3]	2.90%	[3]	2.90%	[3]
TOTAL RETURN (in hundredths)	7.50%		1.33%		(6.49%)
Class C [Member]
NET ASSET VALUE [Roll Forward]
NET ASSET VALUE, BEGINNING OF PERIOD (in dollars per unit)	$ 960.20		$ 942.83		$ 1,003.23
NET OPERATING RESULTS [Abstract]
Net investment loss (in dollars per unit)	$ (23.21)		$ (22.83)		$ (23.82)
Net realized/unrealized gain (loss) (in dollars per unit)	$ 100.35		$ 40.20		$ (36.58)
Net income (loss) (in dollars per unit)	$ 77.14	[2]	$ 17.37	[2]	$ (60.40)	[2]
NET ASSET VALUE, END OF PERIOD (in dollars per unit)	$ 1,037.34		$ 960.20		$ 942.83
RATIOS TO AVERAGE NET ASSETS [Abstract]
Net investment loss (in hundredths)	(2.40%)		(2.41%)		(2.40%)
Partnership expenses (in hundredths)	2.40%	[3]	2.41%	[3]	2.40%	[3]
TOTAL RETURN (in hundredths)	8.03%		1.84%		(6.02%)
Class D [Member]
NET ASSET VALUE [Roll Forward]
NET ASSET VALUE, BEGINNING OF PERIOD (in dollars per unit)	$ 0		$ 956.28		$ 1,014.52
NET OPERATING RESULTS [Abstract]
Net investment loss (in dollars per unit)	$ 0		$ (3.46)		$ (21.73)
Net realized/unrealized gain (loss) (in dollars per unit)	$ 0		$ 8.50		$ (36.51)
Net income (loss) (in dollars per unit)	$ 0	[2]	$ 5.04	[2]	$ (58.24)	[2]
NET ASSET VALUE, END OF PERIOD (in dollars per unit)	$ 0		$ 0		$ 956.28
NET ASSET VALUE - PRIOR TO CONVERSION, END OF PERIOD (in dollars per unit)			$ 961.32
RATIOS TO AVERAGE NET ASSETS [Abstract]
Net investment loss (in hundredths)	0.00%		(2.22%)	[4]	(2.15%)
Partnership expenses (in hundredths)	0.00%	[3]	2.22%	[3],[4]	2.15%	[3]
TOTAL RETURN (in hundredths)	0.00%		0.53%	[4]	(5.74%)
Class Z [Member]
NET ASSET VALUE [Roll Forward]
NET ASSET VALUE, BEGINNING OF PERIOD (in dollars per unit)	$ 1,023.87		$ 995.36		$ 1,048.53
NET OPERATING RESULTS [Abstract]
Net investment loss (in dollars per unit)	$ (14.36)		$ (14.08)		$ (14.65)
Net realized/unrealized gain (loss) (in dollars per unit)	$ 107.65		$ 42.59		$ (38.52)
Net income (loss) (in dollars per unit)	$ 93.29	[2]	$ 28.51	[2]	$ (53.17)	[2]
NET ASSET VALUE, END OF PERIOD (in dollars per unit)	$ 1,117.16		$ 1,023.87		$ 995.36
RATIOS TO AVERAGE NET ASSETS [Abstract]
Net investment loss (in hundredths)	(1.40%)		(1.40%)		(1.40%)
Partnership expenses (in hundredths)	1.40%	[3]	1.40%	[3]	1.40%	[3]
TOTAL RETURN (in hundredths)	9.11%		2.86%		(5.07%)

[1] Amount less than 0.005%.

[2] Based on the changes in net asset value per Unit.

[3] Does not include the expenses of the Trading Companies in which the Partnership invests.

[4] Annualized as there were no Class D offerings as of March 1, 2013.