FINANCIAL DATA HIGHLIGHTS (USD $)	3 Months Ended				6 Months Ended				3 Months Ended				6 Months Ended				3 Months Ended				6 Months Ended				3 Months Ended				6 Months Ended				3 Months Ended				6 Months Ended				3 Months Ended				6 Months Ended				3 Months Ended				4 Months Ended		6 Months Ended		1 Months Ended		3 Months Ended		6 Months Ended		1 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2013 Class A		Jun. 30, 2012 Class A		Jun. 30, 2013 Class A		Jun. 30, 2012 Class A		Jun. 30, 2013 Class C		Jun. 30, 2012 Class C		Jun. 30, 2013 Class C		Jun. 30, 2012 Class C		Jun. 30, 2013 Class D		Jun. 30, 2012 Class D		Jun. 30, 2013 Class D		Jun. 30, 2012 Class D		Jun. 30, 2013 Class I		Jun. 30, 2012 Class I		Jun. 30, 2013 Class I		Jun. 30, 2012 Class I		Jun. 30, 2013 Class DS		Jun. 30, 2012 Class DS		Jun. 30, 2013 Class DS		Jun. 30, 2012 Class DS		Jun. 30, 2013 Class DT		Jun. 30, 2012 Class DT		Jun. 30, 2013 Class DT		Jun. 30, 2012 Class DT		Jun. 30, 2013 Class M		Jun. 30, 2012 Class M		Jun. 30, 2012 Class M		Jun. 30, 2013 Class M		Jun. 30, 2013 Class F		Jun. 30, 2013 Class F		Jun. 30, 2013 Class F		Jun. 30, 2013 Class F1		Jun. 30, 2013 Class F1		Jun. 30, 2013 Class F1
Increase (Decrease) in Net Asset Value Per Unit
Net asset value, beginning of period	$ 1.7080		$ 1.7217		$ 1.6478		$ 1.7496		$ 1.5757		$ 1.6043		$ 1.5240		$ 1.6344		$ 1.7786		$ 1.7662		$ 1.7095		$ 1.7881		$ 1.7508		$ 1.7578		$ 1.6874		$ 1.7846		$ 1.7764		$ 1.7640		$ 1.7074		$ 1.7859		$ 1.8680		$ 1.8460		$ 1.7935		$ 1.8666		$ 0.9994		$ 0.9924		$ 1.0000	[1]	$ 0.9606		$ 1.0000	[2]					$ 1.0000	[3]
Net realized and net change in unrealized trading profit (loss)	$ (0.0164)		$ (0.0508)		$ 0.0601		$ (0.0622)		$ (0.0151)		$ (0.0473)		$ 0.0557		$ (0.0579)		$ (0.0173)		$ (0.0523)		$ 0.0622		$ (0.0640)		$ (0.0169)		$ (0.0519)		$ 0.0615		$ (0.0636)		$ (0.0173)		$ (0.0522)		$ 0.0622		$ (0.0639)		$ (0.0182)		$ (0.0547)		$ 0.0652		$ (0.0669)		$ (0.0097)		$ (0.0294)		$ (0.0351)	[1]	$ 0.0350		$ (0.0531)	[2]					$ (0.0241)	[3]
Brokerage commissions	$ (0.0005)		$ (0.0007)		$ (0.0011)		$ (0.0012)		$ (0.0005)		$ (0.0006)		$ (0.0011)		$ (0.0011)		$ (0.0006)		$ (0.0007)		$ (0.0012)		$ (0.0012)		$ (0.0006)		$ (0.0007)		$ (0.0012)		$ (0.0012)		$ (0.0006)		$ (0.0007)		$ (0.0012)		$ (0.0012)		$ (0.0006)		$ (0.0007)		$ (0.0012)		$ (0.0013)		$ (0.0003)		$ (0.0004)		$ (0.0005)	[1]	$ (0.0007)		$ (0.0002)	[2]					$ (0.0001)	[3]
Interest income, net	$ (0.0001)		$ (0.0001)		$ (0.0002)		$ (0.0002)		$ (0.0001)		$ (0.0001)		$ (0.0002)		$ (0.0001)		$ (0.0001)		$ (0.0001)		$ (0.0002)		$ (0.0002)		$ (0.0001)		$ (0.0001)		$ (0.0002)		$ (0.0002)		$ (0.0001)		$ (0.0001)		$ (0.0002)		$ (0.0002)		$ (0.0001)		$ (0.0001)		$ (0.0002)		$ (0.0002)		$ (0.0001)		$ (0.0001)		$ (0.0001)	[1]	$ (0.0001)		$ 0.0000	[2]					$ 0.0000	[3]
Expenses	$ (0.0161)		$ (0.0156)		$ (0.0317)		$ (0.0315)		$ (0.0187)		$ (0.0184)		$ (0.0372)		$ (0.0374)		$ (0.0098)		$ (0.0094)		$ (0.0195)		$ (0.0190)		$ (0.0145)		$ (0.0141)		$ (0.0288)		$ (0.0286)		$ (0.0098)		$ (0.0094)		$ (0.0196)		$ (0.0190)		$ (0.0078)		$ (0.0076)		$ (0.0160)		$ (0.0153)		$ (0.0056)		$ (0.0052)		$ (0.0070)	[1]	$ (0.0111)		$ 0.0058	[2]					$ 0.0001	[3]
Net asset value, end of period	$ 1.6749		$ 1.6545		$ 1.6749		$ 1.6545		$ 1.5413		$ 1.5379		$ 1.5413		$ 1.5379		$ 1.7508		$ 1.7037		$ 1.7508		$ 1.7037		$ 1.7187		$ 1.6910		$ 1.7187		$ 1.6910		$ 1.7486		$ 1.7016		$ 1.7486		$ 1.7016		$ 1.8413		$ 1.7829		$ 1.8413		$ 1.7829		$ 0.9837		$ 0.9573	[1]	$ 0.9573	[1]	$ 0.9837		$ 0.9525	[2]	$ 0.9525	[2]	$ 0.9525	[2]	$ 0.9759	[3]	$ 0.9759	[3]	$ 0.9759	[3]
Total Return:
Total return before Performance fees (as a percent)	(1.96%)	[4]	(3.90%)	[4]	1.63%	[4]	(5.43%)	[4]	(2.20%)	[4]	(4.14%)	[4]	1.12%	[4]	(5.91%)	[4]	(1.59%)	[4]	(3.54%)	[4]	2.39%	[4]	(4.72%)	[4]	(1.86%)	[4]	(3.80%)	[4]	1.83%	[4]	(5.25%)	[4]	(1.59%)	[4]	(3.54%)	[4]	2.39%	[4]	(4.72%)	[4]	(1.46%)	[4]	(3.42%)	[4]	2.65%	[4]	(4.48%)	[4]	(1.59%)	[4]	(3.54%)	[4]	(4.27%)	[1],[4]	2.39%	[4]	(5.46%)	[2],[4]					(2.53%)	[3],[4]
Performance fees (as a percent)			0.00%	[4]	(0.02%)	[4]	0.00%	[4]			0.00%	[4]	(0.02%)	[4]	0.00%	[4]			0.00%	[4]	(0.02%)	[4]	0.00%	[4]			0.00%	[4]	(0.02%)	[4]	0.00%	[4]			0.00%	[4]	(0.02%)	[4]	0.00%	[4]			0.00%	[4]	(0.02%)	[4]	0.00%	[4]			0.00%	[4]	0.00%	[1],[4]	(0.02%)	[4]
Performance fees/other (as a percent)	(0.02%)	[4],[5]							(0.02%)	[4],[5]							(0.02%)	[4],[5]							(0.02%)	[4],[5]							(0.02%)	[4],[5]							0.00%	[4],[5]							(0.02%)	[4],[5]							0.72%	[4],[5]					0.12%	[4],[5]
Total return after Performance fees (as a percent)	(1.98%)	[4]	(3.90%)	[4]	1.61%	[4]	(5.43%)	[4]	(2.22%)	[4]	(4.14%)	[4]	1.10%	[4]	(5.91%)	[4]	(1.61%)	[4]	(3.54%)	[4]	2.37%	[4]	(4.72%)	[4]	(1.88%)	[4]	(3.80%)	[4]	1.81%	[4]	(5.25%)	[4]	(1.61%)	[4]	(3.54%)	[4]	2.37%	[4]	(4.72%)	[4]	(1.46%)	[4]	(3.42%)	[4]	2.63%	[4]	(4.48%)	[4]	(1.61%)	[4]	(3.54%)	[4]	(4.27%)	[1],[4]	2.37%	[4]	(4.74%)	[2],[4]					(2.41%)	[3],[4]
Ratios to Average Member's Capital:
Expenses (excluding Performance fees) (as a percent)	0.93%	[6]	0.91%	[6]	1.87%	[6]	1.82%	[6]	1.18%	[6]	1.16%	[6]	2.37%	[6]	2.32%	[6]	0.55%	[6]	0.54%	[6]	1.12%	[6]	1.07%	[6]	0.83%	[6]	0.81%	[6]	1.67%	[6]	1.62%	[6]	0.55%	[6]	0.54%	[6]	1.12%	[6]	1.07%	[6]	0.43%	[6]	0.41%	[6]	0.87%	[6]	0.82%	[6]	0.55%	[6]	0.54%	[6]	0.72%	[1],[6]	1.12%	[6]			0.30%	[2],[6]	0.59%	[2],[6]			0.30%	[3],[6]	0.59%	[3],[6]
Performance fees (as a percent)	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	(0.02%)	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[6]	0.00%	[1],[6]	0.00%	[6]			(0.73%)	[2],[6]	(0.73%)	[2],[6]			(0.12%)	[3],[6]	(0.12%)	[3],[6]
Expenses (including Performance fees) (as a percent)	0.93%	[6]	0.91%	[6]	1.87%	[6]	1.82%	[6]	1.18%	[6]	1.16%	[6]	2.37%	[6]	2.32%	[6]	0.55%	[6]	0.54%	[6]	1.12%	[6]	1.07%	[6]	0.83%	[6]	0.81%	[6]	1.67%	[6]	1.62%	[6]	0.55%	[6]	0.54%	[6]	1.12%	[6]	1.07%	[6]	0.41%	[6]	0.41%	[6]	0.87%	[6]	0.82%	[6]	0.55%	[6]	0.54%	[6]	0.72%	[1],[6]	1.12%	[6]			(0.43%)	[2],[6]	(0.14%)	[2],[6]			0.18%	[3],[6]	0.47%	[3],[6]
Net investment income (loss) (as a percent)	(0.93%)	[6]	(0.92%)	[6]	(1.87%)	[6]	(1.83%)	[6]	(1.18%)	[6]	(1.17%)	[6]	(2.37%)	[6]	(2.33%)	[6]	(0.56%)	[6]	(0.54%)	[6]	(1.12%)	[6]	(1.08%)	[6]	(0.83%)	[6]	(0.82%)	[6]	(1.67%)	[6]	(1.63%)	[6]	(0.56%)	[6]	(0.54%)	[6]	(1.12%)	[6]	(1.08%)	[6]	(0.41%)	[6]	(0.42%)	[6]	(0.87%)	[6]	(0.83%)	[6]	(0.56%)	[6]	(0.54%)	[6]	(0.72%)	[1],[6]	(1.12%)	[6]			0.43%	[2],[6]	0.12%	[2],[6]			(0.18%)	[3],[6]	(0.49%)	[3],[6]

[1] Units issued on March 1, 2012

[2] Units issued on May 16, 2013

[3] Units issued on June 1, 2013

[4] The total return calculations are based on compounded monthly returns and are calculated for each class taken as a whole. An individual members' return may vary from these returns based on timing of capital transactions.

[5] Performance fees include reimbursement of performance fees allocated to the share classes in accordance with offering documents.

[6] The ratios to average member capital have been annualized. The performance fee ratios are not annualized.