Statement of Changes in Partners' Capital (Unaudited) (USD $)	Total	Capital Unit, Class A	Capital Unit, Class D	General Partner	General Partner Capital Unit, Class A	General Partner Capital Unit, Class D	Limited Partner	Limited Partner Capital Unit, Class A	Limited Partner Capital Unit, Class D
Partners' Capital, December 31, 2010 at Dec. 31, 2010	$ 57,300,554	$ 57,300,554
Net Increase Decrease in Partners Capital
Partners' capital account, Subscriptions				4,088,254	1,250,000	2,838,254	217,708,346	205,487,941	12,220,405
Net income (loss)	(22,990,902)	(21,710,532)	(1,280,370)
Partners' capital account, redemptions				(1,863,254)	(1,863,254)		(9,784,936)	(9,784,936)
Partners' Capital, June 30, 2011 at Jun. 30, 2011	244,458,062	230,679,773	13,778,289
Partners' Capital, December 31, 2010 at Mar. 31, 2011
Net Increase Decrease in Partners Capital
Net income (loss)	(21,506,898)	(20,337,550)	(1,169,348)
Partners' Capital, June 30, 2011 at Jun. 30, 2011	$ 244,458,062	$ 230,679,773	$ 13,778,289