STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (Unaudited) (USD $)	Class A [Member]	Class B [Member]	Class C [Member]	Class D [Member]		Class Z [Member]	Total
Balance at Dec. 31, 2009	$ 39,684,890	$ 8,492,803	$ 16,633,598	$ 12,265,562		$ 1,069,141	$ 78,145,994
Balance (in units) at Dec. 31, 2009	37,990.609	8,032.706	15,543.827	11,394.809		975.295	73,937.246
Subscriptions	6,860,593	1,899,240	3,766,753	65,000		170,000	12,761,586
Subscriptions (in units)	6,752.403	1,838.676	3,607.044	59.828		157.826	12,415.777
Net Loss	(1,887,552)	(404,952)	(695,119)	(490,235)		(41,800)	(3,519,658)
Redemptions	(2,567,845)	(512,299)	(2,194,266)				(5,274,410)
Redemptions (in units)	(2,518.494)	(503.973)	(2,088.999)				(5,111.466)
Balance at Jun. 30, 2010	42,090,086	9,474,792	17,510,966	11,840,327		1,197,341	82,113,512
Balance (in units) at Jun. 30, 2010	42,224.518	9,367.409	17,061.872	11,454.637		1,133.121	81,241.557
Balance at Mar. 31, 2010
Net Loss	(2,219,246)	(494,421)	(830,498)	(604,310)		(58,713)	(4,207,188)
Balance at Jun. 30, 2010	42,090,086	9,474,792	17,510,966	11,840,327		1,197,341	82,113,512
Balance (in units) at Jun. 30, 2010	42,224.518	9,367.409	17,061.872	11,454.637		1,133.121	81,241.557
Balance at Dec. 31, 2010	42,648,264	8,463,247	18,178,357	2,028,255		1,115,979	72,434,102
Balance (in units) at Dec. 31, 2010	39,904.989	7,784.920	16,438.640	1,818.843	[1]	975.359	66,922.751
Subscriptions	2,393,226	596,880	673,500				3,663,606
Subscriptions (in units)	2,258.482	563.218	605.343				3,427.043
Net Loss	(2,719,055)	(440,206)	(965,412)	(121,922)		(62,096)	(4,308,691)
Redemptions	(5,263,887)	(1,991,119)	(4,262,079)			(20,444)	(11,537,529)
Redemptions (in units)	(5,037.073)	(1,836.015)	(3,918.963)			(18.007)	(10,810.058)
Balance at Jun. 30, 2011	37,058,548	6,628,802	13,624,366	1,906,333		1,033,439	60,251,488
Balance (in units) at Jun. 30, 2011	37,126.398	6,512.123	13,125.020	1,818.843	[1]	957.352	59,539.736
Balance at Mar. 31, 2011
Net Loss	(2,040,595)	(329,955)	(747,885)	(95,854)		(49,896)	(3,264,185)
Balance at Jun. 30, 2011	$ 37,058,548	$ 6,628,802	$ 13,624,366	$ 1,906,333		$ 1,033,439	$ 60,251,488
Balance (in units) at Jun. 30, 2011	37,126.398	6,512.123	13,125.020	1,818.843	[1]	957.352	59,539.736

[1] * Class D Units were issued beginning on March 1, 2009