STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (USD $)	Class A [Member]	Class B [Member]	Class C [Member]	Class D [Member]	Class Z [Member]	Total
Balance at Dec. 31, 2009	$ 97,264,166	$ 23,606,083	$ 45,405,413	$ 3,929,404	$ 3,594,596	$ 173,799,662
Units outstanding by share class [Roll Forward]
Subscriptions	31,893,930	5,483,246	13,714,206	0	1,387,707	52,479,089
Net Income (Loss)	11,860,714	2,688,027	5,465,146	463,317	559,306	21,036,510
Redemptions	(12,588,227)	(4,596,601)	(8,932,071)	0	(187,680)	(26,304,579)
Balance at Dec. 31, 2010	128,430,583	27,180,755	55,652,694	4,392,721	5,353,929	221,010,682
Units outstanding by share class [Roll Forward]
Subscriptions	47,568,157	14,678,405	5,073,257	7,982,114	1,082,808	76,384,741
Net Income (Loss)	(25,841,914)	(5,463,936)	(8,263,219)	(1,833,359)	(915,689)	(42,318,117)
Redemptions	(15,549,874)	(6,798,257)	(14,074,412)	0	(235,155)	(36,657,698)
Balance at Dec. 31, 2011	134,606,952	29,596,967	38,388,320	10,541,476	5,285,893	218,419,608
Units outstanding by share class [Roll Forward]
Subscriptions	13,543,350	819,500	1,000,000	154,836	589,622	16,107,308
Net Income (Loss)	(12,489,712)	(2,267,079)	(2,539,968)	(897,553)	(400,300)	(18,594,612)
Redemptions	(32,146,173)	(8,223,577)	(13,299,630)	(148,089)	(731,007)	(54,548,476)
Balance at Dec. 31, 2012	$ 103,514,417	$ 19,925,811	$ 23,548,722	$ 9,650,670	$ 4,744,208	$ 161,383,828