Statements of Operations (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Net (loss) gain allocated from investments in other funds:
Net realized (loss) gain on investments	$ (23,558,747)	$ 13,895,786
Net (decrease) increase in unrealized appreciation on investments	(9,485,394)	7,990,632
Net (loss) gain allocated from investments in other funds	(33,044,141)	21,886,418
Investment income:
Interest income	1,349,325	2,771,637
Expenses:
Brokerage fees	8,895,975	6,632,990
Advisory fees	7,502,569	5,510,660
Sponsor fees	3,751,285	2,755,331
Incentive allocation	42,993	1,967,783
Interest and other	133,754	63,774
Total expenses	20,326,576	16,930,538
Net investment loss allocated from investments in other funds	(18,977,251)	(14,158,901)
Net (loss) income	$ (52,021,392)	$ 7,727,517