Derivative Instruments (Details 3) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Futures and Forward Contracts
Net gain (loss) from futures and forward currency trading
Total realized and changed in unrealized net gain (loss) from futures and forward currency trading	$ 1,540,976	$ 24,313,004	$ (5,934,621)	$ 16,432,245
Futures Contracts
Net gain (loss) from futures and forward currency trading
Realized	(4,068,248)	24,289,534	22,467	33,347,892
Change in unrealized	6,729,583	354,244	(4,256,137)	(13,907,614)
Total realized and changed in unrealized net gain (loss) from futures and forward currency trading	2,661,335	24,643,778	(4,233,670)	19,440,278
Forward Contracts
Net gain (loss) from futures and forward currency trading
Realized	(734,802)	708,675	(1,812,839)	(1,666,454)
Change in unrealized	(796,665)	(1,039,449)	(299,220)	(1,341,579)
Total realized and changed in unrealized net gain (loss) from futures and forward currency trading	(1,531,467)	$ (330,774)	(2,112,059)	$ (3,008,033)
Swap Contracts
Net gain (loss) from futures and forward currency trading
Change in unrealized	411,108		411,108
Total realized and changed in unrealized net gain (loss) from futures and forward currency trading	$ 411,108		$ 411,108