CONDENSED SCHEDULE OF INVESTMENTS (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2011	Dec. 31, 2010
Investment Holdings [Line Items]
Unrealized Currency Gain	$ 44,886	$ 108,283
Fair Value	1,382,552	1,118,436
Fair Value % of Partners' Capital (in hundredths)	3.51%	2.33%
Unrealized Currency Gain % of Partners' Capital (in hundredths)	0.11%	0.23%
Futures And Forward Contracts [Member] | Contracts Purchased [Member]
Investment Holdings [Line Items]
Net unrealized gain/(loss) on open contracts	(87,005)	1,089,617
% of Partners' Capital (in hundredths)	(0.22%)	2.27%
Futures And Forward Contracts [Member] | Contracts Purchased [Member] | Foreign Currency [Member]
Investment Holdings [Line Items]
Net unrealized gain/(loss) on open contracts	(87,005)	1,089,617
% of Partners' Capital (in hundredths)	(0.22%)	2.27%
Futures And Forward Contracts [Member] | Contracts Sold [Member]
Investment Holdings [Line Items]
Net unrealized gain/(loss) on open contracts	1,424,671	(79,464)
% of Partners' Capital (in hundredths)	3.62%	(0.17%)
Futures And Forward Contracts [Member] | Contracts Sold [Member] | Foreign Currency [Member]
Investment Holdings [Line Items]
Net unrealized gain/(loss) on open contracts	1,424,671	(79,464)
% of Partners' Capital (in hundredths)	3.62%	(0.17%)
Options Contracts [Member] | Contracts Purchased [Member] | Forward Contracts [Member]
Investment Holdings [Line Items]
Net unrealized gain/(loss) on open contracts	$ 760	$ 4,459
% of Partners' Capital (in hundredths)	0.01%	0.01%