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Consolidated Condensed Schedule of Investments (USD $)
Mar. 31, 2013
Dec. 31, 2012
Open long contracts | Total Futures, Forward and Options on Futures and Forward Contracts
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts $ 423,810 [1] $ 3,472,814 [1]
Percent of Partners' Capital (net asset value) 0.07% [1] 0.55% [1]
Open long contracts | Futures Contracts
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 940,029 [1] 2,657,572 [1]
Percent of Partners' Capital (net asset value) 0.15% [1] 0.42% [1]
Open long contracts | Futures Contracts | U.S. Futures Positions:
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 5,445,341 [1] (668,620) [1]
Open long contracts | Futures Contracts | U.S. Futures Positions: | Agriculturals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (765,704) [1] (804,167) [1]
Percent of Partners' Capital (net asset value) (0.13%) [1] (0.13%) [1]
Open long contracts | Futures Contracts | U.S. Futures Positions: | Currencies
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 1,450,744 [1] 484,754 [1]
Percent of Partners' Capital (net asset value) 0.24% [1] 0.07% [1]
Open long contracts | Futures Contracts | U.S. Futures Positions: | Energy
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 1,003,705 [1] 202,322 [1]
Percent of Partners' Capital (net asset value) 0.16% [1] 0.03% [1]
Open long contracts | Futures Contracts | U.S. Futures Positions: | Interest rates
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 1,723,222 [1] (288,575) [1]
Percent of Partners' Capital (net asset value) 0.29% [1] (0.05%) [1]
Open long contracts | Futures Contracts | U.S. Futures Positions: | Meats
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 24,360 [1] (45,249) [1]
Percent of Partners' Capital (net asset value) 0.00% [1] (0.01%) [1]
Open long contracts | Futures Contracts | U.S. Futures Positions: | Metals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (35,310) [1] (131,884) [1]
Percent of Partners' Capital (net asset value) (0.01%) [1] (0.02%) [1]
Open long contracts | Futures Contracts | U.S. Futures Positions: | Soft commodities
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 383,654 [1] (53,248) [1]
Percent of Partners' Capital (net asset value) 0.06% [1] (0.01%) [1]
Open long contracts | Futures Contracts | U.S. Futures Positions: | Stock indices and single stock futures
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 1,660,670 [1] (32,573) [1]
Percent of Partners' Capital (net asset value) 0.27% [1] (0.01%) [1]
Open long contracts | Futures Contracts | Foreign Futures Positions:
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (4,505,312) [1] 3,326,192 [1]
Open long contracts | Futures Contracts | Foreign Futures Positions: | Agriculturals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (21,301) [1] 938 [1]
Percent of Partners' Capital (net asset value) 0.00% [1] 0.00% [1]
Open long contracts | Futures Contracts | Foreign Futures Positions: | Energy
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 295,886 [1] 266,288 [1]
Percent of Partners' Capital (net asset value) 0.05% [1] 0.04% [1]
Open long contracts | Futures Contracts | Foreign Futures Positions: | Interest rates
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 4,383,859 [1] 1,449,503 [1]
Percent of Partners' Capital (net asset value) 0.73% [1] 0.23% [1]
Open long contracts | Futures Contracts | Foreign Futures Positions: | Metals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (7,673,873) [1] 367,534 [1]
Percent of Partners' Capital (net asset value) (1.27%) [1] 0.06% [1]
Open long contracts | Futures Contracts | Foreign Futures Positions: | Soft commodities
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (58,335) [1] (709) [1]
Percent of Partners' Capital (net asset value) (0.01%) [1] 0.00% [1]
Open long contracts | Futures Contracts | Foreign Futures Positions: | Stock indices and single stock futures
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (1,431,548) [1] 1,242,638 [1]
Percent of Partners' Capital (net asset value) (0.23%) [1] 0.19% [1]
Open long contracts | Forward Contracts | Currencies
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (542,359) [1] 804,604 [1]
Percent of Partners' Capital (net asset value) (0.09%) [1] 0.13% [1]
Open long contracts | Options on Futures and Forward Contracts
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 26,140 [1]  
Percent of Partners' Capital (net asset value) 0.00% [1]  
Open long contracts | Options on Futures and Forward Contracts | Agriculturals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value) 0.00% [1]  
Open long contracts | Options on Futures and Forward Contracts | Currencies
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 26,140 [1] 10,638 [1]
Percent of Partners' Capital (net asset value) 0.00% [1] 0.00% [1]
Open short contracts | Total Futures, Forward and Options on Futures and Forward Contracts
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 4,004,580 [1] 208,405 [1]
Percent of Partners' Capital (net asset value) 0.66% [1] 0.03% [1]
Open short contracts | Futures Contracts
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 5,653,770 [1] (431,836) [1]
Percent of Partners' Capital (net asset value) 0.94% [1] (0.07%) [1]
Open short contracts | Futures Contracts | U.S. Futures Positions:
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (302,646) [1] 2,857,771 [1]
Open short contracts | Futures Contracts | U.S. Futures Positions: | Agriculturals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 697,536 [1] 958,379 [1]
Percent of Partners' Capital (net asset value) 0.12% [1] 0.15% [1]
Open short contracts | Futures Contracts | U.S. Futures Positions: | Currencies
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (1,809,018) [1] 2,401,456 [1]
Percent of Partners' Capital (net asset value) (0.30%) [1] 0.38% [1]
Open short contracts | Futures Contracts | U.S. Futures Positions: | Energy
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (197,198) [1] 87,791 [1]
Percent of Partners' Capital (net asset value) (0.03%) [1] 0.02% [1]
Open short contracts | Futures Contracts | U.S. Futures Positions: | Interest rates
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (408,138) [1] (585,295) [1]
Percent of Partners' Capital (net asset value) (0.07%) [1] (0.09%) [1]
Open short contracts | Futures Contracts | U.S. Futures Positions: | Meats
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (114,484) [1] (16,937) [1]
Percent of Partners' Capital (net asset value) (0.01%) [1] 0.00% [1]
Open short contracts | Futures Contracts | U.S. Futures Positions: | Metals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 534,193 [1] (103,513) [1]
Percent of Partners' Capital (net asset value) 0.09% [1] (0.02%) [1]
Open short contracts | Futures Contracts | U.S. Futures Positions: | Soft commodities
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 930,385 [1] 457,114 [1]
Percent of Partners' Capital (net asset value) 0.16% [1] 0.07% [1]
Open short contracts | Futures Contracts | U.S. Futures Positions: | Stock indices and single stock futures
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 64,078 [1] (341,224) [1]
Percent of Partners' Capital (net asset value) 0.01% [1] (0.05%) [1]
Open short contracts | Futures Contracts | Foreign Futures Positions:
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 5,956,416 [1] (3,289,607) [1]
Open short contracts | Futures Contracts | Foreign Futures Positions: | Agriculturals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 6,519 [1] 8,031 [1]
Percent of Partners' Capital (net asset value) 0.00% [1] 0.00% [1]
Open short contracts | Futures Contracts | Foreign Futures Positions: | Energy
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (125,059) [1] 71,740 [1]
Percent of Partners' Capital (net asset value) (0.02%) [1] 0.01% [1]
Open short contracts | Futures Contracts | Foreign Futures Positions: | Interest rates
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (374,723) [1] 3,028 [1]
Percent of Partners' Capital (net asset value) (0.07%) [1] 0.00% [1]
Open short contracts | Futures Contracts | Foreign Futures Positions: | Metals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 6,446,561 [1] (2,657,731) [1]
Percent of Partners' Capital (net asset value) 1.07% [1] (0.42%) [1]
Open short contracts | Futures Contracts | Foreign Futures Positions: | Soft commodities
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (14,169) [1] 8,911 [1]
Percent of Partners' Capital (net asset value) 0.00% [1] 0.00% [1]
Open short contracts | Futures Contracts | Foreign Futures Positions: | Stock indices and single stock futures
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 17,287 [1] (723,586) [1]
Percent of Partners' Capital (net asset value) 0.00% [1] (0.11%) [1]
Open short contracts | Forward Contracts | Currencies
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 82,700 [1] 640,241 [1]
Percent of Partners' Capital (net asset value) 0.01% [1] 0.10% [1]
Open short contracts | Options on Futures and Forward Contracts
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (1,731,890) [1]  
Percent of Partners' Capital (net asset value) (0.29%) [1]  
Open short contracts | Options on Futures and Forward Contracts | Agriculturals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (1,731,000) [1]  
Percent of Partners' Capital (net asset value) (0.29%) [1]  
Open short contracts | Options on Futures and Forward Contracts | Currencies
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (890) [1]  
Percent of Partners' Capital (net asset value) 0.00% [1] 0.00% [1]
Open contracts | Total Futures, Forward and Options on Futures and Forward Contracts
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 4,428,390 [1] 3,681,219 [1]
Percent of Partners' Capital (net asset value) 0.73% [1] 0.58% [1]
Open contracts | Futures Contracts
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 6,593,799 [1] 2,225,736 [1]
Percent of Partners' Capital (net asset value) 1.09% [1] 0.35% [1]
Open contracts | Futures Contracts | U.S. Futures Positions:
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 5,142,695 [1] 2,189,151 [1]
Open contracts | Futures Contracts | U.S. Futures Positions: | Agriculturals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (68,168) [1] 154,212 [1]
Percent of Partners' Capital (net asset value) (0.01%) [1] 0.02% [1]
Open contracts | Futures Contracts | U.S. Futures Positions: | Currencies
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (358,274) [1] 2,886,210 [1]
Percent of Partners' Capital (net asset value) (0.06%) [1] 0.45% [1]
Open contracts | Futures Contracts | U.S. Futures Positions: | Energy
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 806,507 [1] 290,113 [1]
Percent of Partners' Capital (net asset value) 0.13% [1] 0.05% [1]
Open contracts | Futures Contracts | U.S. Futures Positions: | Interest rates
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 1,315,084 [1] (873,870) [1]
Percent of Partners' Capital (net asset value) 0.22% [1] (0.14%) [1]
Open contracts | Futures Contracts | U.S. Futures Positions: | Meats
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (90,124) [1] (62,186) [1]
Percent of Partners' Capital (net asset value) (0.01%) [1] (0.01%) [1]
Open contracts | Futures Contracts | U.S. Futures Positions: | Metals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 498,883 [1] (235,397) [1]
Percent of Partners' Capital (net asset value) 0.08% [1] (0.04%) [1]
Open contracts | Futures Contracts | U.S. Futures Positions: | Soft commodities
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 1,314,039 [1] 403,866 [1]
Percent of Partners' Capital (net asset value) 0.22% [1] 0.06% [1]
Open contracts | Futures Contracts | U.S. Futures Positions: | Stock indices and single stock futures
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 1,724,748 [1] (373,797) [1]
Percent of Partners' Capital (net asset value) 0.28% [1] (0.06%) [1]
Open contracts | Futures Contracts | Foreign Futures Positions:
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 1,451,104 [1] 36,585 [1]
Open contracts | Futures Contracts | Foreign Futures Positions: | Agriculturals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (14,782) [1] 8,969 [1]
Percent of Partners' Capital (net asset value) 0.00% [1] 0.00% [1]
Open contracts | Futures Contracts | Foreign Futures Positions: | Energy
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 170,827 [1] 338,028 [1]
Percent of Partners' Capital (net asset value) 0.03% [1] 0.05% [1]
Open contracts | Futures Contracts | Foreign Futures Positions: | Interest rates
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 4,009,136 [1] 1,452,531 [1]
Percent of Partners' Capital (net asset value) 0.66% [1] 0.23% [1]
Open contracts | Futures Contracts | Foreign Futures Positions: | Metals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (1,227,312) [1] (2,290,197) [1]
Percent of Partners' Capital (net asset value) (0.20%) [1] (0.36%) [1]
Open contracts | Futures Contracts | Foreign Futures Positions: | Soft commodities
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (72,504) [1] 8,202 [1]
Percent of Partners' Capital (net asset value) (0.01%) [1] 0.00% [1]
Open contracts | Futures Contracts | Foreign Futures Positions: | Stock indices and single stock futures
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (1,414,261) [1] 519,052 [1]
Percent of Partners' Capital (net asset value) (0.23%) [1] 0.08% [1]
Open contracts | Forward Contracts | Currencies
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (459,659) [1] 1,444,845 [1]
Percent of Partners' Capital (net asset value) (0.08%) [1] 0.23% [1]
Open contracts | Options on Futures and Forward Contracts
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (1,705,750) [1]  
Percent of Partners' Capital (net asset value) (0.28%) [1]  
Open contracts | Options on Futures and Forward Contracts | Agriculturals
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts (1,731,000) [1]  
Percent of Partners' Capital (net asset value) (0.29%) [1]  
Open contracts | Options on Futures and Forward Contracts | Currencies
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts 25,250 [1] 10,638 [1]
Percent of Partners' Capital (net asset value) 0.00% [1] 0.00% [1]
Securities owned
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value) 56.21% 56.33%
Investments Owned, Fair Value 339,268,358 358,679,830
Securities owned | U.S. Commercial paper
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value) 6.64% 4.05%
Investments Owned, cost 40,053,389 25,763,509
Investments Owned, Fair Value 40,077,590 25,782,069
Securities owned | U.S. Government-sponsored enterprises
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value) 37.90% 41.82%
Investments Owned, cost 228,672,502 266,171,482
Investments Owned, Fair Value 228,751,272 266,282,515
Securities owned | Dell Inc | U.S. Commercial paper
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value)   1.57%
Investments Owned, Face Value   10,000,000
Investments Owned, Rate of Return   0.30%
Investments Owned, Fair Value   9,994,400
Securities owned | Coca-Cola Bottling Co Consolidated | U.S. Commercial paper
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value)   1.37%
Investments Owned, Face Value   8,700,000
Investments Owned, Rate of Return   0.20%
Investments Owned, Fair Value   8,696,404
Securities owned | Other | U.S. Commercial paper
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value) 3.49% 1.11%
Investments Owned, Face Value 21,100,000 7,100,000
Investments Owned, Rate of Return Range Minimum 0.20% [2] 0.40% [2]
Investments Owned, Rate of Return Range Maximum 0.50% [2] 0.60% [2]
Investments Owned, Fair Value 21,087,009 7,091,265
Securities owned | Federal Farm Credit Banks | U.S. Government-sponsored enterprises
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value) 34.42% 32.62%
Investments Owned, Face Value 207,700,000 207,700,000
Investments Owned, Rate of Return Range Minimum 0.20% 0.20%
Investments Owned, Rate of Return Range Maximum 0.40% 0.40%
Investments Owned, Fair Value 207,742,117 207,717,382
Securities owned | Federal Home Loan Banks | U.S. Government-sponsored enterprises
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value) 3.48% 7.31%
Investments Owned, Face Value 21,000,000 46,500,000
Investments Owned, Rate of Return Range Minimum   0.20%
Investments Owned, Rate of Return Range Maximum   0.30%
Investments Owned, Rate of Return 0.20%  
Investments Owned, Fair Value 21,009,155 46,514,106
Securities owned | Federal Agricultural Mortgage Corp. | U.S. Government-sponsored enterprises
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value)   1.89%
Investments Owned, Face Value   12,000,000
Investments Owned, Rate of Return   0.90%
Investments Owned, Fair Value   12,051,027
Securities owned | Corporate Bonds
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value) 11.67% 8.89%
Investments Owned, Face Value 66,492,000 53,066,000
Investments Owned, Rate of Return Range Minimum 0.60% 0.70%
Investments Owned, Rate of Return Range Maximum 1.50% 1.50%
Investments Owned, cost 70,295,246 56,488,948
Investments Owned, Fair Value 70,439,496 56,629,696
Securities owned | U.S. Treasury Bill
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value)   1.57%
Investments Owned, Face Value   10,000,000
Investments Owned, Rate of Return   0.20%
Investments Owned, cost   9,981,800
Investments Owned, Fair Value   9,985,550
Securities owned | JP Morgan Chase & Co. | U.S. Commercial paper
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value) 1.82%  
Investments Owned, Face Value 11,000,000  
Investments Owned, Rate of Return 0.30%  
Investments Owned, Fair Value 10,992,514  
Securities owned | Archer Daniels Midland Company | U.S. Commercial paper
   
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Percent of Partners' Capital (net asset value) 1.33%  
Investments Owned, Face Value 8,000,000  
Investments Owned, Rate of Return 0.30%  
Investments Owned, Fair Value $ 7,998,067  
[1] No individual futures, forward, and options on futures and forward contract position constituted greater than 1 percent of partners' capital (net asset value). Accordingly, the number of contracts and expiration dates are not presented.
[2] No individual position constituted greater than 1 percent of partners' capital (net asset value).