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Consolidated Condensed Schedule of Investments (USD $)
Jun. 30, 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 $ (14,590,685) [1] $ 3,472,814 [1]
Percent of Partners' Capital (Net Asset Value) (2.68%) [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 (12,784,268) [1] 2,657,572 [1]
Percent of Partners' Capital (Net Asset Value) (2.35%) [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 (3,561,254) [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 (785,496) [1] (804,167) [1]
Percent of Partners' Capital (Net Asset Value) (0.14%) [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 (1,023,994) [1] 484,754 [1]
Percent of Partners' Capital (Net Asset Value) (0.19%) [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 (588,089) [1] 202,322 [1]
Percent of Partners' Capital (Net Asset Value) (0.11%) [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 (81,608) [1] (288,575) [1]
Percent of Partners' Capital (Net Asset Value) (0.02%) [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 136,389 [1] (45,249) [1]
Percent of Partners' Capital (Net Asset Value) 0.02% [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   (131,884) [1]
Percent of Partners' Capital (Net Asset Value) 0.00% [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 (202,170) [1] (53,248) [1]
Percent of Partners' Capital (Net Asset Value) (0.04%) [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 (1,016,286) [1] (32,573) [1]
Percent of Partners' Capital (Net Asset Value) (0.19%) [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 (9,223,014) [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 (2,750) [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 (22,515) [1] 266,288 [1]
Percent of Partners' Capital (Net Asset Value) 0.00% [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 (925,434) [1] 1,449,503 [1]
Percent of Partners' Capital (Net Asset Value) (0.17%) [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 (7,688,611) [1] 367,534 [1]
Percent of Partners' Capital (Net Asset Value) (1.41%) [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 (12,990) [1] (709) [1]
Percent of Partners' Capital (Net Asset Value) 0.00% [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 (570,714) [1] 1,242,638 [1]
Percent of Partners' Capital (Net Asset Value) (0.10%) [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 (1,915,940) [1] 804,604 [1]
Percent of Partners' Capital (Net Asset Value) (0.35%) [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 109,523 [1]  
Percent of Partners' Capital (Net Asset Value) 0.02% [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 88,726 [1] 10,638 [1]
Percent of Partners' Capital (Net Asset Value) 0.02% [1] 0.00% [1]
Open long contracts | Options on Futures and Forward Contracts | 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 20,797 [1]  
Percent of Partners' Capital (Net Asset Value) 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 19,134,670 [1] 208,405 [1]
Percent of Partners' Capital (Net Asset Value) 3.52% [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 17,174,748 [1] (431,836) [1]
Percent of Partners' Capital (Net Asset Value) 3.16% [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 8,237,168 [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 1,146,932 [1] 958,379 [1]
Percent of Partners' Capital (Net Asset Value) 0.21% [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 1,896,388 [1] 2,401,456 [1]
Percent of Partners' Capital (Net Asset Value) 0.35% [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 412,954 [1] 87,791 [1]
Percent of Partners' Capital (Net Asset Value) 0.08% [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 913,686 [1] (585,295) [1]
Percent of Partners' Capital (Net Asset Value) 0.17% [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 (67,165) [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 3,741,922 [1] (103,513) [1]
Percent of Partners' Capital (Net Asset Value) 0.69% [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 151,036 [1] 457,114 [1]
Percent of Partners' Capital (Net Asset Value) 0.03% [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 41,415 [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 8,937,580 [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 12,953 [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 (192,226) [1] 71,740 [1]
Percent of Partners' Capital (Net Asset Value) (0.04%) [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 530,789 [1] 3,028 [1]
Percent of Partners' Capital (Net Asset Value) 0.10% [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 8,961,099 [1] (2,657,731) [1]
Percent of Partners' Capital (Net Asset Value) 1.64% [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 (1,452) [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 (373,583) [1] (723,586) [1]
Percent of Partners' Capital (Net Asset Value) (0.07%) [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 2,201,322 [1] 640,241 [1]
Percent of Partners' Capital (Net Asset Value) 0.40% [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 (241,400) [1]  
Percent of Partners' Capital (Net Asset Value) (0.04%) [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 (241,400) [1]  
Percent of Partners' Capital (Net Asset Value) (0.04%) [1] 0.00% [1]
Open short contracts | Options on Futures and Forward Contracts | Interest rates
   
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 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 4,543,985 [1] 3,681,219 [1]
Percent of Partners' Capital (Net Asset Value) 0.84% [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 4,390,480 [1] 2,225,736 [1]
Percent of Partners' Capital (Net Asset Value) 0.81% [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 4,675,914 [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 361,436 [1] 154,212 [1]
Percent of Partners' Capital (Net Asset Value) 0.07% [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 872,394 [1] 2,886,210 [1]
Percent of Partners' Capital (Net Asset Value) 0.16% [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 (175,135) [1] 290,113 [1]
Percent of Partners' Capital (Net Asset Value) (0.03%) [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 832,078 [1] (873,870) [1]
Percent of Partners' Capital (Net Asset Value) 0.15% [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 69,224 [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 3,741,922 [1] (235,397) [1]
Percent of Partners' Capital (Net Asset Value) 0.69% [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 (51,134) [1] 403,866 [1]
Percent of Partners' Capital (Net Asset Value) (0.01%) [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 (974,871) [1] (373,797) [1]
Percent of Partners' Capital (Net Asset Value) (0.18%) [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 (285,434) [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 10,203 [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 (214,741) [1] 338,028 [1]
Percent of Partners' Capital (Net Asset Value) (0.04%) [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 (394,645) [1] 1,452,531 [1]
Percent of Partners' Capital (Net Asset Value) (0.07%) [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 1,272,488 [1] (2,290,197) [1]
Percent of Partners' Capital (Net Asset Value) 0.23% [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 (14,442) [1] 8,202 [1]
Percent of Partners' Capital (Net Asset Value) 0.00% [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 (944,297) [1] 519,052 [1]
Percent of Partners' Capital (Net Asset Value) (0.17%) [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 285,382 [1] 1,444,845 [1]
Percent of Partners' Capital (Net Asset Value) 0.05% [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 (131,877) [1]  
Percent of Partners' Capital (Net Asset Value) (0.02%) [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 (152,674) [1] 10,638 [1]
Percent of Partners' Capital (Net Asset Value) (0.02%) [1] 0.00% [1]
Open contracts | Options on Futures and Forward Contracts | 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 20,797 [1]  
Percent of Partners' Capital (Net Asset Value) 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) 67.55% 56.33%
Investments Owned, Fair Value 367,370,783 358,679,830
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) 6.75% 4.05%
Investments Owned, cost 36,656,139 25,763,509
Investments Owned, Fair Value 36,692,006 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) 45.73% 41.82%
Investments Owned, cost 248,672,502 266,171,482
Investments Owned, Fair Value 248,728,397 266,282,515
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) 4.73% 1.11%
Investments Owned, Face Value 25,700,000 7,100,000
Investments Owned, Rate of Return Range Minimum 0.30% [2] 0.40% [2]
Investments Owned, Rate of Return Range Maximum 0.50% [2] 0.60% [2]
Investments Owned, Fair Value 25,692,541 7,091,265
Securities owned | Other | 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) 15.07% 8.89%
Investments Owned, Face Value 77,919,000 53,066,000
Investments Owned, Rate of Return Range Minimum 0.50% [2] 0.70% [2]
Investments Owned, Rate of Return Range Maximum 1.50% [2] 1.50% [2]
Investments Owned, cost 81,774,401 56,488,948
Investments Owned, Fair Value 81,950,380 56,629,696
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) 38.19% 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 207,716,381 207,717,382
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) 7.54% 7.31%
Investments Owned, Face Value 41,000,000 46,500,000
Investments Owned, Rate of Return Range Minimum 0.20% 0.20%
Investments Owned, Rate of Return Range Maximum 0.80% 0.30%
Investments Owned, Fair Value 41,012,016 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 | 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) 2.02%  
Investments Owned, Face Value 11,000,000  
Investments Owned, Rate of Return 0.30%  
Investments Owned, Fair Value $ 10,999,465  
[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).