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Assets and Condensed Schedule of Investments by Class of Units - Securities Owned by Class of Units (Details) - USD ($)
Dec. 31, 2016
Dec. 31, 2015
Securities owned    
Investments Owned, Cost $ 87,212,372 $ 116,001,074
Investments Owned, Fair Value 87,511,963 116,297,654
Securities owned    
Securities owned    
Investments Owned, Cost 87,212,372 116,001,074
Investments Owned, Fair Value $ 87,511,963 $ 116,297,654
Percent of Partners' Capital (Net Asset Value) 52.92% 54.41%
Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Cost $ 68,999,520 $ 82,242,670
Investments Owned, Fair Value $ 69,209,493 $ 82,472,451
Percent of Partners' Capital (Net Asset Value) 41.85% 38.59%
Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost   $ 19,158,638
Investments Owned, Fair Value   $ 19,181,775
Percent of Partners' Capital (Net Asset Value)   8.97%
Federal Farm Credit Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 47,500,000 $ 38,500,000
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.30% 1.40%
Investments Owned, Fair Value $ 47,629,368 $ 38,605,179
Percent of Partners' Capital (Net Asset Value) 28.80% 18.06%
Federal Home Loan Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 19,000,000 $ 43,735,000
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.50% 1.50%
Investments Owned, Fair Value $ 19,067,300 $ 43,867,272
Percent of Partners' Capital (Net Asset Value) 11.53% 20.53%
Federal Agricultural Mortgage Corp. | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 2,500,000  
Investments Owned, Rate of Return 1.10%  
Investments Owned, Fair Value $ 2,512,825  
Percent of Partners' Capital (Net Asset Value) 1.52%  
U.S. Corporate bonds | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Cost $ 11,093,510 $ 14,599,766
Investments Owned, Fair Value $ 11,158,232 $ 14,643,428
Percent of Partners' Capital (Net Asset Value) 6.75% 6.85%
American Electric Power | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 1,900,000  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 1,932,728  
Percent of Partners' Capital (Net Asset Value) 1.17%  
American Honda Finance | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 2,000,000  
Investments Owned, Rate of Return 1.50%  
Investments Owned, Fair Value $ 2,013,468  
Percent of Partners' Capital (Net Asset Value) 1.22%  
AT&T, Inc. | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 1,840,000  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 1,835,800  
Percent of Partners' Capital (Net Asset Value) 1.11%  
GATX Corporation | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 1,905,000  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 1,910,867  
Percent of Partners' Capital (Net Asset Value) 1.16%  
Wells Fargo & Company | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 2,000,000  
Investments Owned, Rate of Return 1.70%  
Investments Owned, Fair Value $ 2,133,790  
Percent of Partners' Capital (Net Asset Value) 1.29%  
Others | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value [1] $ 1,325,000 $ 12,284,000
Investments Owned, Rate of Return [1] 1.50%  
Investments Owned, Rate of Return Range Minimum [1]   1.20%
Investments Owned, Rate of Return Range Maximum [1]   1.80%
Investments Owned, Fair Value [1] $ 1,331,579 $ 12,431,794
Percent of Partners' Capital (Net Asset Value) [1] 0.80% 5.82%
Foreign commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 4,010,000
Investments Owned, Rate of Return Range Minimum   0.50%
Investments Owned, Rate of Return Range Maximum   0.80%
Investments Owned, Fair Value   $ 4,008,509
Percent of Partners' Capital (Net Asset Value)   1.87%
U.S. commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost $ 7,119,342  
Investments Owned, Fair Value $ 7,144,238 $ 15,173,266
Percent of Partners' Capital (Net Asset Value) 4.32% 7.10%
Coca-Cola Corp | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 4,000,000  
Investments Owned, Rate of Return 0.80%  
Investments Owned, Fair Value $ 3,994,645  
Percent of Partners' Capital (Net Asset Value) 2.42%  
Others | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value [1] $ 3,150,000 $ 11,180,000
Investments Owned, Rate of Return Range Minimum [1] 0.90% 0.40%
Investments Owned, Rate of Return Range Maximum [1] 1.40% 0.90%
Investments Owned, Fair Value [1] $ 3,149,593 $ 11,173,946
Percent of Partners' Capital (Net Asset Value) [1] 1.90% 5.23%
Class A    
Securities owned    
Investments Owned, Cost $ 5,048,054 $ 5,969,758
Investments Owned, Fair Value 5,065,395 5,985,021
Class A | Securities owned    
Securities owned    
Investments Owned, Fair Value $ 5,065,395 $ 5,985,021
Percent of Partners' Capital (Net Asset Value) 52.92% 54.41%
Class A | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Cost $ 3,993,852 $ 4,232,451
Investments Owned, Fair Value $ 4,006,006 $ 4,244,276
Percent of Partners' Capital (Net Asset Value) 41.85% 38.59%
Class A | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost   $ 985,960
Investments Owned, Fair Value   $ 987,151
Percent of Partners' Capital (Net Asset Value)   8.97%
Class A | Federal Farm Credit Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 2,749,410 $ 1,981,324
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.30% 1.40%
Investments Owned, Fair Value $ 2,756,898 $ 1,986,737
Percent of Partners' Capital (Net Asset Value) 28.80% 18.06%
Class A | Federal Home Loan Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 1,099,764 $ 2,250,732
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.50% 1.50%
Investments Owned, Fair Value $ 1,103,660 $ 2,257,539
Percent of Partners' Capital (Net Asset Value) 11.53% 20.53%
Class A | Federal Agricultural Mortgage Corp. | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 144,706  
Investments Owned, Rate of Return 1.10%  
Investments Owned, Fair Value $ 145,448  
Percent of Partners' Capital (Net Asset Value) 1.52%  
Class A | U.S. Corporate bonds | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Cost $ 642,118 $ 751,347
Investments Owned, Fair Value $ 645,864 $ 753,594
Percent of Partners' Capital (Net Asset Value) 6.75% 6.85%
Class A | American Electric Power | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 109,976  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 111,871  
Percent of Partners' Capital (Net Asset Value) 1.17%  
Class A | American Honda Finance | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 115,765  
Investments Owned, Rate of Return 1.50%  
Investments Owned, Fair Value $ 116,544  
Percent of Partners' Capital (Net Asset Value) 1.22%  
Class A | AT&T, Inc. | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 106,503  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 106,260  
Percent of Partners' Capital (Net Asset Value) 1.11%  
Class A | GATX Corporation | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 110,266  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 110,605  
Percent of Partners' Capital (Net Asset Value) 1.16%  
Class A | Wells Fargo & Company | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 115,765  
Investments Owned, Rate of Return 1.70%  
Investments Owned, Fair Value $ 123,509  
Percent of Partners' Capital (Net Asset Value) 1.29%  
Class A | Wachovia Corp | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value   $ 102,926
Investments Owned, Rate of Return   1.70%
Investments Owned, Fair Value   $ 113,817
Percent of Partners' Capital (Net Asset Value)   1.03%
Class A | Others | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 76,694 $ 632,171
Investments Owned, Rate of Return 1.50%  
Investments Owned, Rate of Return Range Minimum   1.20%
Investments Owned, Rate of Return Range Maximum   1.80%
Investments Owned, Fair Value $ 77,075 $ 639,777
Percent of Partners' Capital (Net Asset Value) 0.80% 5.82%
Class A | Foreign commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 206,366
Investments Owned, Rate of Return Range Minimum   0.50%
Investments Owned, Rate of Return Range Maximum   0.80%
Investments Owned, Fair Value   $ 206,290
Percent of Partners' Capital (Net Asset Value)   1.87%
Class A | U.S. commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost $ 412,084  
Investments Owned, Fair Value $ 413,525 $ 780,861
Percent of Partners' Capital (Net Asset Value) 4.32% 7.10%
Class A | Coca-Cola Corp | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 231,529  
Investments Owned, Rate of Return 0.80%  
Investments Owned, Fair Value $ 231,219  
Percent of Partners' Capital (Net Asset Value) 2.42%  
Class A | National Grid PLC | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 205,852
Investments Owned, Rate of Return   0.50%
Investments Owned, Fair Value   $ 205,817
Percent of Partners' Capital (Net Asset Value)   1.87%
Class A | Others | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 182,329 $ 575,356
Investments Owned, Rate of Return Range Minimum 0.90% 0.40%
Investments Owned, Rate of Return Range Maximum 1.40% 0.90%
Investments Owned, Fair Value $ 182,306 $ 575,044
Percent of Partners' Capital (Net Asset Value) 1.90% 5.23%
Class B    
Securities owned    
Investments Owned, Cost $ 52,279,208 $ 65,571,910
Investments Owned, Fair Value 52,458,798 65,739,557
Class B | Securities owned    
Securities owned    
Investments Owned, Fair Value $ 52,458,798 $ 65,739,557
Percent of Partners' Capital (Net Asset Value) 52.92% 54.41%
Class B | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Cost $ 41,361,566 $ 46,489,302
Investments Owned, Fair Value $ 41,487,434 $ 46,619,190
Percent of Partners' Capital (Net Asset Value) 41.85% 38.59%
Class B | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost   $ 10,829,800
Investments Owned, Fair Value   $ 10,842,879
Percent of Partners' Capital (Net Asset Value)   8.97%
Class B | Federal Farm Credit Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 28,473,740 $ 21,762,889
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.30% 1.40%
Investments Owned, Fair Value $ 28,551,289 $ 21,822,344
Percent of Partners' Capital (Net Asset Value) 28.80% 18.06%
Class B | Federal Home Loan Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 11,389,496 $ 24,722,077
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.50% 1.50%
Investments Owned, Fair Value $ 11,429,839 $ 24,796,846
Percent of Partners' Capital (Net Asset Value) 11.53% 20.53%
Class B | Federal Agricultural Mortgage Corp. | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 1,498,618  
Investments Owned, Rate of Return 1.10%  
Investments Owned, Fair Value $ 1,506,306  
Percent of Partners' Capital (Net Asset Value) 1.52%  
Class B | U.S. Corporate bonds | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Cost $ 6,649,973 $ 8,252,808
Investments Owned, Fair Value $ 6,688,770 $ 8,277,488
Percent of Partners' Capital (Net Asset Value) 6.75% 6.85%
Class B | American Electric Power | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 1,138,950  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 1,158,568  
Percent of Partners' Capital (Net Asset Value) 1.17%  
Class B | American Honda Finance | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 1,198,894  
Investments Owned, Rate of Return 1.50%  
Investments Owned, Fair Value $ 1,206,968  
Percent of Partners' Capital (Net Asset Value) 1.22%  
Class B | AT&T, Inc. | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 1,102,983  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 1,100,465  
Percent of Partners' Capital (Net Asset Value) 1.11%  
Class B | GATX Corporation | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 1,141,947  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 1,145,464  
Percent of Partners' Capital (Net Asset Value) 1.16%  
Class B | Wells Fargo & Company | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 1,198,894  
Investments Owned, Rate of Return 1.70%  
Investments Owned, Fair Value $ 1,279,094  
Percent of Partners' Capital (Net Asset Value) 1.29%  
Class B | Wachovia Corp | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value   $ 1,130,540
Investments Owned, Rate of Return   1.70%
Investments Owned, Fair Value   $ 1,250,170
Percent of Partners' Capital (Net Asset Value)   1.03%
Class B | Others | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 794,267 $ 6,943,775
Investments Owned, Rate of Return 1.50%  
Investments Owned, Rate of Return Range Minimum   1.20%
Investments Owned, Rate of Return Range Maximum   1.80%
Investments Owned, Fair Value $ 798,211 $ 7,027,318
Percent of Partners' Capital (Net Asset Value) 0.80% 5.82%
Class B | Foreign commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 2,266,732
Investments Owned, Rate of Return Range Minimum   0.50%
Investments Owned, Rate of Return Range Maximum   0.80%
Investments Owned, Fair Value   $ 2,265,889
Percent of Partners' Capital (Net Asset Value)   1.87%
Class B | U.S. commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost $ 4,267,669  
Investments Owned, Fair Value $ 4,282,594 $ 8,576,990
Percent of Partners' Capital (Net Asset Value) 4.32% 7.10%
Class B | Coca-Cola Corp | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 2,397,789  
Investments Owned, Rate of Return 0.80%  
Investments Owned, Fair Value $ 2,394,579  
Percent of Partners' Capital (Net Asset Value) 2.42%  
Class B | National Grid PLC | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 2,261,079
Investments Owned, Rate of Return   0.50%
Investments Owned, Fair Value   $ 2,260,695
Percent of Partners' Capital (Net Asset Value)   1.87%
Class B | Others | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 1,888,259 $ 6,319,717
Investments Owned, Rate of Return Range Minimum 0.90% 0.40%
Investments Owned, Rate of Return Range Maximum 1.40% 0.90%
Investments Owned, Fair Value $ 1,888,015 $ 6,316,295
Percent of Partners' Capital (Net Asset Value) 1.90% 5.23%
Legacy 1 Class    
Securities owned    
Investments Owned, Cost $ 679,305 $ 1,039,644
Investments Owned, Fair Value 681,639 1,042,301
Legacy 1 Class | Securities owned    
Securities owned    
Investments Owned, Fair Value $ 681,639 $ 1,042,301
Percent of Partners' Capital (Net Asset Value) 52.92% 54.41%
Legacy 1 Class | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Cost $ 537,444 $ 737,089
Investments Owned, Fair Value $ 539,080 $ 739,148
Percent of Partners' Capital (Net Asset Value) 41.85% 38.59%
Legacy 1 Class | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost   $ 171,707
Investments Owned, Fair Value   $ 171,914
Percent of Partners' Capital (Net Asset Value)   8.97%
Legacy 1 Class | Federal Farm Credit Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 369,982 $ 345,051
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.30% 1.40%
Investments Owned, Fair Value $ 370,990 $ 345,994
Percent of Partners' Capital (Net Asset Value) 28.80% 18.06%
Legacy 1 Class | Federal Home Loan Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 147,993 $ 391,969
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.50% 1.50%
Investments Owned, Fair Value $ 148,517 $ 393,154
Percent of Partners' Capital (Net Asset Value) 11.53% 20.53%
Legacy 1 Class | Federal Agricultural Mortgage Corp. | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 19,473  
Investments Owned, Rate of Return 1.10%  
Investments Owned, Fair Value $ 19,573  
Percent of Partners' Capital (Net Asset Value) 1.52%  
Legacy 1 Class | U.S. Corporate bonds | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Cost $ 86,408 $ 130,848
Investments Owned, Fair Value $ 86,912 $ 131,239
Percent of Partners' Capital (Net Asset Value) 6.75% 6.85%
Legacy 1 Class | American Electric Power | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 14,799  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 15,054  
Percent of Partners' Capital (Net Asset Value) 1.17%  
Legacy 1 Class | American Honda Finance | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 15,578  
Investments Owned, Rate of Return 1.50%  
Investments Owned, Fair Value $ 15,683  
Percent of Partners' Capital (Net Asset Value) 1.22%  
Legacy 1 Class | AT&T, Inc. | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 14,332  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 14,299  
Percent of Partners' Capital (Net Asset Value) 1.11%  
Legacy 1 Class | GATX Corporation | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 14,838  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 14,884  
Percent of Partners' Capital (Net Asset Value) 1.16%  
Legacy 1 Class | Wells Fargo & Company | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 15,578  
Investments Owned, Rate of Return 1.70%  
Investments Owned, Fair Value $ 16,620  
Percent of Partners' Capital (Net Asset Value) 1.29%  
Legacy 1 Class | Wachovia Corp | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value   $ 17,925
Investments Owned, Rate of Return   1.70%
Investments Owned, Fair Value   $ 19,821
Percent of Partners' Capital (Net Asset Value)   1.03%
Legacy 1 Class | Others | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 10,321 $ 110,094
Investments Owned, Rate of Return 1.50%  
Investments Owned, Rate of Return Range Minimum   1.20%
Investments Owned, Rate of Return Range Maximum   1.80%
Investments Owned, Fair Value $ 10,372 $ 111,418
Percent of Partners' Capital (Net Asset Value) 0.80% 5.82%
Legacy 1 Class | Foreign commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 35,939
Investments Owned, Rate of Return Range Minimum   0.50%
Investments Owned, Rate of Return Range Maximum   0.80%
Investments Owned, Fair Value   $ 35,926
Percent of Partners' Capital (Net Asset Value)   1.87%
Legacy 1 Class | U.S. commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost $ 55,453  
Investments Owned, Fair Value $ 55,647 $ 135,988
Percent of Partners' Capital (Net Asset Value) 4.32% 7.10%
Legacy 1 Class | Coca-Cola Corp | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 31,156  
Investments Owned, Rate of Return 0.80%  
Investments Owned, Fair Value $ 31,115  
Percent of Partners' Capital (Net Asset Value) 2.42%  
Legacy 1 Class | National Grid PLC | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 35,849
Investments Owned, Rate of Return   0.50%
Investments Owned, Fair Value   $ 35,843
Percent of Partners' Capital (Net Asset Value)   1.87%
Legacy 1 Class | Others | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 24,536 $ 100,199
Investments Owned, Rate of Return Range Minimum 0.90% 0.40%
Investments Owned, Rate of Return Range Maximum 1.40% 0.90%
Investments Owned, Fair Value $ 24,532 $ 100,145
Percent of Partners' Capital (Net Asset Value) 1.90% 5.23%
Legacy 2 Class    
Securities owned    
Investments Owned, Cost $ 247,329 $ 347,456
Investments Owned, Fair Value 248,178 348,345
Legacy 2 Class | Securities owned    
Securities owned    
Investments Owned, Fair Value $ 248,178 $ 348,345
Percent of Partners' Capital (Net Asset Value) 52.92% 54.41%
Legacy 2 Class | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Cost $ 195,678 $ 246,340
Investments Owned, Fair Value $ 196,274 $ 247,029
Percent of Partners' Capital (Net Asset Value) 41.85% 38.59%
Legacy 2 Class | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost   $ 57,386
Investments Owned, Fair Value   $ 57,455
Percent of Partners' Capital (Net Asset Value)   8.97%
Legacy 2 Class | Federal Farm Credit Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 134,707 $ 115,319
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.30% 1.40%
Investments Owned, Fair Value $ 135,074 $ 115,634
Percent of Partners' Capital (Net Asset Value) 28.80% 18.06%
Legacy 2 Class | Federal Home Loan Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 53,883 $ 130,999
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.50% 1.50%
Investments Owned, Fair Value $ 54,074 $ 131,395
Percent of Partners' Capital (Net Asset Value) 11.53% 20.53%
Legacy 2 Class | Federal Agricultural Mortgage Corp. | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 7,090  
Investments Owned, Rate of Return 1.10%  
Investments Owned, Fair Value $ 7,126  
Percent of Partners' Capital (Net Asset Value) 1.52%  
Legacy 2 Class | U.S. Corporate bonds | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Cost $ 31,461 $ 43,730
Investments Owned, Fair Value $ 31,643 $ 43,861
Percent of Partners' Capital (Net Asset Value) 6.75% 6.85%
Legacy 2 Class | American Electric Power | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 5,388  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 5,481  
Percent of Partners' Capital (Net Asset Value) 1.17%  
Legacy 2 Class | American Honda Finance | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 5,672  
Investments Owned, Rate of Return 1.50%  
Investments Owned, Fair Value $ 5,710  
Percent of Partners' Capital (Net Asset Value) 1.22%  
Legacy 2 Class | AT&T, Inc. | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 5,218  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 5,206  
Percent of Partners' Capital (Net Asset Value) 1.11%  
Legacy 2 Class | GATX Corporation | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 5,402  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 5,419  
Percent of Partners' Capital (Net Asset Value) 1.16%  
Legacy 2 Class | Wells Fargo & Company | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 5,672  
Investments Owned, Rate of Return 1.70%  
Investments Owned, Fair Value $ 6,051  
Percent of Partners' Capital (Net Asset Value) 1.29%  
Legacy 2 Class | Wachovia Corp | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value   $ 5,991
Investments Owned, Rate of Return   1.70%
Investments Owned, Fair Value   $ 6,624
Percent of Partners' Capital (Net Asset Value)   1.03%
Legacy 2 Class | Others | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 3,758 $ 36,794
Investments Owned, Rate of Return 1.50%  
Investments Owned, Rate of Return Range Minimum   1.20%
Investments Owned, Rate of Return Range Maximum   1.80%
Investments Owned, Fair Value $ 3,776 $ 37,237
Percent of Partners' Capital (Net Asset Value) 0.80% 5.82%
Legacy 2 Class | Foreign commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 12,011
Investments Owned, Rate of Return Range Minimum   0.50%
Investments Owned, Rate of Return Range Maximum   0.80%
Investments Owned, Fair Value   $ 12,007
Percent of Partners' Capital (Net Asset Value)   1.87%
Legacy 2 Class | U.S. commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost $ 20,190  
Investments Owned, Fair Value $ 20,261 $ 45,448
Percent of Partners' Capital (Net Asset Value) 4.32% 7.10%
Legacy 2 Class | Coca-Cola Corp | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 11,344  
Investments Owned, Rate of Return 0.80%  
Investments Owned, Fair Value $ 11,329  
Percent of Partners' Capital (Net Asset Value) 2.42%  
Legacy 2 Class | National Grid PLC | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 11,981
Investments Owned, Rate of Return   0.50%
Investments Owned, Fair Value   $ 11,979
Percent of Partners' Capital (Net Asset Value)   1.87%
Legacy 2 Class | Others | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 8,933 $ 33,487
Investments Owned, Rate of Return Range Minimum 0.90% 0.40%
Investments Owned, Rate of Return Range Maximum 1.40% 0.90%
Investments Owned, Fair Value $ 8,932 $ 33,469
Percent of Partners' Capital (Net Asset Value) 1.90% 5.23%
Global 1 Class    
Securities owned    
Investments Owned, Cost $ 17,856,749 $ 10,596,334
Investments Owned, Fair Value 17,918,088 10,623,425
Global 1 Class | Securities owned    
Securities owned    
Investments Owned, Fair Value $ 17,918,088 $ 10,623,425
Percent of Partners' Capital (Net Asset Value) 52.92% 54.41%
Global 1 Class | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Cost $ 14,127,664 $ 7,512,610
Investments Owned, Fair Value $ 14,170,655 $ 7,533,599
Percent of Partners' Capital (Net Asset Value) 41.85% 38.59%
Global 1 Class | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost   $ 1,750,081
Investments Owned, Fair Value   $ 1,752,195
Percent of Partners' Capital (Net Asset Value)   8.97%
Global 1 Class | Federal Farm Credit Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 9,725,633 $ 3,516,854
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.30% 1.40%
Investments Owned, Fair Value $ 9,752,121 $ 3,526,462
Percent of Partners' Capital (Net Asset Value) 28.80% 18.06%
Global 1 Class | Federal Home Loan Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 3,890,253 $ 3,995,055
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.50% 1.50%
Investments Owned, Fair Value $ 3,904,033 $ 4,007,137
Percent of Partners' Capital (Net Asset Value) 11.53% 20.53%
Global 1 Class | Federal Agricultural Mortgage Corp. | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 511,875  
Investments Owned, Rate of Return 1.10%  
Investments Owned, Fair Value $ 514,501  
Percent of Partners' Capital (Net Asset Value) 1.52%  
Global 1 Class | U.S. Corporate bonds | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Cost $ 2,271,398 $ 1,333,643
Investments Owned, Fair Value $ 2,284,649 $ 1,337,631
Percent of Partners' Capital (Net Asset Value) 6.75% 6.85%
Global 1 Class | American Electric Power | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 389,025  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 395,726  
Percent of Partners' Capital (Net Asset Value) 1.17%  
Global 1 Class | American Honda Finance | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 409,500  
Investments Owned, Rate of Return 1.50%  
Investments Owned, Fair Value $ 412,258  
Percent of Partners' Capital (Net Asset Value) 1.22%  
Global 1 Class | AT&T, Inc. | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 376,740  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 375,880  
Percent of Partners' Capital (Net Asset Value) 1.11%  
Global 1 Class | GATX Corporation | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 390,049  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 391,250  
Percent of Partners' Capital (Net Asset Value) 1.16%  
Global 1 Class | Wells Fargo & Company | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 409,500  
Investments Owned, Rate of Return 1.70%  
Investments Owned, Fair Value $ 436,894  
Percent of Partners' Capital (Net Asset Value) 1.29%  
Global 1 Class | Wachovia Corp | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value   $ 182,694
Investments Owned, Rate of Return   1.70%
Investments Owned, Fair Value   $ 202,026
Percent of Partners' Capital (Net Asset Value)   1.03%
Global 1 Class | Others | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 271,294 $ 1,122,105
Investments Owned, Rate of Return 1.50%  
Investments Owned, Rate of Return Range Minimum   1.20%
Investments Owned, Rate of Return Range Maximum   1.80%
Investments Owned, Fair Value $ 272,641 $ 1,135,605
Percent of Partners' Capital (Net Asset Value) 0.80% 5.82%
Global 1 Class | Foreign commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 366,301
Investments Owned, Rate of Return Range Minimum   0.50%
Investments Owned, Rate of Return Range Maximum   0.80%
Investments Owned, Fair Value   $ 366,165
Percent of Partners' Capital (Net Asset Value)   1.87%
Global 1 Class | U.S. commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost $ 1,457,687  
Investments Owned, Fair Value $ 1,462,784 $ 1,386,030
Percent of Partners' Capital (Net Asset Value) 4.32% 7.10%
Global 1 Class | Coca-Cola Corp | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 819,001  
Investments Owned, Rate of Return 0.80%  
Investments Owned, Fair Value $ 817,904  
Percent of Partners' Capital (Net Asset Value) 2.42%  
Global 1 Class | National Grid PLC | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 365,387
Investments Owned, Rate of Return   0.50%
Investments Owned, Fair Value   $ 365,325
Percent of Partners' Capital (Net Asset Value)   1.87%
Global 1 Class | Others | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 644,963 $ 1,021,258
Investments Owned, Rate of Return Range Minimum 0.90% 0.40%
Investments Owned, Rate of Return Range Maximum 1.40% 0.90%
Investments Owned, Fair Value $ 644,880 $ 1,020,705
Percent of Partners' Capital (Net Asset Value) 1.90% 5.23%
Global 2 Class    
Securities owned    
Investments Owned, Cost $ 1,083,801 $ 2,102,059
Investments Owned, Fair Value 1,087,524 2,107,434
Global 2 Class | Securities owned    
Securities owned    
Investments Owned, Fair Value $ 1,087,524 $ 2,107,434
Percent of Partners' Capital (Net Asset Value) 52.92% 54.41%
Global 2 Class | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Cost $ 857,467 $ 1,490,322
Investments Owned, Fair Value $ 860,076 $ 1,494,487
Percent of Partners' Capital (Net Asset Value) 41.85% 38.59%
Global 2 Class | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost   $ 347,174
Investments Owned, Fair Value   $ 347,593
Percent of Partners' Capital (Net Asset Value)   8.97%
Global 2 Class | Federal Farm Credit Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 590,290 $ 697,660
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.30% 1.40%
Investments Owned, Fair Value $ 591,897 $ 699,566
Percent of Partners' Capital (Net Asset Value) 28.80% 18.06%
Global 2 Class | Federal Home Loan Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 236,116 $ 792,524
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.50% 1.50%
Investments Owned, Fair Value $ 236,952 $ 794,921
Percent of Partners' Capital (Net Asset Value) 11.53% 20.53%
Global 2 Class | Federal Agricultural Mortgage Corp. | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 31,068  
Investments Owned, Rate of Return 1.10%  
Investments Owned, Fair Value $ 31,227  
Percent of Partners' Capital (Net Asset Value) 1.52%  
Global 2 Class | U.S. Corporate bonds | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Cost $ 137,861 $ 264,563
Investments Owned, Fair Value $ 138,666 $ 265,354
Percent of Partners' Capital (Net Asset Value) 6.75% 6.85%
Global 2 Class | American Electric Power | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 23,612  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 24,018  
Percent of Partners' Capital (Net Asset Value) 1.17%  
Global 2 Class | American Honda Finance | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 24,854  
Investments Owned, Rate of Return 1.50%  
Investments Owned, Fair Value $ 25,022  
Percent of Partners' Capital (Net Asset Value) 1.22%  
Global 2 Class | AT&T, Inc. | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 22,866  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 22,814  
Percent of Partners' Capital (Net Asset Value) 1.11%  
Global 2 Class | GATX Corporation | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 23,674  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 23,747  
Percent of Partners' Capital (Net Asset Value) 1.16%  
Global 2 Class | Wells Fargo & Company | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 24,854  
Investments Owned, Rate of Return 1.70%  
Investments Owned, Fair Value $ 26,517  
Percent of Partners' Capital (Net Asset Value) 1.29%  
Global 2 Class | Wachovia Corp | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value   $ 36,242
Investments Owned, Rate of Return   1.70%
Investments Owned, Fair Value   $ 40,077
Percent of Partners' Capital (Net Asset Value)   1.03%
Global 2 Class | Others | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 16,466 $ 222,599
Investments Owned, Rate of Return 1.50%  
Investments Owned, Rate of Return Range Minimum   1.20%
Investments Owned, Rate of Return Range Maximum   1.80%
Investments Owned, Fair Value $ 16,548 $ 225,277
Percent of Partners' Capital (Net Asset Value) 0.80% 5.82%
Global 2 Class | Foreign commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 72,665
Investments Owned, Rate of Return Range Minimum   0.50%
Investments Owned, Rate of Return Range Maximum   0.80%
Investments Owned, Fair Value   $ 72,638
Percent of Partners' Capital (Net Asset Value)   1.87%
Global 2 Class | U.S. commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost $ 88,473  
Investments Owned, Fair Value $ 88,782 $ 274,955
Percent of Partners' Capital (Net Asset Value) 4.32% 7.10%
Global 2 Class | Coca-Cola Corp | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 49,709  
Investments Owned, Rate of Return 0.80%  
Investments Owned, Fair Value $ 49,642  
Percent of Partners' Capital (Net Asset Value) 2.42%  
Global 2 Class | National Grid PLC | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 72,484
Investments Owned, Rate of Return   0.50%
Investments Owned, Fair Value   $ 72,472
Percent of Partners' Capital (Net Asset Value)   1.87%
Global 2 Class | Others | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 39,146 $ 202,593
Investments Owned, Rate of Return Range Minimum 0.90% 0.40%
Investments Owned, Rate of Return Range Maximum 1.40% 0.90%
Investments Owned, Fair Value $ 39,140 $ 202,483
Percent of Partners' Capital (Net Asset Value) 1.90% 5.23%
Global 3 Class    
Securities owned    
Investments Owned, Cost $ 10,017,926 $ 30,373,913
Investments Owned, Fair Value 10,052,341 30,451,571
Global 3 Class | Securities owned    
Securities owned    
Investments Owned, Fair Value $ 10,052,341 $ 30,451,571
Percent of Partners' Capital (Net Asset Value) 52.92% 54.41%
Global 3 Class | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Cost $ 7,925,849 $ 21,534,556
Investments Owned, Fair Value $ 7,949,968 $ 21,594,722
Percent of Partners' Capital (Net Asset Value) 41.85% 38.59%
Global 3 Class | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost   $ 5,016,530
Investments Owned, Fair Value   $ 5,022,588
Percent of Partners' Capital (Net Asset Value)   8.97%
Global 3 Class | Federal Farm Credit Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 5,456,238 $ 10,080,903
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.30% 1.40%
Investments Owned, Fair Value $ 5,471,099 $ 10,108,442
Percent of Partners' Capital (Net Asset Value) 28.80% 18.06%
Global 3 Class | Federal Home Loan Banks | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 2,182,495 $ 11,451,644
Investments Owned, Rate of Return Range Minimum 1.10% 1.10%
Investments Owned, Rate of Return Range Maximum 1.50% 1.50%
Investments Owned, Fair Value $ 2,190,225 $ 11,486,280
Percent of Partners' Capital (Net Asset Value) 11.53% 20.53%
Global 3 Class | Federal Agricultural Mortgage Corp. | Securities owned | U.S. Government-sponsored enterprises    
Securities owned    
Investments Owned, Face Value $ 287,170  
Investments Owned, Rate of Return 1.10%  
Investments Owned, Fair Value $ 288,644  
Percent of Partners' Capital (Net Asset Value) 1.52%  
Global 3 Class | U.S. Corporate bonds | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Cost $ 1,274,291 $ 3,822,827
Investments Owned, Fair Value $ 1,281,728 $ 3,834,261
Percent of Partners' Capital (Net Asset Value) 6.75% 6.85%
Global 3 Class | American Electric Power | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 218,250  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 222,010  
Percent of Partners' Capital (Net Asset Value) 1.17%  
Global 3 Class | American Honda Finance | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 229,737  
Investments Owned, Rate of Return 1.50%  
Investments Owned, Fair Value $ 231,283  
Percent of Partners' Capital (Net Asset Value) 1.22%  
Global 3 Class | AT&T, Inc. | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 211,358  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 210,876  
Percent of Partners' Capital (Net Asset Value) 1.11%  
Global 3 Class | GATX Corporation | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 218,824  
Investments Owned, Rate of Return 1.80%  
Investments Owned, Fair Value $ 219,498  
Percent of Partners' Capital (Net Asset Value) 1.16%  
Global 3 Class | Wells Fargo & Company | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 229,737  
Investments Owned, Rate of Return 1.70%  
Investments Owned, Fair Value $ 245,105  
Percent of Partners' Capital (Net Asset Value) 1.29%  
Global 3 Class | Wachovia Corp | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value   $ 523,682
Investments Owned, Rate of Return   1.70%
Investments Owned, Fair Value   $ 579,099
Percent of Partners' Capital (Net Asset Value)   1.03%
Global 3 Class | Others | Securities owned | Corporate Bonds    
Securities owned    
Investments Owned, Face Value $ 152,200 $ 3,216,462
Investments Owned, Rate of Return 1.50%  
Investments Owned, Rate of Return Range Minimum   1.20%
Investments Owned, Rate of Return Range Maximum   1.80%
Investments Owned, Fair Value $ 152,956 $ 3,255,162
Percent of Partners' Capital (Net Asset Value) 0.80% 5.82%
Global 3 Class | Foreign commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 1,049,986
Investments Owned, Rate of Return Range Minimum   0.50%
Investments Owned, Rate of Return Range Maximum   0.80%
Investments Owned, Fair Value   $ 1,049,594
Percent of Partners' Capital (Net Asset Value)   1.87%
Global 3 Class | U.S. commercial paper | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Cost $ 817,786  
Investments Owned, Fair Value $ 820,645 $ 3,972,994
Percent of Partners' Capital (Net Asset Value) 4.32% 7.10%
Global 3 Class | Coca-Cola Corp | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 459,472  
Investments Owned, Rate of Return 0.80%  
Investments Owned, Fair Value $ 458,857  
Percent of Partners' Capital (Net Asset Value) 2.42%  
Global 3 Class | National Grid PLC | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value   $ 1,047,368
Investments Owned, Rate of Return   0.50%
Investments Owned, Fair Value   $ 1,047,189
Percent of Partners' Capital (Net Asset Value)   1.87%
Global 3 Class | Others | Securities owned | Commercial paper    
Securities owned    
Investments Owned, Face Value $ 361,834 $ 2,927,390
Investments Owned, Rate of Return Range Minimum 0.90% 0.40%
Investments Owned, Rate of Return Range Maximum 1.40% 0.90%
Investments Owned, Fair Value $ 361,788 $ 2,925,805
Percent of Partners' Capital (Net Asset Value) 1.90% 5.23%
[1] No individual position constituted greater than 1 percent of partners' capital (net asset value).