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Consolidated Condensed Schedule of Investments - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Jul. 31, 2017
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned      
Investments Owned, Cost $ 50,013,633 $ 60,715,159  
Investments Owned, Fair Value 50,080,807 60,736,458  
Grant Park Absolute Return Fund, Class I      
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned      
Investments Owned, Cost     $ 7,300,000
Open long contracts | Futures, Forward, and Swap 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 $ 3,744,861 $ 3,014,959  
Percent of Partners' Capital (Net Asset Value) 5.92% 3.87%  
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] $ (4,609) $ 19,404  
Percent of Partners' Capital (Net Asset Value) [1] (0.01%) 0.03%  
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 [1] $ 712,031 $ 1,062,446  
Percent of Partners' Capital (Net Asset Value) [1] 1.12% 1.36%  
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 [1] $ 977,884 $ 570,472  
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 [1] $ 177,229 $ (5,122)  
Percent of Partners' Capital (Net Asset Value) [1] 0.28% (0.01%)  
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] $ 69,782 $ (15,142)  
Percent of Partners' Capital (Net Asset Value) [1] 0.11% (0.02%)  
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] $ 321,136 $ (28,466)  
Percent of Partners' Capital (Net Asset Value) [1] 0.50% (0.04%)  
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] $ (62,078) $ 687,228  
Percent of Partners' Capital (Net Asset Value) [1] (0.10%) 0.88%  
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 [1] $ (240) $ 27,198  
Percent of Partners' Capital (Net Asset Value) [1]   0.03%  
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 [1] $ 196,600 $ 90,510  
Percent of Partners' Capital (Net Asset Value) [1] 0.31% 0.11%  
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 [1] $ 45,310 $ (3,636)  
Percent of Partners' Capital (Net Asset Value) [1] 0.07%    
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] $ 230,145 $ (182,098)  
Percent of Partners' Capital (Net Asset Value) [1] 0.36% (0.23%)  
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 [1] $ (265,853) $ 491,974  
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 [1]   $ 4,956  
Percent of Partners' Capital (Net Asset Value) [1]   0.01%  
Open long contracts | Futures Contracts | Foreign 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]   $ 5,618  
Percent of Partners' Capital (Net Asset Value) [1]   0.01%  
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 [1] $ (251,752) $ 769,472  
Percent of Partners' Capital (Net Asset Value) [1] (0.39%) 0.99%  
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 [1] $ (71,872) $ (123,260)  
Percent of Partners' Capital (Net Asset Value) [1] (0.11%) (0.16%)  
Open long contracts | Futures Contracts | Foreign Futures Positions | Stock indices      
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] $ 57,771 $ (164,812)  
Percent of Partners' Capital (Net Asset Value) [1] 0.09% (0.21%)  
Open long contracts | Swap 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 $ 3,037,439 $ 1,933,109  
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%  
Open long contracts | Swap Contracts | Deutsche Bank Total Return Swap Terminating April 30, 2024      
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 $ (612,793)    
Percent of Partners' Capital (Net Asset Value) (0.97%)    
Open long contracts | Swap Contracts | Deutsche Bank Total Return Swap Terminating March 29, 2019      
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   $ (595,870)  
Percent of Partners' Capital (Net Asset Value)   (0.76%)  
Open long contracts | Swap Contracts | Deutsche Bank Total Return Swap Terminating July 1, 2020      
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 $ 3,650,232 $ 2,528,979  
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%  
Open short contracts | Futures, Forward, and Swap 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 $ (374,688) $ 604,263  
Percent of Partners' Capital (Net Asset Value) (0.59%) 0.77%  
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 [1] $ (64,464) $ (60,832)  
Percent of Partners' Capital (Net Asset Value) [1] (0.10%) (0.08%)  
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 [1] $ (310,224) $ 665,095  
Percent of Partners' Capital (Net Asset Value) [1] (0.49%) 0.85%  
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 [1] $ (344,831) $ 316,423  
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] $ (21,745) $ 115,643  
Percent of Partners' Capital (Net Asset Value) [1] (0.03%) 0.15%  
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] $ (63,469) $ 47,136  
Percent of Partners' Capital (Net Asset Value) [1] (0.10%) 0.06%  
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 [1] $ (236,395) $ 212,013  
Percent of Partners' Capital (Net Asset Value) [1] (0.37%) 0.27%  
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 [1] $ 1,500 $ (193,906)  
Percent of Partners' Capital (Net Asset Value) [1]   (0.25%)  
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 [1] (3,075) $ (13,968)  
Percent of Partners' Capital (Net Asset Value) [1]   (0.01%)  
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 [1] 970 $ 6,144  
Percent of Partners' Capital (Net Asset Value) [1]   0.01%  
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 [1] $ 7,051 $ 132,494  
Percent of Partners' Capital (Net Asset Value) [1] 0.01% 0.17%  
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 [1] $ (29,668) $ 10,867  
Percent of Partners' Capital (Net Asset Value) [1] (0.04%) 0.01%  
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 [1] $ 34,607 $ 348,672  
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 [1]   560  
Open short contracts | Futures Contracts | Foreign 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]   3,108  
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 [1] $ 34,460 $ (20,778)  
Percent of Partners' Capital (Net Asset Value) [1] 0.05% (0.03%)  
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 [1] $ (1,114) $ 292,388  
Percent of Partners' Capital (Net Asset Value) [1]   0.38%  
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]   $ (4,958)  
Percent of Partners' Capital (Net Asset Value) [1]   (0.01%)  
Open short contracts | Futures Contracts | Foreign Futures Positions | Stock indices      
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] 1,261 $ 78,352  
Percent of Partners' Capital (Net Asset Value) [1]   0.10%  
Open contracts | Futures, Forward, and Swap 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 $ 3,370,173 $ 3,619,222  
Percent of Partners' Capital (Net Asset Value) 5.33% 4.64%  
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 [1] $ (69,073) $ (41,428)  
Percent of Partners' Capital (Net Asset Value) [1] (0.11%) (0.05%)  
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 [1] $ 401,807 $ 1,727,541  
Percent of Partners' Capital (Net Asset Value) [1] 0.63% 2.21%  
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 [1] $ 633,053 $ 886,895  
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 [1] $ 155,484 $ 110,521  
Percent of Partners' Capital (Net Asset Value) [1] 0.25% 0.14%  
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 [1] $ 6,313 $ 31,994  
Percent of Partners' Capital (Net Asset Value) [1] 0.01% 0.04%  
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 [1] $ 84,741 $ 183,547  
Percent of Partners' Capital (Net Asset Value) [1] 0.13% 0.23%  
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] $ (60,578) $ 493,322  
Percent of Partners' Capital (Net Asset Value) [1] (0.10%) 0.63%  
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 [1] $ (3,315) $ 13,230  
Percent of Partners' Capital (Net Asset Value) [1] (0.01%) 0.02%  
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 [1] $ 197,570 $ 96,654  
Percent of Partners' Capital (Net Asset Value) [1] 0.31% 0.12%  
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] $ 52,361 $ 128,858  
Percent of Partners' Capital (Net Asset Value) [1] 0.08% 0.17%  
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] $ 200,477 $ (171,231)  
Percent of Partners' Capital (Net Asset Value) [1] 0.32% (0.22%)  
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] $ (231,246) $ 840,646  
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 [1]   $ 5,516  
Percent of Partners' Capital (Net Asset Value) [1]   0.01%  
Open contracts | Futures Contracts | Foreign 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]   $ 8,726  
Percent of Partners' Capital (Net Asset Value) [1]   0.01%  
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 [1] $ (217,292) $ 748,694  
Percent of Partners' Capital (Net Asset Value) [1] (0.34%) 0.96%  
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] $ (72,986) $ 169,128  
Percent of Partners' Capital (Net Asset Value) [1] (0.11%) 0.22%  
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 [1]   $ (4,958)  
Percent of Partners' Capital (Net Asset Value) [1]   (0.01%)  
Open contracts | Futures Contracts | Foreign Futures Positions | Stock indices      
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] $ 59,032 $ (86,460)  
Percent of Partners' Capital (Net Asset Value) [1] 0.09% (0.11%)  
Open contracts | Swap 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 $ 3,037,439 $ 1,933,109  
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%  
Open contracts | Swap Contracts | Deutsche Bank Total Return Swap Terminating April 30, 2024      
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 $ (612,793)    
Percent of Partners' Capital (Net Asset Value) (0.97%)    
Open contracts | Swap Contracts | Deutsche Bank Total Return Swap Terminating March 29, 2019      
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   $ (595,870)  
Percent of Partners' Capital (Net Asset Value)   (0.76%)  
Open contracts | Swap Contracts | Deutsche Bank Total Return Swap Terminating July 1, 2020      
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 $ 3,650,232 $ 2,528,979  
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%  
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) 79.26% 77.93%  
Investments Owned, Cost $ 50,013,633 $ 60,715,159  
Investments Owned, Fair Value $ 50,080,807 $ 60,736,458  
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) 50.08% 53.42%  
Investments Owned, Cost $ 31,501,260 $ 41,497,750  
Investments Owned, Fair Value $ 31,644,430 $ 41,635,179  
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)   3.22%  
Investments Owned, Face Value   $ 2,500,000  
Investments Owned, Rate of Return   1.10%  
Investments Owned, Fair Value   $ 2,512,825  
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) 27.85% 29.60%  
Investments Owned, Face Value $ 17,500,000 $ 23,000,000  
Investments Owned, Rate of Return Range Minimum 1.60% 1.20%  
Investments Owned, Rate of Return Range Maximum 2.20% 1.30%  
Investments Owned, Fair Value $ 17,594,846 $ 23,067,965  
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) 22.23% 20.60%  
Investments Owned, Face Value $ 14,000,000 $ 16,000,000  
Investments Owned, Rate of Return Range Minimum 1.80% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.30% 1.50%  
Investments Owned, Fair Value $ 14,049,584 $ 16,054,389  
Securities owned | U.S. Exchange Traded Funds      
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) 7.92% 5.58%  
Investments Owned, Cost $ 5,103,899 $ 4,518,052  
Investments Owned, Fair Value $ 5,004,400 $ 4,348,700  
Securities owned | Highland/iBoxx Senior Loan ETF      
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) 2.36% 1.65%  
Investments Owned, Shares 85,000 75,000  
Investments Owned, Fair Value $ 1,490,900 $ 1,288,500  
Securities owned | PIMCO Enhanced Short Maturity Active ETF      
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) 3.22% 2.59%  
Investments Owned, Shares 20,000 20,000  
Investments Owned, Fair Value $ 2,031,800 $ 2,019,000  
Securities owned | SPDR Bloomberg Barclays Short Term High Yield Bond ETF      
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) 2.34% 1.34%  
Investments Owned, Shares 55,000 40,000  
Investments Owned, Fair Value $ 1,481,700 $ 1,041,200  
Securities owned | U.S. Treasury Bills | U.S. Government securities      
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) 21.26% 18.93%  
Investments Owned, Face Value $ 13,500,000 $ 15,000,000  
Investments Owned, Rate of Return Range Minimum 1.50% 2.10%  
Investments Owned, Rate of Return Range Maximum 2.00% 2.70%  
Investments Owned, Cost $ 13,408,474 $ 14,699,357  
Investments Owned, Fair Value $ 13,431,977 $ 14,752,579  
[1] No 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.