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Assets and Condensed Schedule of Investments by Class of Units - Investments by Class of Units (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
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 | 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 | 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 | 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 | 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 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 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 | 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 | 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 | 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%
Class A | 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 $ 238,003 $ 181,678
Percent of Partners' Capital (Net Asset Value) 5.92% 3.87%
Class A | 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 $ 45,254 $ 64,023
Percent of Partners' Capital (Net Asset Value) 1.12% 1.36%
Class A | 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 $ 62,150 $ 34,376
Class A | 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 $ 11,264 $ (309)
Percent of Partners' Capital (Net Asset Value) 0.28% (0.01%)
Class A | 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 $ 4,435 $ (912)
Percent of Partners' Capital (Net Asset Value) 0.11% (0.02%)
Class A | 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 $ 20,409 $ (1,715)
Percent of Partners' Capital (Net Asset Value) 0.50% (0.04%)
Class A | 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 $ (3,945) $ 41,411
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.88%
Class A | 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 $ (15) $ 1,639
Percent of Partners' Capital (Net Asset Value)   0.03%
Class A | 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 $ 12,495 $ 5,454
Percent of Partners' Capital (Net Asset Value) 0.31% 0.11%
Class A | 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 $ 2,880 $ (219)
Percent of Partners' Capital (Net Asset Value) 0.07%  
Class A | 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 $ 14,627 $ (10,973)
Percent of Partners' Capital (Net Asset Value) 0.36% (0.23%)
Class A | 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 $ (16,896) $ 29,647
Class A | 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   $ 299
Percent of Partners' Capital (Net Asset Value)   0.01%
Class A | 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   $ 339
Percent of Partners' Capital (Net Asset Value)   0.01%
Class A | 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 $ (16,000) $ 46,367
Percent of Partners' Capital (Net Asset Value) (0.39%) 0.99%
Class A | 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 $ (4,568) $ (7,427)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.16%)
Class A | 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 $ 3,672 $ (9,931)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.21%)
Class A | 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 $ (293) $ 1,169
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.03%
Class A | 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 $ 193,042 $ 116,486
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Class A | 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 $ (38,945)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Class A | 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   $ (35,906)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Class A | 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 $ 231,987 $ 152,392
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
Class A | 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 $ (23,814) $ 36,411
Percent of Partners' Capital (Net Asset Value) (0.59%) 0.77%
Class A | 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 $ (19,717) $ 40,077
Percent of Partners' Capital (Net Asset Value) (0.49%) 0.85%
Class A | 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 $ (21,916) $ 19,067
Class A | 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 $ (1,382) $ 6,968
Percent of Partners' Capital (Net Asset Value) (0.03%) 0.15%
Class A | 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 $ (4,034) $ 2,840
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.06%
Class A | 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 $ (15,024) $ 12,776
Percent of Partners' Capital (Net Asset Value) (0.37%) 0.27%
Class A | 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 $ 95 $ (11,684)
Percent of Partners' Capital (Net Asset Value)   (0.25%)
Class A | 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 (195) $ (842)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Class A | 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 62 $ 370
Percent of Partners' Capital (Net Asset Value)   0.01%
Class A | 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 $ 448 $ 7,984
Percent of Partners' Capital (Net Asset Value) 0.01% 0.17%
Class A | 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 $ (1,886) $ 655
Percent of Partners' Capital (Net Asset Value) (0.04%) 0.01%
Class A | 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 $ 2,199 $ 21,010
Class A | 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   34
Class A | 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   187
Class A | 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 $ 2,190 $ (1,252)
Percent of Partners' Capital (Net Asset Value) 0.05% (0.03%)
Class A | 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 $ (71) $ 17,619
Percent of Partners' Capital (Net Asset Value)   0.38%
Class A | 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   $ (299)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Class A | 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 80 $ 4,721
Percent of Partners' Capital (Net Asset Value)   0.10%
Class A | 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 $ (4,097) $ (3,666)
Percent of Partners' Capital (Net Asset Value) (0.10%) (0.08%)
Class A | 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 $ 214,189 $ 218,089
Percent of Partners' Capital (Net Asset Value) 5.33% 4.64%
Class A | 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 $ 25,537 $ 104,100
Percent of Partners' Capital (Net Asset Value) 0.63% 2.21%
Class A | 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 $ 40,234 $ 53,443
Class A | 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 $ 9,882 $ 6,659
Percent of Partners' Capital (Net Asset Value) 0.25% 0.14%
Class A | 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 $ 401 $ 1,928
Percent of Partners' Capital (Net Asset Value) 0.01% 0.04%
Class A | 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 $ 5,385 $ 11,061
Percent of Partners' Capital (Net Asset Value) 0.13% 0.23%
Class A | 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 $ (3,850) $ 29,727
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.63%
Class A | 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 $ (210) $ 797
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.02%
Class A | 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 $ 12,557 $ 5,824
Percent of Partners' Capital (Net Asset Value) 0.31% 0.12%
Class A | 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 $ 3,328 $ 7,765
Percent of Partners' Capital (Net Asset Value) 0.08% 0.17%
Class A | 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 $ 12,741 $ (10,318)
Percent of Partners' Capital (Net Asset Value) 0.32% (0.22%)
Class A | 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 $ (14,697) $ 50,657
Class A | 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   $ 333
Percent of Partners' Capital (Net Asset Value)   0.01%
Class A | 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   $ 526
Percent of Partners' Capital (Net Asset Value)   0.01%
Class A | 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 $ (13,810) $ 45,115
Percent of Partners' Capital (Net Asset Value) (0.34%) 0.96%
Class A | 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 $ (4,639) $ 10,192
Percent of Partners' Capital (Net Asset Value) (0.11%) 0.22%
Class A | 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   $ (299)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Class A | 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 $ 3,752 $ (5,210)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.11%)
Class A | 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 $ (4,390) $ (2,497)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.05%)
Class A | 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 $ 193,042 $ 116,486
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Class A | 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 $ (38,945)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Class A | 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   $ (35,906)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Class A | 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 $ 231,987 $ 152,392
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
Class B | 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 $ 2,478,638 $ 1,983,901
Percent of Partners' Capital (Net Asset Value) 5.92% 3.87%
Class B | 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 $ 471,276 $ 699,107
Percent of Partners' Capital (Net Asset Value) 1.12% 1.36%
Class B | 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 $ 647,239 $ 375,381
Class B | 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 $ 117,303 $ (3,371)
Percent of Partners' Capital (Net Asset Value) 0.28% (0.01%)
Class B | 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 $ 46,187 $ (9,964)
Percent of Partners' Capital (Net Asset Value) 0.11% (0.02%)
Class B | 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 $ 212,553 $ (18,732)
Percent of Partners' Capital (Net Asset Value) 0.50% (0.04%)
Class B | 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 $ (41,088) $ 452,210
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.88%
Class B | 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 $ (159) $ 17,897
Percent of Partners' Capital (Net Asset Value)   0.03%
Class B | 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 $ 130,125 $ 59,558
Percent of Partners' Capital (Net Asset Value) 0.31% 0.11%
Class B | 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 $ 29,990 $ (2,393)
Percent of Partners' Capital (Net Asset Value) 0.07%  
Class B | 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 $ 152,328 $ (119,824)
Percent of Partners' Capital (Net Asset Value) 0.36% (0.23%)
Class B | 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 $ (175,963) $ 323,726
Class B | 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   $ 3,260
Percent of Partners' Capital (Net Asset Value)   0.01%
Class B | 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]   $ 3,696
Percent of Partners' Capital (Net Asset Value) [1]   0.01%
Class B | 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 $ (166,629) $ 506,329
Percent of Partners' Capital (Net Asset Value) (0.39%) 0.99%
Class B | 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 $ (47,570) $ (81,109)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.16%)
Class B | 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 $ 38,236 $ (108,450)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.21%)
Class B | 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 $ (3,051) $ 12,769
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.03%
Class B | 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 $ 2,010,413 $ 1,272,025
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Class B | 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 $ (405,594)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Class B | 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   $ (392,095)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Class B | 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 $ 2,416,007 $ 1,664,120
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
Class B | 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 $ (247,996) $ 397,623
Percent of Partners' Capital (Net Asset Value) (0.59%) 0.77%
Class B | 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 $ (205,329) $ 437,651
Percent of Partners' Capital (Net Asset Value) (0.49%) 0.85%
Class B | 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 $ (228,235) $ 208,214
Class B | 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 $ (14,393) $ 76,096
Percent of Partners' Capital (Net Asset Value) (0.03%) 0.15%
Class B | 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 $ (42,009) $ 31,017
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.06%
Class B | 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 $ (156,465) $ 139,509
Percent of Partners' Capital (Net Asset Value) (0.37%) 0.27%
Class B | 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 $ 993 $ (127,595)
Percent of Partners' Capital (Net Asset Value)   (0.25%)
Class B | 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 (2,035) $ (9,190)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Class B | 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 642 $ 4,042
Percent of Partners' Capital (Net Asset Value)   0.01%
Class B | 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 $ 4,668 $ 87,184
Percent of Partners' Capital (Net Asset Value) 0.01% 0.17%
Class B | 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 $ (19,636) $ 7,151
Percent of Partners' Capital (Net Asset Value) (0.04%) 0.01%
Class B | 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 $ 22,906 $ 229,437
Class B | 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   370
Class B | 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]   2,046
Class B | 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 $ 22,808 $ (13,672)
Percent of Partners' Capital (Net Asset Value) 0.05% (0.03%)
Class B | 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 $ (737) $ 192,397
Percent of Partners' Capital (Net Asset Value)   0.38%
Class B | 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   $ (3,261)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Class B | 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 835 $ 51,557
Percent of Partners' Capital (Net Asset Value)   0.10%
Class B | 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 $ (42,667) $ (40,028)
Percent of Partners' Capital (Net Asset Value) (0.10%) (0.08%)
Class B | 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 $ 2,230,642 $ 2,381,524
Percent of Partners' Capital (Net Asset Value) 5.33% 4.64%
Class B | 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 $ 265,947 $ 1,136,758
Percent of Partners' Capital (Net Asset Value) 0.64% 2.21%
Class B | 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 $ 419,004 $ 583,595
Class B | 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 $ 102,910 $ 72,725
Percent of Partners' Capital (Net Asset Value) 0.25% 0.14%
Class B | 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 $ 4,178 $ 21,053
Percent of Partners' Capital (Net Asset Value) 0.01% 0.04%
Class B | 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 $ 56,088 $ 120,777
Percent of Partners' Capital (Net Asset Value) 0.13% 0.23%
Class B | 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 $ (40,095) $ 324,615
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.63%
Class B | 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 $ (2,194) $ 8,707
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.02%
Class B | 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 $ 130,767 $ 63,600
Percent of Partners' Capital (Net Asset Value) 0.31% 0.12%
Class B | 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 $ 34,658 $ 84,791
Percent of Partners' Capital (Net Asset Value) 0.08% 0.17%
Class B | 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 $ 132,692 $ (112,673)
Percent of Partners' Capital (Net Asset Value) 0.32% (0.22%)
Class B | 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 $ (153,057) $ 553,163
Class B | 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   $ 3,630
Percent of Partners' Capital (Net Asset Value)   0.01%
Class B | 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]   $ 5,742
Percent of Partners' Capital (Net Asset Value) [1]   0.01%
Class B | 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 $ (143,821) $ 492,657
Percent of Partners' Capital (Net Asset Value) (0.34%) 0.96%
Class B | 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 $ (48,307) $ 111,288
Percent of Partners' Capital (Net Asset Value) (0.11%) 0.22%
Class B | 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   $ (3,261)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Class B | 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 $ 39,071 $ (56,893)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.11%)
Class B | 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 $ (45,718) $ (27,259)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.05%)
Class B | 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 $ 2,010,413 $ 1,272,025
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Class B | 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 $ (405,594)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Class B | 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   $ (392,095)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Class B | 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 $ 2,416,007 $ 1,664,120
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
Legacy 1 Class | 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 $ 24,552 $ 39,052
Percent of Partners' Capital (Net Asset Value) 5.92% 3.87%
Legacy 1 Class | 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 $ 4,669 $ 13,761
Percent of Partners' Capital (Net Asset Value) 1.12% 1.36%
Legacy 1 Class | 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 $ 6,411 $ 7,389
Legacy 1 Class | 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 $ 1,162 $ (66)
Percent of Partners' Capital (Net Asset Value) 0.28% (0.01%)
Legacy 1 Class | 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 $ 458 $ (196)
Percent of Partners' Capital (Net Asset Value) 0.11% (0.02%)
Legacy 1 Class | 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 $ 2,105 $ (369)
Percent of Partners' Capital (Net Asset Value) 0.50% (0.04%)
Legacy 1 Class | 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 $ (407) $ 8,902
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.88%
Legacy 1 Class | 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 $ (2) $ 352
Percent of Partners' Capital (Net Asset Value)   0.03%
Legacy 1 Class | 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 $ 1,289 $ 1,172
Percent of Partners' Capital (Net Asset Value) 0.31% 0.11%
Legacy 1 Class | 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 $ 297 $ (47)
Percent of Partners' Capital (Net Asset Value) 0.07%  
Legacy 1 Class | 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 $ 1,509 $ (2,359)
Percent of Partners' Capital (Net Asset Value) 0.36% (0.23%)
Legacy 1 Class | 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 $ (1,742) $ 6,372
Legacy 1 Class | 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   $ 64
Percent of Partners' Capital (Net Asset Value)   0.01%
Legacy 1 Class | 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   $ 73
Percent of Partners' Capital (Net Asset Value)   0.01%
Legacy 1 Class | 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 $ (1,650) $ 9,967
Percent of Partners' Capital (Net Asset Value) (0.39%) 0.99%
Legacy 1 Class | 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 $ (471) $ (1,597)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.16%)
Legacy 1 Class | 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 $ 379 $ (2,135)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.21%)
Legacy 1 Class | 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 $ (30) $ 251
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.03%
Legacy 1 Class | 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 $ 19,913 $ 25,040
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Legacy 1 Class | 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 $ (4,018)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Legacy 1 Class | 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   $ (7,718)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Legacy 1 Class | 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 $ 23,931 $ 32,758
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
Legacy 1 Class | 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 $ (2,458) $ 7,827
Percent of Partners' Capital (Net Asset Value) (0.59%) 0.77%
Legacy 1 Class | 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 $ (2,035) $ 8,615
Percent of Partners' Capital (Net Asset Value) (0.49%) 0.85%
Legacy 1 Class | 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 $ (2,262) $ 4,099
Legacy 1 Class | 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 $ (143) $ 1,498
Percent of Partners' Capital (Net Asset Value) (0.03%) 0.15%
Legacy 1 Class | 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 $ (416) $ 611
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.06%
Legacy 1 Class | 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 $ (1,550) $ 2,746
Percent of Partners' Capital (Net Asset Value) (0.37%) 0.27%
Legacy 1 Class | 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 $ 10 $ (2,512)
Percent of Partners' Capital (Net Asset Value)   (0.25%)
Legacy 1 Class | 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 (20) $ (181)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Legacy 1 Class | 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 6 $ 80
Percent of Partners' Capital (Net Asset Value)   0.01%
Legacy 1 Class | 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 $ 46 $ 1,716
Percent of Partners' Capital (Net Asset Value) 0.01% 0.17%
Legacy 1 Class | 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 $ (195) $ 141
Percent of Partners' Capital (Net Asset Value) (0.04%) 0.01%
Legacy 1 Class | 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 $ 227 $ 4,516
Legacy 1 Class | 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   7
Legacy 1 Class | 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   40
Legacy 1 Class | 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 $ 226 $ (269)
Percent of Partners' Capital (Net Asset Value) 0.05% (0.03%)
Legacy 1 Class | 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 $ (7) $ 3,787
Percent of Partners' Capital (Net Asset Value)   0.38%
Legacy 1 Class | 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   $ (64)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Legacy 1 Class | 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 8 $ 1,015
Percent of Partners' Capital (Net Asset Value)   0.10%
Legacy 1 Class | 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 $ (423) $ (788)
Percent of Partners' Capital (Net Asset Value) (0.10%) (0.08%)
Legacy 1 Class | 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 $ 22,094 $ 46,879
Percent of Partners' Capital (Net Asset Value) 5.33% 4.64%
Legacy 1 Class | 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 $ 2,634 $ 22,376
Percent of Partners' Capital (Net Asset Value) 0.63% 2.21%
Legacy 1 Class | 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 $ 4,149 $ 11,488
Legacy 1 Class | 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 $ 1,019 $ 1,432
Percent of Partners' Capital (Net Asset Value) 0.25% 0.14%
Legacy 1 Class | 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 $ 42 $ 415
Percent of Partners' Capital (Net Asset Value) 0.01% 0.04%
Legacy 1 Class | 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 $ 555 $ 2,377
Percent of Partners' Capital (Net Asset Value) 0.13% 0.23%
Legacy 1 Class | 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 $ (397) $ 6,390
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.63%
Legacy 1 Class | 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 $ (22) $ 171
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.02%
Legacy 1 Class | 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 $ 1,295 $ 1,252
Percent of Partners' Capital (Net Asset Value) 0.31% 0.12%
Legacy 1 Class | 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 $ 343 $ 1,669
Percent of Partners' Capital (Net Asset Value) 0.08% 0.17%
Legacy 1 Class | 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 $ 1,314 $ (2,218)
Percent of Partners' Capital (Net Asset Value) 0.32% (0.22%)
Legacy 1 Class | 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 $ (1,515) $ 10,888
Legacy 1 Class | 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   $ 71
Percent of Partners' Capital (Net Asset Value)   0.01%
Legacy 1 Class | 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   $ 113
Percent of Partners' Capital (Net Asset Value)   0.01%
Legacy 1 Class | 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 $ (1,424) $ 9,698
Percent of Partners' Capital (Net Asset Value) (0.34%) 0.96%
Legacy 1 Class | 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 $ (478) $ 2,190
Percent of Partners' Capital (Net Asset Value) (0.11%) 0.22%
Legacy 1 Class | 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   $ (64)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Legacy 1 Class | 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 $ 387 $ (1,120)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.11%)
Legacy 1 Class | 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 $ (453) $ (537)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.05%)
Legacy 1 Class | 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 $ 19,913 $ 25,040
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Legacy 1 Class | 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 $ (4,018)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Legacy 1 Class | 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   $ (7,718)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Legacy 1 Class | 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 $ 23,931 $ 32,758
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
Legacy 2 Class | 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 $ 19,336 $ 12,583
Percent of Partners' Capital (Net Asset Value) 5.92% 3.87%
Legacy 2 Class | 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 $ 3,675 $ 4,435
Percent of Partners' Capital (Net Asset Value) 1.12% 1.36%
Legacy 2 Class | Open long contracts | Futures Contracts | U.S. Futures Positions    
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts $ 5,048 $ 2,382
Legacy 2 Class | 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 $ 915 $ (21)
Percent of Partners' Capital (Net Asset Value) 0.28% (0.01%)
Legacy 2 Class | 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 $ 360 $ (63)
Percent of Partners' Capital (Net Asset Value) 0.11% (0.02%)
Legacy 2 Class | 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 $ 1,658 $ (119)
Percent of Partners' Capital (Net Asset Value) 0.50% (0.04%)
Legacy 2 Class | 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 $ (321) $ 2,868
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.88%
Legacy 2 Class | 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) $ 114
Percent of Partners' Capital (Net Asset Value)   0.04%
Legacy 2 Class | 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 $ 1,015 $ 378
Percent of Partners' Capital (Net Asset Value) 0.31% 0.11%
Legacy 2 Class | 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 $ 234 $ (15)
Percent of Partners' Capital (Net Asset Value) 0.07%  
Legacy 2 Class | 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 $ 1,188 $ (760)
Percent of Partners' Capital (Net Asset Value) 0.36% (0.23%)
Legacy 2 Class | 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 $ (1,373) $ 2,053
Legacy 2 Class | Open long contracts | Futures Contracts | Foreign Futures Positions | Agriculturals    
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts   $ 21
Percent of Partners' Capital (Net Asset Value)   0.01%
Legacy 2 Class | 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   $ 23
Percent of Partners' Capital (Net Asset Value)   0.01%
Legacy 2 Class | 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 $ (1,300) $ 3,211
Percent of Partners' Capital (Net Asset Value) (0.39%) 0.99%
Legacy 2 Class | 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 $ (371) $ (514)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.16%)
Legacy 2 Class | 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 $ 298 $ (688)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.21%)
Legacy 2 Class | 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 $ (24) $ 81
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.03%
Legacy 2 Class | 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 $ 15,685 $ 8,067
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Legacy 2 Class | 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 $ (3,164)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Legacy 2 Class | 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   $ (2,487)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Legacy 2 Class | 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 $ 18,849 $ 10,554
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
Legacy 2 Class | 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 $ (1,933) $ 2,522
Percent of Partners' Capital (Net Asset Value) (0.59%) 0.77%
Legacy 2 Class | 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 $ (1,600) $ 2,776
Percent of Partners' Capital (Net Asset Value) (0.49%) 0.85%
Legacy 2 Class | 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 $ (1,779) $ 1,322
Legacy 2 Class | 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 $ (111) $ 483
Percent of Partners' Capital (Net Asset Value) (0.03%) 0.15%
Legacy 2 Class | 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 $ (327) $ 197
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.06%
Legacy 2 Class | 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 $ (1,221) $ 885
Percent of Partners' Capital (Net Asset Value) (0.37%) 0.27%
Legacy 2 Class | 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 $ 8 $ (809)
Percent of Partners' Capital (Net Asset Value)   (0.25%)
Legacy 2 Class | 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 (16) $ (58)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Legacy 2 Class | 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 5 $ 26
Percent of Partners' Capital (Net Asset Value)   0.01%
Legacy 2 Class | 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 $ 36 $ 553
Percent of Partners' Capital (Net Asset Value) 0.01% 0.17%
Legacy 2 Class | 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 $ (153) $ 45
Percent of Partners' Capital (Net Asset Value) (0.04%) 0.01%
Legacy 2 Class | 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 $ 179 $ 1,454
Legacy 2 Class | 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   2
Legacy 2 Class | 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   13
Legacy 2 Class | 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 $ 178 $ (87)
Percent of Partners' Capital (Net Asset Value) 0.05% (0.03%)
Legacy 2 Class | Open short contracts | Futures Contracts | Foreign Futures Positions | Metals    
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts $ (6) $ 1,220
Percent of Partners' Capital (Net Asset Value)   0.38%
Legacy 2 Class | 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   $ (21)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Legacy 2 Class | 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 7 $ 327
Percent of Partners' Capital (Net Asset Value)   0.10%
Legacy 2 Class | 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 $ (333) $ (254)
Percent of Partners' Capital (Net Asset Value) (0.10%) (0.08%)
Legacy 2 Class | 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 $ 17,403 $ 15,105
Percent of Partners' Capital (Net Asset Value) 5.33% 4.64%
Legacy 2 Class | 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 $ 2,075 $ 7,211
Percent of Partners' Capital (Net Asset Value) 0.63% 2.21%
Legacy 2 Class | 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 $ 3,269 $ 3,704
Legacy 2 Class | 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 $ 804 $ 462
Percent of Partners' Capital (Net Asset Value) 0.25% 0.14%
Legacy 2 Class | 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 $ 33 $ 134
Percent of Partners' Capital (Net Asset Value) 0.01% 0.04%
Legacy 2 Class | 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 $ 437 $ 766
Percent of Partners' Capital (Net Asset Value) 0.13% 0.23%
Legacy 2 Class | 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 $ (313) $ 2,059
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.63%
Legacy 2 Class | 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 $ (17) $ 56
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.02%
Legacy 2 Class | 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 $ 1,020 $ 404
Percent of Partners' Capital (Net Asset Value) 0.31% 0.12%
Legacy 2 Class | 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 $ 270 $ 538
Percent of Partners' Capital (Net Asset Value) 0.08% 0.17%
Legacy 2 Class | 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 $ 1,035 $ (715)
Percent of Partners' Capital (Net Asset Value) 0.32% (0.22%)
Legacy 2 Class | 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 $ (1,194) $ 3,507
Legacy 2 Class | 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   $ 23
Percent of Partners' Capital (Net Asset Value)   0.01%
Legacy 2 Class | 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   $ 36
Percent of Partners' Capital (Net Asset Value)   0.01%
Legacy 2 Class | 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 $ (1,122) $ 3,124
Percent of Partners' Capital (Net Asset Value) (0.34%) 0.96%
Legacy 2 Class | 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 $ (377) $ 706
Percent of Partners' Capital (Net Asset Value) (0.11%) 0.22%
Legacy 2 Class | 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   $ (21)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Legacy 2 Class | 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 $ 305 $ (361)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.11%)
Legacy 2 Class | 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 $ (357) $ (173)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.05%)
Legacy 2 Class | 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 $ 15,685 $ 8,067
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Legacy 2 Class | 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 $ (3,164)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Legacy 2 Class | 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   $ (2,487)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Legacy 2 Class | 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 $ 18,849 $ 10,554
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
Global 1 Class | 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 $ 924,224 $ 745,239
Percent of Partners' Capital (Net Asset Value) 5.92% 3.87%
Global 1 Class | 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 $ 175,728 $ 262,616
Percent of Partners' Capital (Net Asset Value) 1.12% 1.36%
Global 1 Class | 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 $ 241,340 $ 141,009
Global 1 Class | 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 $ 43,740 $ (1,266)
Percent of Partners' Capital (Net Asset Value) 0.28% (0.01%)
Global 1 Class | 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 $ 17,222 $ (3,743)
Percent of Partners' Capital (Net Asset Value) 0.11% (0.02%)
Global 1 Class | 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 $ 79,256 $ (7,036)
Percent of Partners' Capital (Net Asset Value) 0.50% (0.04%)
Global 1 Class | 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 $ (15,320) $ 169,869
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.88%
Global 1 Class | 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 $ (59) $ 6,723
Percent of Partners' Capital (Net Asset Value)   0.03%
Global 1 Class | 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 $ 48,520 $ 22,372
Percent of Partners' Capital (Net Asset Value) 0.31% 0.11%
Global 1 Class | 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 $ 11,182 $ (899)
Percent of Partners' Capital (Net Asset Value) 0.07%  
Global 1 Class | 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 $ 56,799 $ (45,011)
Percent of Partners' Capital (Net Asset Value) 0.36% (0.23%)
Global 1 Class | 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 $ (65,612) $ 121,607
Global 1 Class | 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   $ 1,225
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 1 Class | 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   $ 1,389
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 1 Class | 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 $ (62,132) $ 190,198
Percent of Partners' Capital (Net Asset Value) (0.39%) 0.99%
Global 1 Class | 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 $ (17,738) $ (30,467)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.16%)
Global 1 Class | 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 $ 14,258 $ (40,738)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.21%)
Global 1 Class | 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 $ (1,137) $ 4,796
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.03%
Global 1 Class | 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 $ 749,633 $ 477,827
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Global 1 Class | 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 $ (151,236)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Global 1 Class | 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   $ (147,287)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Global 1 Class | 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 $ 900,869 $ 625,114
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
Global 1 Class | 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 $ (92,473) $ 149,361
Percent of Partners' Capital (Net Asset Value) (0.59%) 0.77%
Global 1 Class | 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 $ (76,563) $ 164,397
Percent of Partners' Capital (Net Asset Value) (0.49%) 0.85%
Global 1 Class | 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 $ (85,104) $ 78,213
Global 1 Class | 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 $ (5,367) $ 28,585
Percent of Partners' Capital (Net Asset Value) (0.03%) 0.15%
Global 1 Class | 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 $ (15,664) $ 11,651
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.06%
Global 1 Class | 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 $ (58,341) $ 52,405
Percent of Partners' Capital (Net Asset Value) (0.37%) 0.27%
Global 1 Class | 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 $ 370 $ (47,930)
Percent of Partners' Capital (Net Asset Value)   (0.25%)
Global 1 Class | 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 (759) $ (3,453)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Global 1 Class | 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 239 $ 1,519
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 1 Class | 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 $ 1,740 $ 32,750
Percent of Partners' Capital (Net Asset Value) 0.01% 0.17%
Global 1 Class | 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 $ (7,322) $ 2,686
Percent of Partners' Capital (Net Asset Value) (0.04%) 0.01%
Global 1 Class | 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 $ 8,541 $ 86,184
Global 1 Class | 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   138
Global 1 Class | 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   768
Global 1 Class | 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 $ 8,505 $ (5,136)
Percent of Partners' Capital (Net Asset Value) 0.05% (0.03%)
Global 1 Class | 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 $ (275) $ 72,273
Percent of Partners' Capital (Net Asset Value)   0.38%
Global 1 Class | 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   $ (1,226)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Global 1 Class | 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 311 $ 19,367
Percent of Partners' Capital (Net Asset Value)   0.10%
Global 1 Class | 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 $ (15,910) $ (15,036)
Percent of Partners' Capital (Net Asset Value) (0.10%) (0.08%)
Global 1 Class | 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 $ 831,751 $ 894,600
Percent of Partners' Capital (Net Asset Value) 5.33% 4.64%
Global 1 Class | 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 $ 99,165 $ 427,013
Percent of Partners' Capital (Net Asset Value) 0.63% 2.21%
Global 1 Class | 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 $ 156,236 $ 219,222
Global 1 Class | 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 $ 38,373 $ 27,319
Percent of Partners' Capital (Net Asset Value) 0.25% 0.14%
Global 1 Class | 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 $ 1,558 $ 7,908
Percent of Partners' Capital (Net Asset Value) 0.01% 0.04%
Global 1 Class | 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 $ 20,915 $ 45,369
Percent of Partners' Capital (Net Asset Value) 0.13% 0.23%
Global 1 Class | 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 $ (14,950) $ 121,939
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.63%
Global 1 Class | 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 $ (818) $ 3,270
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.02%
Global 1 Class | 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 $ 48,759 $ 23,891
Percent of Partners' Capital (Net Asset Value) 0.31% 0.12%
Global 1 Class | 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 $ 12,922 $ 31,851
Percent of Partners' Capital (Net Asset Value) 0.08% 0.17%
Global 1 Class | 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 $ 49,477 $ (42,325)
Percent of Partners' Capital (Net Asset Value) 0.32% (0.22%)
Global 1 Class | 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 $ (57,071) $ 207,791
Global 1 Class | 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   $ 1,363
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 1 Class | 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   $ 2,157
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 1 Class | 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 $ (53,627) $ 185,062
Percent of Partners' Capital (Net Asset Value) (0.34%) 0.96%
Global 1 Class | 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 $ (18,013) $ 41,806
Percent of Partners' Capital (Net Asset Value) (0.11%) 0.22%
Global 1 Class | 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   $ (1,226)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Global 1 Class | 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 $ 14,569 $ (21,371)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.11%)
Global 1 Class | 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 $ (17,047) $ (10,240)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.05%)
Global 1 Class | 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 $ 749,633 $ 477,827
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Global 1 Class | 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 $ (151,236)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Global 1 Class | 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   $ (147,287)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Global 1 Class | 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 $ 900,869 $ 625,114
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
Global 2 Class | 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 $ 40,952 $ 28,430
Percent of Partners' Capital (Net Asset Value) 5.92% 3.87%
Global 2 Class | 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 $ 7,786 $ 10,019
Percent of Partners' Capital (Net Asset Value) 1.12% 1.36%
Global 2 Class | 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 $ 10,693 $ 5,379
Global 2 Class | 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 $ 1,938 $ (48)
Percent of Partners' Capital (Net Asset Value) 0.28% (0.01%)
Global 2 Class | 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 $ 763 $ (143)
Percent of Partners' Capital (Net Asset Value) 0.11% (0.02%)
Global 2 Class | 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 $ 3,512 $ (268)
Percent of Partners' Capital (Net Asset Value) 0.50% (0.04%)
Global 2 Class | 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 $ (679) $ 6,480
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.88%
Global 2 Class | 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 $ (3) $ 256
Percent of Partners' Capital (Net Asset Value)   0.03%
Global 2 Class | 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 $ 2,150 $ 853
Percent of Partners' Capital (Net Asset Value) 0.31% 0.11%
Global 2 Class | 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 $ 495 $ (34)
Percent of Partners' Capital (Net Asset Value) 0.07%  
Global 2 Class | 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 $ 2,517 $ (1,717)
Percent of Partners' Capital (Net Asset Value) 0.36% (0.23%)
Global 2 Class | 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 $ (2,907) $ 4,640
Global 2 Class | 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   $ 47
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 2 Class | 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]   $ 53
Percent of Partners' Capital (Net Asset Value) [1]   0.01%
Global 2 Class | 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 $ (2,753) $ 7,256
Percent of Partners' Capital (Net Asset Value) (0.39%) 0.99%
Global 2 Class | 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 $ (786) $ (1,162)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.16%)
Global 2 Class | 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 $ 632 $ (1,554)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.21%)
Global 2 Class | 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 $ (50) $ 183
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.03%
Global 2 Class | 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 $ 33,216 $ 18,228
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Global 2 Class | 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 $ (6,701)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Global 2 Class | 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   $ (5,619)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Global 2 Class | 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 $ 39,917 $ 23,847
Percent of Partners' Capital (Net Asset Value) 5.78% 3.25%
Global 2 Class | 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 $ (4,097) $ 5,695
Percent of Partners' Capital (Net Asset Value) (0.59%) 0.77%
Global 2 Class | 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 $ (3,392) $ 6,269
Percent of Partners' Capital (Net Asset Value) (0.49%) 0.85%
Global 2 Class | 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 $ (3,771) $ 2,982
Global 2 Class | 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 $ (238) $ 1,090
Percent of Partners' Capital (Net Asset Value) (0.03%) 0.15%
Global 2 Class | 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 $ (694) $ 444
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.06%
Global 2 Class | 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 $ (2,585) $ 1,999
Percent of Partners' Capital (Net Asset Value) (0.37%) 0.27%
Global 2 Class | 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 $ 16 $ (1,828)
Percent of Partners' Capital (Net Asset Value)   (0.25%)
Global 2 Class | 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 (34) $ (132)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Global 2 Class | 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 11 $ 58
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 2 Class | 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 $ 77 $ 1,249
Percent of Partners' Capital (Net Asset Value) 0.01% 0.17%
Global 2 Class | 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 $ (324) $ 102
Percent of Partners' Capital (Net Asset Value) (0.04%) 0.01%
Global 2 Class | 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 $ 379 $ 3,287
Global 2 Class | 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   5
Global 2 Class | 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]   29
Global 2 Class | 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 $ 377 $ (196)
Percent of Partners' Capital (Net Asset Value) 0.05% (0.03%)
Global 2 Class | 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 $ (12) $ 2,757
Percent of Partners' Capital (Net Asset Value)   0.38%
Global 2 Class | 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   $ (47)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Global 2 Class | 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 14 $ 739
Percent of Partners' Capital (Net Asset Value)   0.10%
Global 2 Class | 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 $ (705) $ (574)
Percent of Partners' Capital (Net Asset Value) (0.10%) (0.08%)
Global 2 Class | 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 $ 36,855 $ 34,125
Percent of Partners' Capital (Net Asset Value) 5.33% 4.64%
Global 2 Class | 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 $ 4,394 $ 16,288
Percent of Partners' Capital (Net Asset Value) 0.63% 2.21%
Global 2 Class | 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 $ 6,922 $ 8,361
Global 2 Class | 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 $ 1,700 $ 1,042
Percent of Partners' Capital (Net Asset Value) 0.25% 0.14%
Global 2 Class | 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 $ 69 $ 301
Percent of Partners' Capital (Net Asset Value) 0.01% 0.04%
Global 2 Class | 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 $ 927 $ 1,731
Percent of Partners' Capital (Net Asset Value) 0.13% 0.23%
Global 2 Class | 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 $ (663) $ 4,652
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.63%
Global 2 Class | 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 $ (37) $ 124
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.02%
Global 2 Class | 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 $ 2,161 $ 911
Percent of Partners' Capital (Net Asset Value) 0.31% 0.12%
Global 2 Class | 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 $ 572 $ 1,215
Percent of Partners' Capital (Net Asset Value) 0.08% 0.17%
Global 2 Class | 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 $ 2,193 $ (1,615)
Percent of Partners' Capital (Net Asset Value) 0.32% (0.22%)
Global 2 Class | 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 $ (2,528) $ 7,927
Global 2 Class | 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   $ 52
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 2 Class | 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]   $ 82
Percent of Partners' Capital (Net Asset Value) [1]   0.01%
Global 2 Class | 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 $ (2,376) $ 7,060
Percent of Partners' Capital (Net Asset Value) (0.34%) 0.96%
Global 2 Class | 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 $ (798) $ 1,595
Percent of Partners' Capital (Net Asset Value) (0.11%) 0.22%
Global 2 Class | 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   $ (47)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Global 2 Class | 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 $ 646 $ (815)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.11%)
Global 2 Class | 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 $ (755) $ (391)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.05%)
Global 2 Class | 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 $ 33,216 $ 18,228
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Global 2 Class | 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 $ (6,701)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Global 2 Class | 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   $ (5,619)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Global 2 Class | 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 $ 39,917 $ 23,847
Percent of Partners' Capital (Net Asset Value) 5.78% 3.25%
Global 3 Class | 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 $ 19,156 $ 24,076
Percent of Partners' Capital (Net Asset Value) 5.92% 3.87%
Global 3 Class | 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 $ 3,643 $ 8,485
Percent of Partners' Capital (Net Asset Value) 1.12% 1.36%
Global 3 Class | Open long contracts | Futures Contracts | U.S. Futures Positions    
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts $ 5,003 $ 4,556
Global 3 Class | 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 $ 907 $ (41)
Percent of Partners' Capital (Net Asset Value) 0.28% (0.01%)
Global 3 Class | 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 $ 357 $ (121)
Percent of Partners' Capital (Net Asset Value) 0.11% (0.02%)
Global 3 Class | 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 $ 1,643 $ (227)
Percent of Partners' Capital (Net Asset Value) 0.50% (0.04%)
Global 3 Class | 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 $ (318) $ 5,488
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.88%
Global 3 Class | 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) $ 217
Percent of Partners' Capital (Net Asset Value)   0.03%
Global 3 Class | 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 $ 1,006 $ 723
Percent of Partners' Capital (Net Asset Value) 0.31% 0.11%
Global 3 Class | 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 $ 232 $ (29)
Percent of Partners' Capital (Net Asset Value) 0.07%  
Global 3 Class | 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 $ 1,177 $ (1,454)
Percent of Partners' Capital (Net Asset Value) 0.36% (0.23%)
Global 3 Class | 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 $ (1,360) $ 3,929
Global 3 Class | 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   $ 40
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 3 Class | 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   $ 45
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 3 Class | 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 $ (1,288) $ 6,144
Percent of Partners' Capital (Net Asset Value) (0.39%) 0.99%
Global 3 Class | 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 $ (368) $ (984)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.16%)
Global 3 Class | 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 $ 296 $ (1,316)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.21%)
Global 3 Class | 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 $ (24) $ 155
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.03%
Global 3 Class | 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 $ 15,537 $ 15,436
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Global 3 Class | 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 $ (3,135)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Global 3 Class | 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   $ (4,758)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Global 3 Class | 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 $ 18,672 $ 20,194
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
Global 3 Class | 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 $ (1,917) $ 4,824
Percent of Partners' Capital (Net Asset Value) (0.59%) 0.77%
Global 3 Class | 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 $ (1,588) $ 5,310
Percent of Partners' Capital (Net Asset Value) (0.49%) 0.85%
Global 3 Class | 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 $ (1,764) $ 2,526
Global 3 Class | 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 $ (111) $ 923
Percent of Partners' Capital (Net Asset Value) (0.03%) 0.15%
Global 3 Class | 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 $ (325) $ 376
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.06%
Global 3 Class | 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 $ (1,209) $ 1,693
Percent of Partners' Capital (Net Asset Value) (0.37%) 0.27%
Global 3 Class | 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 $ 8 $ (1,548)
Percent of Partners' Capital (Net Asset Value)   (0.25%)
Global 3 Class | 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 (16) $ (112)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Global 3 Class | 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 5 $ 49
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 3 Class | 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 $ 36 $ 1,058
Percent of Partners' Capital (Net Asset Value) 0.01% 0.17%
Global 3 Class | 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 $ (152) $ 87
Percent of Partners' Capital (Net Asset Value) (0.04%) 0.01%
Global 3 Class | 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 $ 176 $ 2,784
Global 3 Class | 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   4
Global 3 Class | 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   25
Global 3 Class | 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 $ 176 $ (166)
Percent of Partners' Capital (Net Asset Value) 0.05% (0.03%)
Global 3 Class | Open short contracts | Futures Contracts | Foreign Futures Positions | Metals    
Unrealized gain/(loss), percent of partners' capital (net asset value), face value and fair value of Investments Owned    
Net unrealized gain/(loss) on open contracts $ (6) $ 2,335
Percent of Partners' Capital (Net Asset Value)   0.38%
Global 3 Class | 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   $ (40)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Global 3 Class | 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 6 $ 626
Percent of Partners' Capital (Net Asset Value)   0.10%
Global 3 Class | 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 $ (329) $ (486)
Percent of Partners' Capital (Net Asset Value) (0.10%) (0.08%)
Global 3 Class | 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 $ 17,239 $ 28,900
Percent of Partners' Capital (Net Asset Value) 5.33% 4.64%
Global 3 Class | 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 $ 2,055 $ 13,795
Percent of Partners' Capital (Net Asset Value) 0.63% 2.21%
Global 3 Class | 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 $ 3,239 $ 7,082
Global 3 Class | 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 $ 796 $ 882
Percent of Partners' Capital (Net Asset Value) 0.25% 0.14%
Global 3 Class | 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 $ 32 $ 255
Percent of Partners' Capital (Net Asset Value) 0.01% 0.04%
Global 3 Class | 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 $ 434 $ 1,466
Percent of Partners' Capital (Net Asset Value) 0.13% 0.23%
Global 3 Class | 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 $ (310) $ 3,940
Percent of Partners' Capital (Net Asset Value) (0.10%) 0.63%
Global 3 Class | 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 $ (17) $ 105
Percent of Partners' Capital (Net Asset Value) (0.01%) 0.02%
Global 3 Class | 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 $ 1,011 $ 772
Percent of Partners' Capital (Net Asset Value) 0.31% 0.12%
Global 3 Class | 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 $ 268 $ 1,029
Percent of Partners' Capital (Net Asset Value) 0.08% 0.17%
Global 3 Class | 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 $ 1,025 $ (1,367)
Percent of Partners' Capital (Net Asset Value) 0.32% (0.22%)
Global 3 Class | 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 $ (1,184) $ 6,713
Global 3 Class | 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   $ 44
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 3 Class | 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   $ 70
Percent of Partners' Capital (Net Asset Value)   0.01%
Global 3 Class | 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 $ (1,112) $ 5,978
Percent of Partners' Capital (Net Asset Value) (0.34%) 0.96%
Global 3 Class | 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 $ (374) $ 1,351
Percent of Partners' Capital (Net Asset Value) (0.11%) 0.22%
Global 3 Class | 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   $ (40)
Percent of Partners' Capital (Net Asset Value)   (0.01%)
Global 3 Class | 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 $ 302 $ (690)
Percent of Partners' Capital (Net Asset Value) 0.09% (0.11%)
Global 3 Class | 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 $ (353) $ (331)
Percent of Partners' Capital (Net Asset Value) (0.11%) (0.05%)
Global 3 Class | 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 $ 15,537 $ 15,436
Percent of Partners' Capital (Net Asset Value) 4.81% 2.48%
Global 3 Class | 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 $ (3,135)  
Percent of Partners' Capital (Net Asset Value) (0.97%)  
Global 3 Class | 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   $ (4,758)
Percent of Partners' Capital (Net Asset Value)   (0.76%)
Global 3 Class | 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 $ 18,672 $ 20,194
Percent of Partners' Capital (Net Asset Value) 5.78% 3.24%
[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.