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Assets and Condensed Schedule of Investments by Class of Units - Securities Owned by Class of Units (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Jul. 31, 2017
Securities owned      
Investments Owned, Cost $ 50,013,633 $ 60,715,159  
Investments Owned, Fair Value 50,080,807 60,736,458  
Grant Park Absolute Return Fund, Class I      
Securities owned      
Investments Owned, Cost     $ 7,300,000
Class A      
Securities owned      
Investments Owned, Cost 3,178,570 3,658,597  
Investments Owned, Fair Value 3,182,839 3,659,882  
Class B      
Securities owned      
Investments Owned, Cost 33,102,907 39,951,813  
Investments Owned, Fair Value 33,147,366 39,965,825  
Legacy 1 Class      
Securities owned      
Investments Owned, Cost 327,886 786,455  
Investments Owned, Fair Value 328,325 786,731  
Legacy 2 Class      
Securities owned      
Investments Owned, Cost 258,262 253,379  
Investments Owned, Fair Value 258,609 253,468  
Global 1 Class      
Securities owned      
Investments Owned, Cost 12,343,245 15,007,595  
Investments Owned, Fair Value 12,359,824 15,012,860  
Global 2 Class      
Securities owned      
Investments Owned, Cost 546,925 572,506  
Investments Owned, Fair Value 547,661 572,708  
Global 3 Class      
Securities owned      
Investments Owned, Cost 255,838 484,814  
Investments Owned, Fair Value 256,183 484,984  
Securities owned      
Securities owned      
Investments Owned, Cost 50,013,633 60,715,159  
Investments Owned, Fair Value $ 50,080,807 $ 60,736,458  
Percent of Partners' Capital (Net Asset Value) 79.26% 77.93%  
Securities owned | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Cost $ 31,501,260 $ 41,497,750  
Investments Owned, Fair Value $ 31,644,430 $ 41,635,179  
Percent of Partners' Capital (Net Asset Value) 50.08% 53.42%  
Securities owned | U.S. Treasury Bills | U.S. Government securities      
Securities owned      
Investments Owned, Face Value $ 13,500,000 $ 15,000,000  
Investments Owned, Rate of Return Range Minimum 1.50% 2.10%  
Investments Owned, Rate of Return Range Maximum 2.00% 2.70%  
Investments Owned, Cost $ 13,408,474 $ 14,699,357  
Investments Owned, Fair Value $ 13,431,977 $ 14,752,579  
Percent of Partners' Capital (Net Asset Value) 21.26% 18.93%  
Securities owned | Federal Agricultural Mortgage Corp. | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value   $ 2,500,000  
Investments Owned, Rate of Return   1.10%  
Investments Owned, Fair Value   $ 2,512,825  
Percent of Partners' Capital (Net Asset Value)   3.22%  
Securities owned | Federal Farm Credit Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 17,500,000 $ 23,000,000  
Investments Owned, Rate of Return Range Minimum 1.60% 1.20%  
Investments Owned, Rate of Return Range Maximum 2.20% 1.30%  
Investments Owned, Fair Value $ 17,594,846 $ 23,067,965  
Percent of Partners' Capital (Net Asset Value) 27.85% 29.60%  
Securities owned | Federal Home Loan Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 14,000,000 $ 16,000,000  
Investments Owned, Rate of Return Range Minimum 1.80% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.30% 1.50%  
Investments Owned, Fair Value $ 14,049,584 $ 16,054,389  
Percent of Partners' Capital (Net Asset Value) 22.23% 20.60%  
Securities owned | U.S. Exchange Traded Funds      
Securities owned      
Investments Owned, Cost $ 5,103,899 $ 4,518,052  
Investments Owned, Fair Value $ 5,004,400 $ 4,348,700  
Percent of Partners' Capital (Net Asset Value) 7.92% 5.58%  
Securities owned | Highland/iBoxx Senior Loan ETF      
Securities owned      
Investments Owned, Shares 85,000 75,000  
Investments Owned, Fair Value $ 1,490,900 $ 1,288,500  
Percent of Partners' Capital (Net Asset Value) 2.36% 1.65%  
Securities owned | PIMCO Enhanced Short Maturity Active ETF      
Securities owned      
Investments Owned, Shares 20,000 20,000  
Investments Owned, Fair Value $ 2,031,800 $ 2,019,000  
Percent of Partners' Capital (Net Asset Value) 3.22% 2.59%  
Securities owned | SPDR Bloomberg Barclays Short Term High Yield Bond ETF      
Securities owned      
Investments Owned, Shares 55,000 40,000  
Investments Owned, Fair Value $ 1,481,700 $ 1,041,200  
Percent of Partners' Capital (Net Asset Value) 2.34% 1.34%  
Securities owned | Class A      
Securities owned      
Investments Owned, Fair Value $ 3,182,839 $ 3,659,882  
Percent of Partners' Capital (Net Asset Value) 79.26% 77.93%  
Securities owned | Class A | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Cost $ 2,002,033 $ 2,500,587  
Investments Owned, Fair Value $ 2,011,132 $ 2,508,869  
Percent of Partners' Capital (Net Asset Value) 50.08% 53.42%  
Securities owned | Class A | U.S. Treasury Bills | U.S. Government securities      
Securities owned      
Investments Owned, Face Value $ 857,980 $ 903,876  
Investments Owned, Rate of Return Range Minimum 1.50% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.00% 2.70%  
Investments Owned, Cost $ 852,163 $ 885,759  
Investments Owned, Fair Value $ 853,657 $ 888,967  
Percent of Partners' Capital (Net Asset Value) 21.26% 18.93%  
Securities owned | Class A | Federal Agricultural Mortgage Corp. | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value   $ 150,646  
Investments Owned, Rate of Return   1.10%  
Investments Owned, Fair Value   $ 151,419  
Percent of Partners' Capital (Net Asset Value)   3.22%  
Securities owned | Class A | Federal Farm Credit Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 1,112,196 $ 1,385,943  
Investments Owned, Rate of Return Range Minimum 1.60% 1.20%  
Investments Owned, Rate of Return Range Maximum 2.20% 1.30%  
Investments Owned, Fair Value $ 1,118,224 $ 1,390,038  
Percent of Partners' Capital (Net Asset Value) 27.85% 29.60%  
Securities owned | Class A | Federal Home Loan Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 889,757 $ 964,134  
Investments Owned, Rate of Return Range Minimum 1.80% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.30% 1.50%  
Investments Owned, Fair Value $ 892,908 $ 967,412  
Percent of Partners' Capital (Net Asset Value) 22.23% 20.60%  
Securities owned | Class A | U.S. Exchange Traded Funds      
Securities owned      
Investments Owned, Cost $ 324,374 $ 272,251  
Investments Owned, Fair Value $ 318,050 $ 262,046  
Percent of Partners' Capital (Net Asset Value) 7.92% 5.58%  
Securities owned | Class A | Highland/iBoxx Senior Loan ETF      
Securities owned      
Investments Owned, Shares 5,402 4,519  
Investments Owned, Fair Value $ 94,753 $ 77,643  
Percent of Partners' Capital (Net Asset Value) 2.36% 1.65%  
Securities owned | Class A | PIMCO Enhanced Short Maturity Active ETF      
Securities owned      
Investments Owned, Shares 1,271 1,205  
Investments Owned, Fair Value $ 129,129 $ 121,662  
Percent of Partners' Capital (Net Asset Value) 3.22% 2.59%  
Securities owned | Class A | SPDR Bloomberg Barclays Short Term High Yield Bond ETF      
Securities owned      
Investments Owned, Shares 3,495 2,410  
Investments Owned, Fair Value $ 94,168 $ 62,741  
Percent of Partners' Capital (Net Asset Value) 2.34% 1.34%  
Securities owned | Class B      
Securities owned      
Investments Owned, Fair Value $ 33,147,366 $ 39,965,825  
Percent of Partners' Capital (Net Asset Value) 79.26% 77.93%  
Securities owned | Class B | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Cost $ 20,849,980 $ 27,306,366  
Investments Owned, Fair Value $ 20,944,740 $ 27,396,795  
Percent of Partners' Capital (Net Asset Value) 50.08% 53.42%  
Securities owned | Class B | U.S. Treasury Bills | U.S. Government securities      
Securities owned      
Investments Owned, Face Value $ 8,935,347 $ 9,870,306  
Investments Owned, Rate of Return Range Minimum 1.50% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.00% 2.70%  
Investments Owned, Cost $ 8,874,770 $ 9,672,477  
Investments Owned, Fair Value $ 8,890,325 $ 9,707,497  
Percent of Partners' Capital (Net Asset Value) 21.26% 18.93%  
Securities owned | Class B | Federal Agricultural Mortgage Corp. | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value   $ 1,645,051  
Investments Owned, Rate of Return Range Minimum   1.10%  
Investments Owned, Fair Value   $ 1,653,490  
Percent of Partners' Capital (Net Asset Value)   3.22%  
Securities owned | Class B | Federal Farm Credit Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 11,582,859 $ 15,134,470  
Investments Owned, Rate of Return Range Minimum 1.60% 1.20%  
Investments Owned, Rate of Return Range Maximum 2.20% 1.30%  
Investments Owned, Fair Value $ 11,645,635 $ 15,179,191  
Percent of Partners' Capital (Net Asset Value) 27.85% 29.60%  
Securities owned | Class B | Federal Home Loan Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 9,266,286 $ 10,528,326  
Investments Owned, Rate of Return Range Minimum 1.80% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.30% 1.50%  
Investments Owned, Fair Value $ 9,299,105 $ 10,564,114  
Percent of Partners' Capital (Net Asset Value) 22.23% 20.60%  
Securities owned | Class B | U.S. Exchange Traded Funds      
Securities owned      
Investments Owned, Cost $ 3,378,157 $ 2,972,970  
Investments Owned, Fair Value $ 3,312,301 $ 2,861,533  
Percent of Partners' Capital (Net Asset Value) 7.92% 5.58%  
Securities owned | Class B | Highland/iBoxx Senior Loan ETF      
Securities owned      
Investments Owned, Shares 56,259 49,352  
Investments Owned, Fair Value $ 986,792 $ 847,859  
Percent of Partners' Capital (Net Asset Value) 2.36% 1.65%  
Securities owned | Class B | PIMCO Enhanced Short Maturity Active ETF      
Securities owned      
Investments Owned, Shares 13,238 13,160  
Investments Owned, Fair Value $ 1,344,804 $ 1,328,543  
Percent of Partners' Capital (Net Asset Value) 3.22% 2.59%  
Securities owned | Class B | SPDR Bloomberg Barclays Short Term High Yield Bond ETF      
Securities owned      
Investments Owned, Shares 36,404 26,321  
Investments Owned, Fair Value $ 980,705 $ 685,131  
Percent of Partners' Capital (Net Asset Value) 2.34% 1.34%  
Securities owned | Legacy 1 Class      
Securities owned      
Investments Owned, Fair Value $ 328,325 $ 786,731  
Percent of Partners' Capital (Net Asset Value) 79.26% 77.93%  
Securities owned | Legacy 1 Class | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Cost $ 206,520 $ 537,528  
Investments Owned, Fair Value $ 207,458 $ 539,309  
Percent of Partners' Capital (Net Asset Value) 50.08% 53.42%  
Securities owned | Legacy 1 Class | U.S. Treasury Bills | U.S. Government securities      
Securities owned      
Investments Owned, Face Value $ 88,505 $ 194,298  
Investments Owned, Rate of Return Range Minimum 1.50% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.00% 2.70%  
Investments Owned, Cost $ 87,905 $ 190,404  
Investments Owned, Fair Value $ 88,059 $ 191,093  
Percent of Partners' Capital (Net Asset Value) 21.26% 18.93%  
Securities owned | Legacy 1 Class | Federal Agricultural Mortgage Corp. | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value   $ 32,383  
Investments Owned, Rate of Return Range Minimum   1.10%  
Investments Owned, Fair Value   $ 32,549  
Percent of Partners' Capital (Net Asset Value)   3.22%  
Securities owned | Legacy 1 Class | Federal Farm Credit Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 114,729 $ 297,923  
Investments Owned, Rate of Return Range Minimum 1.60% 1.20%  
Investments Owned, Rate of Return Range Maximum 2.20% 1.30%  
Investments Owned, Fair Value $ 115,350 $ 298,804  
Percent of Partners' Capital (Net Asset Value) 27.85% 29.60%  
Securities owned | Legacy 1 Class | Federal Home Loan Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 91,783 $ 207,251  
Investments Owned, Rate of Return Range Minimum 1.80% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.30% 1.50%  
Investments Owned, Fair Value $ 92,108 $ 207,956  
Percent of Partners' Capital (Net Asset Value) 22.23% 20.60%  
Securities owned | Legacy 1 Class | U.S. Exchange Traded Funds      
Securities owned      
Investments Owned, Cost $ 33,461 $ 58,523  
Investments Owned, Fair Value $ 32,808 $ 56,329  
Percent of Partners' Capital (Net Asset Value) 7.92% 5.58%  
Securities owned | Legacy 1 Class | Highland/iBoxx Senior Loan ETF      
Securities owned      
Investments Owned, Shares 557 971  
Investments Owned, Fair Value $ 9,774 $ 16,690  
Percent of Partners' Capital (Net Asset Value) 2.36% 1.65%  
Securities owned | Legacy 1 Class | PIMCO Enhanced Short Maturity Active ETF      
Securities owned      
Investments Owned, Shares 131 259  
Investments Owned, Fair Value $ 13,320 $ 26,152  
Percent of Partners' Capital (Net Asset Value) 3.22% 2.59%  
Securities owned | Legacy 1 Class | SPDR Bloomberg Barclays Short Term High Yield Bond ETF      
Securities owned      
Investments Owned, Shares 361 518  
Investments Owned, Fair Value $ 9,714 $ 13,487  
Percent of Partners' Capital (Net Asset Value) 2.34% 1.34%  
Securities owned | Legacy 2 Class      
Securities owned      
Investments Owned, Fair Value $ 258,609 $ 253,468  
Percent of Partners' Capital (Net Asset Value) 79.26% 77.93%  
Securities owned | Legacy 2 Class | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Cost $ 162,667 $ 173,180  
Investments Owned, Fair Value $ 163,407 $ 173,754  
Percent of Partners' Capital (Net Asset Value) 50.08% 53.42%  
Securities owned | Legacy 2 Class | U.S. Treasury Bills | U.S. Government securities      
Securities owned      
Investments Owned, Face Value $ 69,712 $ 62,599  
Investments Owned, Rate of Return Range Minimum 1.50% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.00% 2.70%  
Investments Owned, Cost $ 69,239 $ 61,344  
Investments Owned, Fair Value $ 69,360 $ 61,566  
Percent of Partners' Capital (Net Asset Value) 21.26% 18.93%  
Securities owned | Legacy 2 Class | Federal Agricultural Mortgage Corp. | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value   $ 10,433  
Investments Owned, Rate of Return Range Minimum   1.10%  
Investments Owned, Fair Value   $ 10,487  
Percent of Partners' Capital (Net Asset Value)   3.22%  
Securities owned | Legacy 2 Class | Federal Farm Credit Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 90,367 $ 95,984  
Investments Owned, Rate of Return Range Minimum 1.60% 1.20%  
Investments Owned, Rate of Return Range Maximum 2.20% 1.30%  
Investments Owned, Fair Value $ 90,857 $ 96,268  
Percent of Partners' Capital (Net Asset Value) 27.85% 29.60%  
Securities owned | Legacy 2 Class | Federal Home Loan Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 72,294 $ 66,772  
Investments Owned, Rate of Return Range Minimum 1.80% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.30% 1.50%  
Investments Owned, Fair Value $ 72,550 $ 66,999  
Percent of Partners' Capital (Net Asset Value) 22.23% 20.60%  
Securities owned | Legacy 2 Class | U.S. Exchange Traded Funds      
Securities owned      
Investments Owned, Cost $ 26,356 $ 18,855  
Investments Owned, Fair Value $ 25,842 $ 18,148  
Percent of Partners' Capital (Net Asset Value) 7.92% 5.58%  
Securities owned | Legacy 2 Class | Highland/iBoxx Senior Loan ETF      
Securities owned      
Investments Owned, Shares 439 313  
Investments Owned, Fair Value $ 7,699 $ 5,377  
Percent of Partners' Capital (Net Asset Value) 2.36% 1.65%  
Securities owned | Legacy 2 Class | PIMCO Enhanced Short Maturity Active ETF      
Securities owned      
Investments Owned, Shares 103 83  
Investments Owned, Fair Value $ 10,492 $ 8,426  
Percent of Partners' Capital (Net Asset Value) 3.22% 2.59%  
Securities owned | Legacy 2 Class | SPDR Bloomberg Barclays Short Term High Yield Bond ETF      
Securities owned      
Investments Owned, Shares 284 167  
Investments Owned, Fair Value $ 7,651 $ 4,345  
Percent of Partners' Capital (Net Asset Value) 2.34% 1.34%  
Securities owned | Global 1 Class      
Securities owned      
Investments Owned, Fair Value $ 12,359,824 $ 15,012,860  
Percent of Partners' Capital (Net Asset Value) 79.26% 77.93%  
Securities owned | Global 1 Class | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Cost $ 7,774,436 $ 10,257,429  
Investments Owned, Fair Value $ 7,809,770 $ 10,291,399  
Percent of Partners' Capital (Net Asset Value) 50.08% 53.42%  
Securities owned | Global 1 Class | U.S. Treasury Bills | U.S. Government securities      
Securities owned      
Investments Owned, Face Value $ 3,331,768 $ 3,707,705  
Investments Owned, Rate of Return Range Minimum 1.50% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.00% 2.70%  
Investments Owned, Cost $ 3,309,179 $ 3,633,392  
Investments Owned, Fair Value $ 3,314,980 $ 3,646,548  
Percent of Partners' Capital (Net Asset Value) 21.26% 18.93%  
Securities owned | Global 1 Class | Federal Agricultural Mortgage Corp. | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value   $ 617,951  
Investments Owned, Rate of Return Range Minimum   1.10%  
Investments Owned, Fair Value   $ 621,121  
Percent of Partners' Capital (Net Asset Value)   3.22%  
Securities owned | Global 1 Class | Federal Farm Credit Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 4,318,958 $ 5,685,148  
Investments Owned, Rate of Return Range Minimum 1.60% 1.20%  
Investments Owned, Rate of Return Range Maximum 2.20% 1.30%  
Investments Owned, Fair Value $ 4,342,366 $ 5,701,948  
Percent of Partners' Capital (Net Asset Value) 27.85% 29.60%  
Securities owned | Global 1 Class | Federal Home Loan Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 3,455,167 $ 3,954,886  
Investments Owned, Rate of Return Range Minimum 1.80% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.30% 1.50%  
Investments Owned, Fair Value $ 3,467,404 $ 3,968,330  
Percent of Partners' Capital (Net Asset Value) 22.23% 20.60%  
Securities owned | Global 1 Class | U.S. Exchange Traded Funds      
Securities owned      
Investments Owned, Cost $ 1,259,630 $ 1,116,774  
Investments Owned, Fair Value $ 1,235,074 $ 1,074,913  
Percent of Partners' Capital (Net Asset Value) 7.92% 5.58%  
Securities owned | Global 1 Class | Highland/iBoxx Senior Loan ETF      
Securities owned      
Investments Owned, Shares 20,978 18,539  
Investments Owned, Fair Value $ 367,951 $ 318,492  
Percent of Partners' Capital (Net Asset Value) 2.36% 1.65%  
Securities owned | Global 1 Class | PIMCO Enhanced Short Maturity Active ETF      
Securities owned      
Investments Owned, Shares 4,936 4,944  
Investments Owned, Fair Value $ 501,443 $ 499,057  
Percent of Partners' Capital (Net Asset Value) 3.22% 2.59%  
Securities owned | Global 1 Class | SPDR Bloomberg Barclays Short Term High Yield Bond ETF      
Securities owned      
Investments Owned, Shares 13,574 9,887  
Investments Owned, Fair Value $ 365,680 $ 257,364  
Percent of Partners' Capital (Net Asset Value) 2.34% 1.34%  
Securities owned | Global 2 Class      
Securities owned      
Investments Owned, Fair Value $ 547,661 $ 572,708  
Percent of Partners' Capital (Net Asset Value) 79.26% 77.93%  
Securities owned | Global 2 Class | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Cost $ 344,483 $ 391,298  
Investments Owned, Fair Value $ 346,049 $ 392,594  
Percent of Partners' Capital (Net Asset Value) 50.08% 53.42%  
Securities owned | Global 2 Class | U.S. Treasury Bills | U.S. Government securities      
Securities owned      
Investments Owned, Face Value $ 147,630 $ 141,441  
Investments Owned, Rate of Return Range Minimum 1.50% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.00% 2.70%  
Investments Owned, Cost $ 146,628 $ 138,606  
Investments Owned, Fair Value $ 146,886 $ 139,108  
Percent of Partners' Capital (Net Asset Value) 21.26% 18.93%  
Securities owned | Global 2 Class | Federal Agricultural Mortgage Corp. | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value   $ 23,573  
Investments Owned, Rate of Return Range Minimum   1.10%  
Investments Owned, Fair Value   $ 23,694  
Percent of Partners' Capital (Net Asset Value)   3.22%  
Securities owned | Global 2 Class | Federal Farm Credit Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 191,372 $ 216,876  
Investments Owned, Rate of Return Range Minimum 1.60% 1.20%  
Investments Owned, Rate of Return Range Maximum 2.20% 1.30%  
Investments Owned, Fair Value $ 192,409 $ 217,517  
Percent of Partners' Capital (Net Asset Value) 27.85% 29.60%  
Securities owned | Global 2 Class | Federal Home Loan Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 153,097 $ 150,870  
Investments Owned, Rate of Return Range Minimum 1.80% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.30% 1.50%  
Investments Owned, Fair Value $ 153,640 $ 151,383  
Percent of Partners' Capital (Net Asset Value) 22.23% 20.60%  
Securities owned | Global 2 Class | U.S. Exchange Traded Funds      
Securities owned      
Investments Owned, Cost $ 55,814 $ 42,602  
Investments Owned, Fair Value $ 54,726 $ 41,006  
Percent of Partners' Capital (Net Asset Value) 7.92% 5.58%  
Securities owned | Global 2 Class | Highland/iBoxx Senior Loan ETF      
Securities owned      
Investments Owned, Shares 930 707  
Investments Owned, Fair Value $ 16,304 $ 12,150  
Percent of Partners' Capital (Net Asset Value) 2.36% 1.65%  
Securities owned | Global 2 Class | PIMCO Enhanced Short Maturity Active ETF      
Securities owned      
Investments Owned, Shares 219 189  
Investments Owned, Fair Value $ 22,219 $ 19,038  
Percent of Partners' Capital (Net Asset Value) 3.22% 2.59%  
Securities owned | Global 2 Class | SPDR Bloomberg Barclays Short Term High Yield Bond ETF      
Securities owned      
Investments Owned, Shares 601 377  
Investments Owned, Fair Value $ 16,203 $ 9,818  
Percent of Partners' Capital (Net Asset Value) 2.34% 1.34%  
Securities owned | Global 3 Class      
Securities owned      
Investments Owned, Fair Value $ 256,183 $ 484,984  
Percent of Partners' Capital (Net Asset Value) 79.26% 77.93%  
Securities owned | Global 3 Class | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Cost $ 161,141 $ 331,362  
Investments Owned, Fair Value $ 161,874 $ 332,459  
Percent of Partners' Capital (Net Asset Value) 50.08% 53.42%  
Securities owned | Global 3 Class | U.S. Treasury Bills | U.S. Government securities      
Securities owned      
Investments Owned, Face Value $ 69,058 $ 119,776  
Investments Owned, Rate of Return Range Minimum 1.50% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.00% 2.70%  
Investments Owned, Cost $ 68,590 $ 117,375  
Investments Owned, Fair Value $ 68,710 $ 117,800  
Percent of Partners' Capital (Net Asset Value) 21.26% 18.93%  
Securities owned | Global 3 Class | Federal Agricultural Mortgage Corp. | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value   $ 19,963  
Investments Owned, Rate of Return Range Minimum   1.10%  
Investments Owned, Fair Value   $ 20,065  
Percent of Partners' Capital (Net Asset Value)   3.22%  
Securities owned | Global 3 Class | Federal Farm Credit Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 89,519 $ 183,656  
Investments Owned, Rate of Return Range Minimum 1.60% 1.20%  
Investments Owned, Rate of Return Range Maximum 2.20% 1.30%  
Investments Owned, Fair Value $ 90,005 $ 184,199  
Percent of Partners' Capital (Net Asset Value) 27.85% 29.60%  
Securities owned | Global 3 Class | Federal Home Loan Banks | U.S. Government-sponsored enterprises      
Securities owned      
Investments Owned, Face Value $ 71,616 $ 127,761  
Investments Owned, Rate of Return Range Minimum 1.80% 1.10%  
Investments Owned, Rate of Return Range Maximum 2.30% 1.50%  
Investments Owned, Fair Value $ 71,869 $ 128,195  
Percent of Partners' Capital (Net Asset Value) 22.23% 20.60%  
Securities owned | Global 3 Class | U.S. Exchange Traded Funds      
Securities owned      
Investments Owned, Cost $ 26,107 $ 36,077  
Investments Owned, Fair Value $ 25,599 $ 34,725  
Percent of Partners' Capital (Net Asset Value) 7.92% 5.58%  
Securities owned | Global 3 Class | Highland/iBoxx Senior Loan ETF      
Securities owned      
Investments Owned, Shares 435 599  
Investments Owned, Fair Value $ 7,627 $ 10,289  
Percent of Partners' Capital (Net Asset Value) 2.36% 1.65%  
Securities owned | Global 3 Class | PIMCO Enhanced Short Maturity Active ETF      
Securities owned      
Investments Owned, Shares 102 160  
Investments Owned, Fair Value $ 10,393 $ 16,122  
Percent of Partners' Capital (Net Asset Value) 3.22% 2.59%  
Securities owned | Global 3 Class | SPDR Bloomberg Barclays Short Term High Yield Bond ETF      
Securities owned      
Investments Owned, Shares 281 319  
Investments Owned, Fair Value $ 7,579 $ 8,314  
Percent of Partners' Capital (Net Asset Value) 2.34% 1.34%