Schedule of Investments (Unaudited) - Futures Contracts | 6 Months Ended | 12 Months Ended |
Jun. 30, 2019USD ($)Contract | Dec. 31, 2018USD ($)Contract |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Value | | $ 423,539,861 | $ 499,957,015 |
Long | Futures [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Value | [1] | (5,205,386) | (17,860,885) |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ (5,205,386) | $ (17,860,885) |
Long | Futures [Member] | Corn [Member] | CBOT [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Number of Contracts | Contract | | 2,767 | 3,156 |
Commodity Futures Contracts, Expiration Date | | Sep. 30, 2019 | Sep. 30, 2019 |
Commodity Futures Contracts, Notional Value | | $ 58,764,162 | $ 62,094,300 |
Commodity Futures Contracts, Value | [1] | 2,508,402 | (2,228,968) |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ 2,508,402 | $ (2,228,968) |
Long | Futures [Member] | Soybean [Member] | CBOT [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Number of Contracts | Contract | | 1,191 | 1,359 |
Commodity Futures Contracts, Expiration Date | | Nov. 30, 2019 | Nov. 30, 2019 |
Commodity Futures Contracts, Notional Value | | $ 54,964,650 | $ 63,550,237 |
Commodity Futures Contracts, Value | [1] | (548,103) | 267,411 |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ (548,103) | $ 267,411 |
Long | Futures [Member] | Wheat [Member] | CBOT [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Number of Contracts | Contract | | 951 | 1,172 |
Commodity Futures Contracts, Expiration Date | | Jul. 31, 2020 | Jul. 31, 2019 |
Commodity Futures Contracts, Notional Value | | $ 25,997,962 | $ 30,384,100 |
Commodity Futures Contracts, Value | [1] | 130,747 | (4,100,713) |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ 130,747 | $ (4,100,713) |
Long | Futures [Member] | Wheat KCB [Member] | CBOT [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Number of Contracts | Contract | | 869 | 1,163 |
Commodity Futures Contracts, Expiration Date | | Jul. 31, 2020 | Jul. 31, 2019 |
Commodity Futures Contracts, Notional Value | | $ 22,594,000 | $ 29,801,875 |
Commodity Futures Contracts, Value | [1] | (531,937) | (5,459,111) |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ (531,937) | $ (5,459,111) |
Long | Futures [Member] | Feeder Cattle [Member] | CME SWAPS MARKETS (CME) [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Number of Contracts | Contract | | 240 | 293 |
Commodity Futures Contracts, Expiration Date | | Aug. 31, 2019 | Mar. 31, 2019 |
Commodity Futures Contracts, Notional Value | | $ 16,422,000 | $ 21,498,875 |
Commodity Futures Contracts, Value | [1] | (2,327,837) | 644,019 |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ (2,327,837) | $ 644,019 |
Long | Futures [Member] | Lean Hogs [Member] | CME SWAPS MARKETS (CME) [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Number of Contracts | Contract | | 1,075 | 1,755 |
Commodity Futures Contracts, Expiration Date | | Aug. 31, 2019 | Feb. 28, 2019 |
Commodity Futures Contracts, Notional Value | | $ 32,680,000 | $ 42,804,450 |
Commodity Futures Contracts, Value | [1] | (3,830,536) | (640,916) |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ (3,830,536) | $ (640,916) |
Long | Futures [Member] | Live Cattle [Member] | CME SWAPS MARKETS (CME) [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Number of Contracts | Contract | | 1,268 | 1,320 |
Commodity Futures Contracts, Expiration Date | | Aug. 31, 2019 | Feb. 28, 2019 |
Commodity Futures Contracts, Notional Value | | $ 52,926,320 | $ 65,406,000 |
Commodity Futures Contracts, Value | [1] | (2,228,490) | 1,922,027 |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ (2,228,490) | $ 1,922,027 |
Long | Futures [Member] | Cocoa [Member] | ICE FUTURES U.S. [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Number of Contracts | Contract | | 2,133 | 2,454 |
Commodity Futures Contracts, Expiration Date | | Sep. 30, 2019 | Mar. 31, 2019 |
Commodity Futures Contracts, Notional Value | | $ 51,725,250 | $ 59,288,640 |
Commodity Futures Contracts, Value | [1] | (264,720) | 1,657,953 |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ (264,720) | $ 1,657,953 |
Long | Futures [Member] | Coffee [Member] | ICE FUTURES U.S. [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Number of Contracts | Contract | | 1,009 | 1,248 |
Commodity Futures Contracts, Expiration Date | | Sep. 30, 2019 | Mar. 31, 2019 |
Commodity Futures Contracts, Notional Value | | $ 41,413,144 | $ 47,665,800 |
Commodity Futures Contracts, Value | [1] | 2,163,734 | (8,353,460) |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ 2,163,734 | $ (8,353,460) |
Long | Futures [Member] | Cotton [Member] | ICE FUTURES U.S. [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Number of Contracts | Contract | | 305 | 350 |
Commodity Futures Contracts, Expiration Date | | Dec. 31, 2019 | Mar. 31, 2019 |
Commodity Futures Contracts, Notional Value | | $ 10,077,200 | $ 12,635,000 |
Commodity Futures Contracts, Value | [1] | (41,655) | (1,369,269) |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ (41,655) | $ (1,369,269) |
Long | Futures [Member] | Sugar [Member] | ICE FUTURES U.S. [Member] | | | |
Schedule of Investments [Line Items] | | | |
Commodity Futures Contracts, Number of Contracts | Contract | | 3,714 | 4,238 |
Commodity Futures Contracts, Expiration Date | | Oct. 31, 2019 | Sep. 30, 2019 |
Commodity Futures Contracts, Notional Value | | $ 52,495,162 | $ 59,474,397 |
Commodity Futures Contracts, Value | [1] | (234,991) | (199,858) |
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) | [1] | $ (234,991) | $ (199,858) |
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[1] | Unrealized Appreciation (Depreciation) and Value are presented above, net by contract. | |