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Schedule of Investments (Parenthetical) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2020
Collateral Amount On Open Commodity Futures Contracts | $ 83,410,316 | $ 97,539,600
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 2.05%, 1/02/2020 [Member] |  |
Interest rate | 2.05% |
Expiration date | 1/02/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 2.03%, 1/09/2020 [Member] |  |
Interest rate | 2.03% |
Expiration date | 1/09/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 2.01%, 1/16/2020 [Member] |  |
Interest rate | 2.01% |
Expiration date | 1/16/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 2.04%, 1/23/2020 [Member] |  |
Interest rate | 2.04% |
Expiration date | 1/23/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 2.02%, 1/30/2020 [Member] |  |
Interest rate | 2.02% |
Expiration date | 1/30/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.90%, 2/06/2020 [Member] |  |
Interest rate | 1.90% |
Expiration date | 2/06/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.87%, 2/13/2020 [Member] |  |
Interest rate | 1.87% |
Expiration date | 2/13/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.85%, 2/20/2020 [Member] |  |
Interest rate | 1.85% |
Expiration date | 2/20/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.85%, 2/27/2020 [Member] |  |
Interest rate | 1.85% |
Expiration date | 2/27/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.83%, 3/05/2020 [Member] |  |
Interest rate | 1.83% |
Expiration date | 3/05/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.84%, 3/19/2020 [Member] |  |
Interest rate | 1.84% |
Expiration date | 3/19/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.88%, 3/26/2020 [Member] |  |
Interest rate | 1.88% |
Expiration date | 3/26/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.70%, 4/02/2020 [Member] |  |
Interest rate | 1.70% |
Expiration date | 4/02/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.64%, 4/09/2020 [Member] |  |
Interest rate | 1.64% |
Expiration date | 4/09/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.60%, 4/16/2020 [Member] |  |
Interest rate | 1.60% |
Expiration date | 4/16/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.60%, 4/23/2020 [Member] |  |
Interest rate | 1.60% |
Expiration date | 4/23/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.59%, 4/30/2020 [Member] |  |
Interest rate | 1.59% |
Expiration date | 4/30/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.54%, 5/07/2020 [Member] |  |
Interest rate | 1.54% |
Expiration date | 5/07/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.55%, 5/14/2020 [Member] |  |
Interest rate | 1.55% |
Expiration date | 5/14/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.55%, 5/21/2020 [Member] |  |
Interest rate | 1.55% |
Expiration date | 5/21/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.58%, 5/28/2020 [Member] |  |
Interest rate | 1.58% |
Expiration date | 5/28/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.53%, 6/04/2020 [Member] |  |
Interest rate | 1.53% |
Expiration date | 6/04/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills, 1.53%, 6/11/2020 [Member] |  |
Interest rate | 1.53% |
Expiration date | 6/11/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills 1.54%, 6/18/2020 [Member] |  |
Interest rate | 1.54% |
Expiration date | 6/18/2020 |
United States Treasury Obligations [Member] | Cash Equivalents [Member] | U.S. Treasury Bills 1.57%, 6/25/2020 [Member] |  |
Interest rate | 1.57% |
Expiration date | 6/25/2020 |
Money Market Funds [Member] | Cash Equivalents [Member] | Fidelity Investments Money Market Funds Government Portfolio [Member] |  |
Interest rate |  | 0.01%
Money Market Funds [Member] | Cash Equivalents [Member] | RBC U.S. Government Money Market Fund - Institutional Share Class [Member] |  |
Interest rate |  | 0.02%

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