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Condensed Schedule of Investments (Parenthetical)	Sep. 30, 2020 USD ($)
Collateral Amount On Open Commodity Futures Contracts	$ 61,501,809
Cash Equivalents [Member] | Money Market Funds [Member] | Fidelity Investments Money Market Funds Government Portfolio [Member]
Investment Interest Rate	0.01%
Cash Equivalents [Member] | Money Market Funds [Member] | Goldman Sachs Financial Square Funds - Government Fund - Class FS [Member]
Investment Interest Rate	0.00%
Cash Equivalents [Member] | Money Market Funds [Member] | RBC U.S. Government Money Market Fund - Institutional Share Class [Member]
Investment Interest Rate	0.03%

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- Definition

The collateral amount on open future contracts.

+ References

No definition available.

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- Definition

Rate of interest on investment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563

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