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Condensed Schedule of Investments (Parenthetical)	6 Months Ended
	Jun. 30, 2021 USD ($)
Expiration date	June 30, 2021
Collateral Amount On Open Commodity Futures Contracts	$ 50,000,000
Cash Equivalents [Member] | Money Market Funds [Member] | Goldman Sachs Financial Square Government Fund Institutional Shares [Member]
Investment Interest Rate	0.03%
Cash Equivalents [Member] | Money Market Funds [Member] | Morgan Stanley Institutional Liquidity Funds Government Portfolio Institutional Shares [Member]
Investment Interest Rate	0.03%
Cash Equivalents [Member] | Money Market Funds [Member] | RBC U.S. Government Money Market Fund Institutional Shares [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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- Definition

The list of dates or date range within which the options may be exercised of the investment subject to option.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 5D
-Subparagraph (SX 210.12-13D(Footnote 8(d)))
-URI http://asc.fasb.org/extlink&oid=120401592&loc=SL120429264-123010

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 6
-Subparagraph (SX 210.12-14.4(b))
-URI http://asc.fasb.org/extlink&oid=120401592&loc=d3e611322-123010

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