Schedule of Investments (Unaudited) - Futures Contracts	3 Months Ended	12 Months Ended
Mar. 31, 2023 USD ($) Contract	Dec. 31, 2022 USD ($) Contract
Schedule Of Investments [Line Items]
Commodity Futures Contracts, Value	$ 307,116,570	$ 309,779,647
Commodity Futures Contracts, Unrealized Appreciation (Depreciation)	(23,341,632)	(38,400,145)
Futures [Member] \| Long [Member]
Schedule Of Investments [Line Items]
Commodity Futures Contracts, Value	(23,341,632)	(37,973,647)
Commodity Futures Contracts, Unrealized Appreciation (Depreciation)	$ (23,341,632)	$ (37,973,647)
Futures [Member] \| Long [Member] \| LME Aluminum [Member]
Schedule Of Investments [Line Items]
Commodity Futures Contracts, Number of Contracts \| Contract	1,198	1,225
Commodity Futures Contracts, Expiration Date	May 31, 2023	May 30, 2023
Commodity Futures Contracts, Notional Value	$ 71,692,812	$ 73,346,875
Commodity Futures Contracts, Value	(17,753,002)	(24,812,824)
Commodity Futures Contracts, Unrealized Appreciation (Depreciation)	$ (17,753,002)	$ (24,812,824)
Futures [Member] \| Long [Member] \| LME Copper [Member]
Schedule Of Investments [Line Items]
Commodity Futures Contracts, Number of Contracts \| Contract	354	362
Commodity Futures Contracts, Expiration Date	May 31, 2023	May 31, 2023
Commodity Futures Contracts, Notional Value	$ 79,583,625	$ 75,773,388
Commodity Futures Contracts, Value	(4,804,691)	(13,587,321)
Commodity Futures Contracts, Unrealized Appreciation (Depreciation)	$ (4,804,691)	$ (13,587,321)
Futures [Member] \| Long [Member] \| LME Zinc [Member]
Schedule Of Investments [Line Items]
Commodity Futures Contracts, Number of Contracts \| Contract	1,001	1,024
Commodity Futures Contracts, Expiration Date	Aug. 31, 2023	Aug. 31, 2023
Commodity Futures Contracts, Notional Value	$ 72,972,000	$ 75,116,800
Commodity Futures Contracts, Value	(783,939)	426,498
Commodity Futures Contracts, Unrealized Appreciation (Depreciation)	$ (783,939)	$ 426,498

Settlement date of the forward contract indexed to issuer's equity, in YYYY-MM-DD format.

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