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Schedule of Investments (Unaudited) - Futures Contracts
9 Months Ended 12 Months Ended
Sep. 30, 2022
USD ($)
Contract
Dec. 31, 2021
USD ($)
Contract
Schedule Of Investments [Line Items]    
Commodity Futures Contracts, Value $ 416,397,278 $ 429,745,226
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) (82,594,821)  
Futures [Member] | Long [Member]    
Schedule Of Investments [Line Items]    
Commodity Futures Contracts, Value [1] (82,594,821) 51,567,124
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) [1] $ (82,594,821) $ 51,567,124
Futures [Member] | Long [Member] | LME Aluminum [Member]    
Schedule Of Investments [Line Items]    
Commodity Futures Contracts, Number of Contracts | Contract 1,768 2,363
Commodity Futures Contracts, Expiration Date May 31, 2023 May 31, 2022
Commodity Futures Contracts, Notional Value $ 97,339,450 $ 165,734,913
Commodity Futures Contracts, Value [1] (47,547,249) 22,900,724
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) [1] $ (47,547,249) $ 22,900,724
Futures [Member] | Long [Member] | LME Copper [Member]    
Schedule Of Investments [Line Items]    
Commodity Futures Contracts, Number of Contracts | Contract 477 643
Commodity Futures Contracts, Expiration Date May 31, 2023 May 31, 2022
Commodity Futures Contracts, Notional Value $ 89,419,613 $ 155,935,537
Commodity Futures Contracts, Value [1] (31,514,075) 7,321,119
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) [1] $ (31,514,075) $ 7,321,119
Futures [Member] | Long [Member] | LME Zinc [Member]    
Schedule Of Investments [Line Items]    
Commodity Futures Contracts, Number of Contracts | Contract 1,521 1,922
Commodity Futures Contracts, Expiration Date Aug. 31, 2023 Aug. 31, 2022
Commodity Futures Contracts, Notional Value $ 106,774,200 $ 165,532,250
Commodity Futures Contracts, Value [1] (3,533,497) 21,345,281
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) [1] $ (3,533,497) $ 21,345,281
[1] Unrealized Appreciation (Depreciation) and Value are presented above, net by contract.