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Condensed Schedule of Investments (Parenthetical) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Investment, Period of Yield 7 days 7 days
Open Commodity Futures Contracts - Long    
Collateral amount on open futures contracts   $ 483,719,510
Open Futures Contracts, Long    
Collateral amount on open futures contracts $ 346,094,710  
Open OTC Commodity Swap Contracts    
Collateral amount on open futures contracts $ 13,580,000 $ 27,568,431
United States Money Market Funds    
Expiration date Mar. 31, 2024 Dec. 31, 2023
United States Money Market Funds | Cash Equivalents | Morgan Stanley Institutional Liquidity Funds - Government Portfolio - Institutional Shares, 4.12%#    
Investment interest rate 5.22% 5.27%