v3.26.1
Schedule of Investments (Parenthetical) - USD ($)
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Collateral amount on open commodity futures contracts   $ 2,660,560  
US      
Collateral amount on open commodity futures contracts     $ 3,293,620
US | NYMEX Natural Gas Futures NG January 2027 contracts, expiring December 2026 | Maximum      
Interest rate (in %)   0.005%  
US | United States - Money Market Funds | Dreyfus Institutional Preferred Government Money Market Fund - Institutional Shares, 3.60%      
Interest rate (in %) 3.60%    
US | United States - Money Market Funds | Morgan Stanley Institutional Liquidity Funds - Government Portfolio - Institutional Shares, 3.56%      
Interest rate (in %) 3.56%    
US | United States - Money Market Funds | Dreyfus Institutional Preferred Government Money Market Fund - Institutional Shares, 3.71%      
Interest rate (in %)   3.71%  
US | United States - Money Market Funds | Morgan Stanley Institutional Liquidity Funds - Government Portfolio - Institutional Shares, 3.69%      
Interest rate (in %)   3.69%