v3.26.1
Schedule of Investments (Unaudited) (Parenthetical) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Collateral amount on open commodity futures contracts $ 2,737,658 $ 2,660,560
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, 3.57%    
Interest rate (in %) 3.57%  
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%