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Summary of Significant Accounting Policies - Additional Information (Detail)
 12 Months Ended
Dec. 31, 2024
USD ($)
Segment
$ / shares
Dec. 31, 2023
USD ($)
$ / shares
Dec. 31, 2022
USD ($)
$ / shares
Summary Of Significant Accounting Policies [Line Items]      
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] true    
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false] true    
Accounting Standards Update [Extensible Enumeration] us-gaap:AccountingStandardsUpdate202307Member    
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description primarily through enhanced disclosures about significant segment expenses, allowing financial statement users to better understand the components of a segment's profit or loss and assess potential future cash flows for each reportable segment and the entity as a whole thereby enabling better understanding of how an entity's segments impact overall performance. The Fund represents a single operating segment. Subject to the oversight and, when applicable, approval of the Board of Managers, the Fund's Managing Owner acts as the Fund's chief operating decision maker (“CODM”), assessing performance and making decisions about resource allocation within the Fund. The CODM monitors the operating results as a whole and the Fund's long-term strategic asset allocation is determined in accordance with the terms of its prospectus based on a defined investment strategy.    
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Managing Owner [Member]    
Number of operating segment | Segment 1    
Distribution record date Dec. 23, 2024    
Distribution paid date Dec. 27, 2024    
Non-recurring fees and expenses $ 0 $ 0 $ 0
Average charges paid to broker per round-turn trade, maximum 7.00 7.00 7.00
General Shares [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Distributed earnings $ 43 $ 38 $ 4
Distributions per share | $ / shares $ 1.08408 $ 0.96045 $ 0.09643
Shares [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Distributed earnings $ 31,763,544 $ 34,240,043 $ 5,670,084
Distributions per share | $ / shares $ 1.08408 $ 0.96045 $ 0.09643