v3.25.1
Summary of Significant Accounting Policies - Additional Information (Detail)
3 Months Ended
Mar. 31, 2025
USD ($)
Segment
Mar. 31, 2024
USD ($)
Accounting Policies [Line Items]    
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description The Trust represents a single operating segment. Subject to the oversight and, when applicable, approval of the Board of Managers, the Trust's Sponsor acts as the Trust's chief operating decision maker (“CODM”), assessing performance and making decisions about resource allocation. The CODM monitors the operating results as a whole and the Trust's long-term strategic asset allocation is determined in accordance with the terms of its prospectus based on a defined investment strategy.  
Number of operating segment | Segment 1  
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Sponsor [Member]  
Provision for federal income taxes $ 0  
Minimum days required to stay for tax liability 183 days  
Sponsor [Member] | Professional Fees Liability [Member]    
Accounting Policies [Line Items]    
Legal fees and expenses assumed $ 100,000  
Excess amount of assumed audit fees and legal expenses $ 100,000 $ 100,000