v3.26.1
Related Parties - Additional Information (Details)
3 Months Ended 6 Months Ended
Jan. 24, 2025
Jul. 23, 2024
USD ($)
Jun. 30, 2026
USD ($)
Right
shares
Jun. 30, 2025
USD ($)
Right
shares
Jun. 30, 2026
USD ($)
Right
shares
Jun. 30, 2025
USD ($)
Right
shares
Mar. 31, 2026
shares
Dec. 31, 2025
Right
shares
Oct. 06, 2025
Mar. 31, 2025
shares
Dec. 31, 2024
shares
Related Party Transaction [Line Items]                      
Shares outstanding | shares     89,790,788 56,140,788 89,790,788 56,140,788 90,880,788 77,730,788   48,450,788 49,970,788
Shares of the Trust, held by related parties | shares     2,007   2,007     2,592      
Number of Incidental Right held | Right     0   0     0      
Number of Incidental Rights distributed | Right     0 0 0 0          
Aggregate percentage of gross staking awards                 6.00%    
Sponsor's fees     $ 264,000   $ 523,000            
Amount distributed in redemption of shares     $ 136,736,000 $ 14,976,000 $ 369,689,000 $ 119,392,000          
Shares redeemed | shares     7,690,000 690,000 17,650,000 5,090,000          
Sponsor                      
Related Party Transaction [Line Items]                      
Related party sponsor fee percentage         0.15%            
Sponsor's fees     $ 682,000 $ 406,000 $ 1,389,000 $ 729,000          
Sponsor | First Six Months                      
Related Party Transaction [Line Items]                      
Sponsor's fees as a percentage of net asset value of the fund after waiver   0.00%                  
Initial value of the trust assets on the basis of which sponsor's fees is determined   $ 2,000,000,000                  
Sponsor | After Six-Month Waiver Period                      
Related Party Transaction [Line Items]                      
Sponsor's fees as a percentage of net asset value of the fund after waiver 0.15%                    
Sponsor | Maximum                      
Related Party Transaction [Line Items]                      
Related party transaction in a fiscal year         600,000            
Non Sponsor Paid Expenses | Minimum                      
Related Party Transaction [Line Items]                      
Related party transaction in a fiscal year         $ 600,000