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Related Parties - Additional Information (Details)
3 Months Ended 9 Months Ended
Jun. 30, 2022
USD ($)
Right
shares
Jun. 30, 2021
USD ($)
Right
Jun. 30, 2022
USD ($)
Right
shares
Jun. 30, 2021
USD ($)
Right
Mar. 02, 2022
USD ($)
Sep. 30, 2021
USD ($)
Right
shares
Related Party Transaction [Line Items]            
Shares of the Trust, held by related parties | shares 118,192   118,192     143,170
Related party sponsor fee percentage     2.50%      
Number of Incidental Rights held | Right 0   0     0
Number of Incidental Rights distributed | Right 0 0 0 0    
Sponsor's Fees incurred $ 73,525 $ 196,686 $ 334,026 $ 341,099    
Accrued and unpaid Sponsor's Fees 0   0     $ 0
Additional trust expenses paid by sponsor $ 0 $ 0 $ 0 $ 0    
Sponsor's Parent | Coinbase Inc            
Related Party Transaction [Line Items]            
Percentage of minority interest owned 1.00%   1.00%      
Sponsor            
Related Party Transaction [Line Items]            
Related party maximum transaction in a fiscal year     $ 600,000      
Non Sponsor Paid Expenses            
Related Party Transaction [Line Items]            
Related party maximum transaction in a fiscal year     $ 600,000      
DCG | Maximum            
Related Party Transaction [Line Items]            
Common stock value, shares authorized         $ 200,000,000