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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - Creation Baskets	Mar. 31, 2021 USD ($) $ / item
Significant Accounting Policies [Line Items]
Number of Shares per basket \| $ / item	50,000
Fee paid by Authorized Purchasers for each order placed to create one or more Creation Baskets or to redeem one or more baskets \| $	$ 350