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Condensed Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Jun. 30, 2020
Condensed Statements of Financial Condition (Unaudited)      
Cash and cash equivalents $ 238,613,805 $ 311,507,932 $ 346,275,914
Restricted cash and cash equivalents $ 74,940,810 $ 33,830,326