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Condensed Statements of Financial Condition (Parenthetical) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Condensed Statements of Financial Condition (Unaudited)      
Cash and cash equivalents $ 303,480,374 $ 311,507,932 $ 85,368,500
Restricted cash and cash equivalents $ 38,373,003 $ 33,830,326