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Condensed Statements of Cash Flows (Parenthetical) - USD ($)
Jun. 30, 2020
Jun. 30, 2019
Components of Cash and Cash Equivalents:    
Cash and Cash Equivalents $ 328,821,241 $ 265,182,362
Equity in Trading Accounts:    
Cash and Cash Equivalents 86,405,619 64,862,897
Total Cash, Cash Equivalents and Equity in Trading Accounts 415,226,860 330,045,259
Cash And Cash Equivalents And Equity In Trading Accounts $ 415,226,860 $ 330,045,259