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Condensed Statements of Cash Flows (Parenthetical) - USD ($)
Mar. 31, 2020
Mar. 31, 2019
Components of Cash and Cash Equivalents:    
Cash and Cash Equivalents $ 1,305,680,808 $ 1,363,074,393
Equity in Trading Accounts    
Cash and Cash Equivalents 1,679,319,722 169,466,759
Total Cash, Cash Equivalents and Equity in Trading Accounts $ 2,985,000,530 $ 1,532,541,152