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Condensed Statements of Cash Flows (Parenthetical) - USD ($)
Jun. 30, 2019
Jun. 30, 2018
Components of Cash and Cash Equivalents:    
Cash and Cash Equivalents, at Carrying Value $ 265,182,362 $ 311,177,329
Equity in Trading Accounts:    
Cash and Cash Equivalents 64,862,897 30,787,364
Total Cash, Cash Equivalents and Equity in Trading Accounts $ 330,045,259 $ 341,964,693