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Consolidated Statements of Income and Expenses (Unaudited) (Parenthetical) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Brokerage commissions and fees $ 142,775 $ 175,786 $ 178,822
WisdomTree Continuous Commodity Index Master Fund [Member]      
Brokerage commissions and fees $ 142,775 $ 175,786 $ 178,822