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Condensed Statement of Changes in Partners' Capital (Unaudited) (Parenthetical) - shares
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Condensed Statement of Changes in Partners' Capital (Unaudited)    
Addition of partnership units 3,700,000 71,637,500
Redemption of partnership units (40,500,000) (8,512,500)