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Condensed Statement of Changes in Partners' Capital - USD ($)
General Partners [Member]
Limited Partners [Member]
Total
Balances at Dec. 31, 2018   $ 248,014,523  
Addition of partnership shares,respectively   446,533,840  
Redemption of partnership shares,respectively   (328,322,177)  
Net income (loss)   (41,285,033) $ (41,285,033)
Balances at Jun. 30, 2019 $ 0 324,941,153  
Balances at Mar. 31, 2019   254,882,942  
Addition of partnership shares,respectively   175,491,124  
Redemption of partnership shares,respectively   (64,810,638)  
Net income (loss)   (40,622,275) (40,622,275)
Balances at Jun. 30, 2019 0 324,941,153  
Balances at Dec. 31, 2019   444,573,254 444,573,254
Addition of partnership shares,respectively   505,641,792  
Redemption of partnership shares,respectively   (361,232,132)  
Net income (loss)   (205,605,648) (205,605,648)
Balances at Jun. 30, 2020 0 383,377,266 383,377,266
Balances at Mar. 31, 2020   327,914,952  
Addition of partnership shares,respectively   250,904,441  
Redemption of partnership shares,respectively   (122,725,416)  
Net income (loss)   (72,716,711) (72,716,711)
Balances at Jun. 30, 2020 $ 0 $ 383,377,266 $ 383,377,266