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Condensed Statement of Changes in Partners' Capital - USD ($) | Total | General Partner [Member] | Limited Partners [Member]
--- | --- | --- | ---
Net income (loss) | $ 16,489,055 |  |
Net asset value, beginning of period at Dec. 31, 2015 | $ 8.69 |  |
Net asset value, end of period at Sep. 30, 2016 | $ 8.33 |  |
Balances at Dec. 31, 2016 | $ 537,810,802 | $ 0 | $ 537,810,802
Addition of partnership shares | 1,219,305,781 | 0 | 1,219,305,781
Redemption of partnership shares | (1,081,074,804) | 0 | (1,081,074,804)
Net income (loss) | (152,131,287) | 0 | (152,131,287)
Balances at Sep. 30, 2017 | $ 523,910,492 | $ 0 | $ 523,910,492
Net asset value, beginning of period at Dec. 31, 2016 | $ 9.29 |  |
Net asset value, end of period at Sep. 30, 2017 | $ 6.54 |  |

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