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Partners' Capital (Details) - shares | Jul. 30, 2019 | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Limited partner | Common units |  |  |
Partners' Capital |  |  |
Partners' capital (in units) |  | 96,615,998 |
Limited partner units issued (in shares) | 6,397,965 | 96,616,000 | 89,984,000
Limited partner | Common units | ETO |  |  |
Partners' Capital |  |  |
Partners' capital (in units) |  | 46,056,228 |
Limited partner | Class B Units |  |  |
Partners' Capital |  |  |
Limited partner units converted (in shares) | 6,397,965 |  |
Limited partner units issued (in shares) |  |  | 6,398,000
General partner | Common units | ETO |  |  |
Partners' Capital |  |  |
Partners' capital (in units) |  | 8,000,000 |

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