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Acquisitions (Schedule of Pro Forma Financial Information) (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Basic and diluted earnings per common unit: |  |  |
As reported net income per common unit (in dollars per unit) | $ 0.18 | $ (0.62) | $ 0.50
Alkali Business |  |  |
Pro forma consolidated financial operating results: |  |  |
Revenues |  |  | $ 2,549,438
Net Income Attributable to Genesis Energy, L.P. |  |  | 108,392
Net Income Available to Common Unitholders |  |  | $ 42,768
Basic and diluted earnings per common unit: |  |  |
As reported net income per common unit (in dollars per unit) |  |  | $ 0.50
Pro forma net income per common unit, basic and diluted (in dollars per unit) |  |  | $ 0.35

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