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Related Party Transactions (Textual) (Details) $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Mar. 02, 2018 gal | Dec. 31, 2017 USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |
Total distributions received from unconsolidated affiliates | $ 2.2 |  | $ 7.1 |  |  |
Revenues recognized for the sale of ethanol | 161.9 | $ 160.8 | 480.4 | $ 445.4 |  |
Revenues recognized for the sale of corn |  | 119.1 |  | 362.2 |  |
Related party, gross assets | 6.8 | 1.9 | 6.8 | 1.9 |  | $ 0.2
Related party, gross liability | $ 7.2 | $ 0.1 | $ 7.2 | $ 0.1 |  | $ 2.5
ELEMENT, LLC | Subsidiary |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Noncontrolling interest is attributed of all gains and losses of parent (percentage) |  |  |  |  | 49.00% |
Percentage of company's interest in subsidiary |  |  |  |  | 51.00% |
Maximum production capacity of bio-refinery (gallons) | gal |  |  |  |  | 70,000,000 |
TAME |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Percentage of company ownership interest (percentage) | 33.00% |  | 33.00% |  |  |

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