Related Party Transactions (Textual) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)	Mar. 02, 2018 gal
Related Party Transaction [Line Items]
Total distributions received from unconsolidated affiliates			$ 300,000	$ 2,100,000
Revenues recognized for the sale of ethanol	$ 154,200,000	$ 172,300,000	298,200,000	318,500,000
Related party, gross assets	200,000	8,100,000	200,000	8,100,000	$ 1,900,000
Related party, gross liability	$ 2,100,000	$ 3,900,000	$ 2,100,000	$ 3,900,000	$ 6,300,000
ELEMENT, LLC | Subsidiary
Related Party Transaction [Line Items]
Percentage of company's interest in subsidiary						51.00%
Noncontrolling interest is attributed of all gains and losses of parent (percentage)						49.00%
Maximum production capacity of bio-refinery (gallons) | gal						70,000,000