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Related Party Transactions (Textual) (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Mar. 02, 2018
gal
Related Party Transaction [Line Items]            
Total distributions received from unconsolidated affiliates     $ 400,000 $ 2,200,000    
Revenues recognized for the sale of ethanol $ 158,500,000 $ 161,900,000 456,700,000 480,400,000    
Related party, gross assets 400,000 6,800,000 400,000 6,800,000 $ 1,900,000  
Related party, gross liability 2,600,000 $ 7,200,000 2,600,000 $ 7,200,000 $ 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
Remaining obligation $ 5,200,000   $ 5,200,000