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Related Party Transactions (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Feb. 26, 2016	Jun. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jul. 03, 2017
Related Party Transaction [Line Items]
Cost of sales, related party transactions			$ 0	$ 18,425	$ 29,596
Return of equity method investment				22,832
Distributions received from equity method investee			$ 0	7,131	3,300
Equity method ownership percentage						30.00%
Illinois Corn Processings LLC
Related Party Transaction [Line Items]
Return of equity method investment		$ 7,430
Illinois Corn Processings LLC
Related Party Transaction [Line Items]
Distributions received from equity method investee	$ 3,300
Equity method ownership percentage	30.00%					30.00%
ICP
Related Party Transaction [Line Items]
Cost of sales, related party transactions				$ 18,425	$ 29,596

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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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