Uncertainties and Certain Significant Accounting Estimates (Details)	1 Months Ended	3 Months Ended	4 Months Ended
Mar. 31, 2020 USD ($) plant	Jun. 30, 2020 USD ($) plant	Jun. 30, 2020 USD ($) plant	Dec. 31, 2019 USD ($)
Uncertainties and Certain Significant Accounting Estimates (Textual)
Number of ethanol plants temporarily idled	8
Number of ethanol plants with temporarily reduced production	6
Number of idled ethanol plants restarted due to partial recovery in demand		4
Number of ethanol plants evaluated for potential impairment			6
Goodwill \| $		$ 260,000,000	$ 260,000,000
Impairment of goodwill \| $			0
LCM inventory valuation reserve \| $	$ 2,500,000,000	$ 294,000,000	$ 294,000,000	$ 0

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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