Equity Method Investments (Summary Of Balance Sheet Of Equity Method Investment) (Details) - Green Plains Cattle Company LLC [Member] $ in Thousands	Dec. 31, 2019 USD ($)
Schedule of Equity Method Investments [Line Items]
Current assets	$ 516,324
Noncurrent assets	73,922
Current liabilities	461,534
Noncurrent liabilities	390
Net assets	$ 128,322

Equity Method Investment, Summarized Financial Information, Net Assets

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