Debt (Schedule Of Short-term Notes Payable And Other Borrowings) (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Short-term notes payable and other borrowings	$ 173,418,000	$ 140,808,000
Other Short Term Debt [Member]
Debt Instrument [Line Items]
Short-term notes payable and other borrowings		1,175,000
Green Plains Trade [Member] | $300.0 Million Revolver [Member]
Debt Instrument [Line Items]
Short-term notes payable and other borrowings	137,208,000	79,251,000
Debt instrument, face amount	300,000,000.0
Green Plains Grain [Member] | $100.0 Million Revolver [Member]
Debt Instrument [Line Items]
Short-term notes payable and other borrowings	20,000,000	38,700,000
Debt instrument, face amount	100,000,000.0
Green Plains Grain [Member] | $50.0 Million Inventory Financing [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	50,000,000.0
Green Plains Commodity Management [Member] | $40.0 Million Hedge Line [Member]
Debt Instrument [Line Items]
Short-term notes payable and other borrowings	16,210,000	$ 21,682,000
Debt instrument, face amount	$ 40,000,000.0