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Debt - Components of Long-Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Mar. 31, 2021	Feb. 09, 2021
Debt Instrument [Line Items]
Total book value of long-term debt	$ 436,647	$ 498,763
Less: current maturities of long-term debt	(1,875)	(1,832)
Total long-term debt	431,189	491,918
Unamortized debt issuance costs	$ (3,583)	(5,013)
Convertible Notes \| 2.25% Convertible Notes Due 2027 \| Corporate Activities
Debt Instrument [Line Items]
Interest rate, stated percentage	2.25%		2.25%
Face amount			$ 230,000
Total book value of long-term debt	$ 230,000	230,000
Unamortized debt issuance costs	$ (3,000)	(4,000)
$75.0 Million Delayed Draw Loan Agreement
Debt Instrument [Line Items]
Interest rate, stated percentage	5.52%
Other Debt Obligations
Debt Instrument [Line Items]
Total book value of long-term debt	$ 9,647	14,669
Green Plains SPE LLC \| $125.0 Million Junior Secured Mezzanine Notes Due 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	11.75%
Face amount	$ 125,000			$ 125,000
Total book value of long-term debt	125,000	125,000
Unamortized debt issuance costs	$ (300)	(400)
Green Plains Shenandoah \| $75.0 Million Delayed Draw Loan Agreement
Debt Instrument [Line Items]
Interest rate, stated percentage	5.02%
Face amount	$ 75,000
Total book value of long-term debt	72,000	73,125
Unamortized debt issuance costs	(300)	(300)
Partnership Segment [Member] \| $60.0 Million Term Loan
Debt Instrument [Line Items]
Total book value of long-term debt	0	55,969
Credit Facility \| Partnership Segment [Member]
Debt Instrument [Line Items]
Face amount	$ 60,000
Unamortized debt issuance costs		$ (300)