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Debt (Schedule Of The Components Of Long-Term Debt) (Details) - USD ($)

Dec. 31, 2020

Sep. 03, 2020

Dec. 31, 2019

Aug. 31, 2016

Debt Instrument [Line Items]

Total book value of long-term debt

$ 391,502,000

$ 381,365,000

Unamortized debt issuance costs

(6,151,000)

(4,820,000)

Less: current maturities of long-term debt

(98,052,000)

(132,555,000)

Total long-term debt

287,299,000

243,990,000

Convertible Notes [Member] | 4.125% Convertible Notes Due 2022 [Member] | Corporate Activities [Member]

Debt Instrument [Line Items]

Total book value of long-term debt

^[1]

156,441,000

149,256,000

Unamortized debt issuance costs

(1,300,000)

(2,000,000.0)

Debt instrument, face amount

170,000,000.0

170,000,000.0

$ 170,000,000.0

Convertible Notes [Member] | 4.00% Convertible Notes Due 2024 [Member] | Corporate Activities [Member]

Debt Instrument [Line Items]

Total book value of long-term debt

^[2]

89,125,000

83,497,000

Unamortized debt issuance costs

(2,200,000)

(2,800,000)

Debt instrument, face amount

115,000,000.0

115,000,000.0

Other Debt Obligations [Member]

Debt Instrument [Line Items]

Total book value of long-term debt

15,936,000

16,512,000

Green Plains Wood River and Green Plains Shenandoah [Member] | $75.0 Million Delayed Draw Loan Agreement [Member]

Debt Instrument [Line Items]

Total book value of long-term debt

^[3]

30,000,000

Unamortized debt issuance costs

(300,000)

Debt instrument, face amount

75,000,000.0

$ 75,000,000.0

75,000,000.0

Credit Facility [Member] | Green Plains Partners [Member]

Debt Instrument [Line Items]

Total book value of long-term debt

^[4]

100,000,000

132,100,000

Debt instrument, face amount

135,000,000.0

$ 135,000,000.0

Credit Facility [Member] | Green Plains Wood River and Green Plains Shenandoah [Member]

Debt Instrument [Line Items]

Unamortized debt issuance costs

$ (2,300,000)

[1]	Includes $1.3 million and $2.0 million of unamortized debt issuance costs as of December 31, 2020 and 2019, respectively.
[2]	Includes $2.2 million and $2.8 million of unamortized debt issuance costs as of December 31, 2020 and 2019, respectively.
[3]	On September 3, 2020, Green Plains Wood River and Green Plains Shenandoah, wholly-owned subsidiaries of the company, entered into a $75.0 million delayed draw loan agreement. The delayed draw loan includes $0.3 million of unamortized debt issuance costs as of December 31, 2020.
[4]	The Green Plains Partners credit facility was amended on June 4, 2020 and includes $2.3 million of unamortized debt issuance costs as of December 31, 2020. Additionally, the credit facility is included in current maturities of long-term debt on the consolidated balance sheet as of December 31, 2020 as its maturity date is December 31, 2021. See below for further discussion.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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