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Green Plains Partners LP (Narrative) (Details) gal in Billions	12 Months Ended
	Dec. 31, 2020 item shares gal
Subsidiary, Sale of Stock [Line Items]
Number Of Ethanol Storage Facilities	31
Number Of Ethanol Plants	12
Number Of Fuel Terminal Facilities	6
Number Of Leased Railcars	2,480
Parent Company [Member]
Subsidiary, Sale of Stock [Line Items]
Number of gallons of ethanol produced per year | gal	1.0
Limited Partner [Member] | IPO [Member]
Subsidiary, Sale of Stock [Line Items]
Ownership interest, percentage	48.90%
Limited Partner [Member] | IPO [Member] | Parent Company [Member]
Subsidiary, Sale of Stock [Line Items]
Ownership interest, percentage	49.10%
Ownership interest, public, percentage	49.10%
Limited Partner [Member] | Common Stock [Member] | IPO [Member] | Parent Company [Member]
Subsidiary, Sale of Stock [Line Items]
Number of units issued as part of the transaction | shares	11,586,548
General Partner [Member] | IPO [Member] | Parent Company [Member]
Subsidiary, Sale of Stock [Line Items]
Ownership interest, percentage	2.00%
Green Plains Partners LP [Member] | IPO [Member]
Subsidiary, Sale of Stock [Line Items]
Ethanol storage and throughput agreement	10 years
Rail transportation services agreement	10 years
Trucking transportation agreement	1 year

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Number Of Ethanol Plants

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Number Of Fuel Terminal Facilities

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The number of gallons of ethanol produced per year.

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Number Of Leased Railcars

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