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Revenue (Disaggregation Of Revenue By Major Source) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | [3] | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | $ 50,133 | $ 84,044 | $ 332,282
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 1,873,185 | 2,332,760 | 2,650,349
Leasing revenues under ASC 842 | [2] |  |  |  |  |  |  |  |  | 401 | 434 | 1,301
Total Revenues |  | $ 478,764 | $ 424,062 | $ 388,024 | $ 632,869 | $ 715,677 | $ 632,350 | $ 630,570 | $ 438,641 | 1,923,719 | 2,417,238 | 2,983,932
Ethanol [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  |  | 620 | 3,803
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 1,437,279 | 1,860,665 | 2,037,275
Distillers Grains [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 32,032 | 70,729 | 206,905
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 302,738 | 271,294 | 339,878
Corn Oil [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 2,938 |  |
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 83,229 | 79,775 | 102,300
Grain [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 32,875 | 63,408 | 82,262
Vinegar [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  |  |  | 108,011
Service Revenues [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 4,434 | 6,422 | 5,180
Other [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 10,729 | 6,273 | 8,383
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 17,064 | 57,618 | 88,634
Ethanol Production [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 36,438 | 74,038 | 216,263
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 1,466,143 | 1,626,677 | 1,904,398
Total Revenues |  |  |  |  |  |  |  |  |  | 1,502,581 | 1,700,715 | 2,120,661
Ethanol Production [Member] | Ethanol [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  |  | 620 | 3,803
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 1,150,018 | 1,338,093 | 1,618,319
Ethanol Production [Member] | Distillers Grains [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 32,032 | 70,729 | 206,905
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 261,554 | 228,849 | 198,738
Ethanol Production [Member] | Corn Oil [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 49,666 | 50,290 | 66,567
Ethanol Production [Member] | Grain [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 42 | 175 | 520
Ethanol Production [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 4,306 | 2,589 | 5,369
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 4,863 | 9,270 | 20,254
Ethanol Production [Member] | Intersegment Revenues [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 100 | 100 | 186
Agribusiness & Energy Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 13,824 | 3,684 | 3,038
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 430,047 | 731,816 | 765,918
Total Revenues |  |  |  |  |  |  |  |  |  | 443,871 | 735,500 | 768,956
Agribusiness & Energy Services [Member] | Ethanol [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 287,261 | 522,572 | 418,956
Agribusiness & Energy Services [Member] | Distillers Grains [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 41,184 | 42,445 | 141,140
Agribusiness & Energy Services [Member] | Corn Oil [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 2,938 |  |
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 33,563 | 28,034 | 22,623
Agribusiness & Energy Services [Member] | Grain [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 32,833 | 63,233 | 81,742
Agribusiness & Energy Services [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 6,423 | 3,684 | 3,014
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 12,201 | 48,348 | 68,380
Agribusiness & Energy Services [Member] | Intersegment Revenues [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 4,463 |  | 24
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | 23,005 | 27,184 | 33,077
Food & Ingredients [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  |  |  | 108,011
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  |  | 1,451 | 13,110
Total Revenues |  |  |  |  |  |  |  |  |  |  | 1,451 | 121,121
Food & Ingredients [Member] | Corn Oil [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  |  | 1,451 | 13,110
Food & Ingredients [Member] | Vinegar [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  |  |  | 108,011
Green Plains Partners [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 12,845 | 13,548 | 14,210
Leasing revenues under ASC 842 | [2] |  |  |  |  |  |  |  |  | 70,500 | 68,839 | 86,538
Total Revenues |  |  |  |  |  |  |  |  |  | 83,345 | 82,387 | 100,748
Green Plains Partners [Member] | Service Revenues [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 4,434 | 6,422 | 5,180
Green Plains Partners [Member] | Intersegment Revenues [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | 8,411 | 7,126 | 9,030
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | (12,974) | (7,226) | (9,240)
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | (23,005) | (27,184) | (33,077)
Leasing revenues under ASC 842 | [2] |  |  |  |  |  |  |  |  | (70,099) | (68,405) | (85,237)
Total Revenues |  |  |  |  |  |  |  |  |  | (106,078) | (102,815) | (127,554)
Intersegment Eliminations [Member] | Intersegment Revenues [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  |  | (12,974) | (7,226) | (9,240)
Total revenues from contracts accounted for as derivatives | [1] |  |  |  |  |  |  |  |  | (23,005) | (27,184) | (33,077)
Intersegment Eliminations [Member] | Ethanol Production [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Revenues |  |  |  |  |  |  |  |  |  | (100) | (100) | (186)
Intersegment Eliminations [Member] | Agribusiness & Energy Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Revenues |  |  |  |  |  |  |  |  |  | (27,468) | (27,184) | (33,101)
Intersegment Eliminations [Member] | Green Plains Partners [Member] |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Revenues |  |  |  |  |  |  |  |  |  | $ (78,510) | $ (75,531) | $ (94,267)
[1] | Revenues from contracts accounted for as derivatives represent physically settled derivative sales that are outside the scope of ASC 606, where the company recognizes revenue when control of the inventory is transferred within the meaning of ASC 606 as required by ASC 610-20, Gains and Losses from Derecognition of Nonfinancial Assets.
[2] | Leasing revenues do not represent revenues recognized from contracts with customers under ASC 606, and are accounted for under ASC 842, Leases for 2020 and 2019 and ASC 840, Leases for 2018.
[3] | During the third quarter of 2020, the company identified an immaterial issue which resulted in the overstatement of both revenues and cost of goods sold within the agribusiness and energy services segment as previously reported for the three and six months ended June 30, 2020. The second quarter revenues and cost of goods sold reflected in the quarterly financial data have been revised to correct these amounts.

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