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Acquisitions, Dispositions And Discontinued Operations (Summarized Results Of Discontinued Operations) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | [1] | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Income tax expense |  |  |  |  |  |  |  |  |  |  | $ (258) | $ (3,421)
Net income |  |  |  |  |  |  | $ 3,359 | $ 1,939 | $ (4,469) |  | 829 | 11,539
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
Discontinued Operations [Member] | Green Plains Cattle Company LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Product revenues | [2] |  |  |  |  |  |  |  |  |  | 638,122 | 884,072
Cost of goods sold (excluding depreciation and amortization expenses reflected below) | [2] |  |  |  |  |  |  |  |  |  | 614,671 | 845,160
Selling, general and administrative | [2] |  |  |  |  |  |  |  |  |  | 5,931 | 7,775
Depreciation and amortization expenses | [2] |  |  |  |  |  |  |  |  |  | 4,198 | 5,361
Total costs and expenses | [2] |  |  |  |  |  |  |  |  |  | 624,800 | 858,296
Operating income | [2] |  |  |  |  |  |  |  |  |  | 13,322 | 25,776
Interest income | [2] |  |  |  |  |  |  |  |  |  | 182 | 147
Income expense | [2] |  |  |  |  |  |  |  |  |  | (12,417) | (13,576)
Other, net | [2] |  |  |  |  |  |  |  |  |  |  | 2,613
Total other expense | [2] |  |  |  |  |  |  |  |  |  | (12,235) | (10,816)
Income before income taxes | [2] |  |  |  |  |  |  |  |  |  | 1,087 | 14,960
Income tax expense | [2] |  |  |  |  |  |  |  |  |  | (258) | (3,421)
Net income | [2] |  |  |  |  |  |  |  |  |  | 829 | 11,539
Cattle [Member] | Discontinued Operations [Member] | Green Plains Cattle Company LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold (excluding depreciation and amortization expenses reflected below) |  |  |  |  |  |  |  |  |  |  | $ 14,500 | $ 24,600
[1] | 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.
[2] | Product revenues, costs of goods sold and selling, general and administrative expenses include certain revenue and expense items which were previously considered intercompany transactions prior to the disposition of GPCC and therefore eliminated upon consolidation. These revenue and costs of goods sold transactions total $14.5 million and $24.6 million for the years ended December 31, 2019 and 2018, respectively.

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