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Acquisitions, Dispositions And Discontinued Operations (Amounts Of Identifiable Assets Disposed And Liabilities Relinquished) (Details) - Disposal Group, Not Discontinued Operations [Member] - USD ($) $ in Thousands | Dec. 28, 2020 | Sep. 01, 2019 | Nov. 27, 2018 | Nov. 15, 2018
--- | --- | --- | --- | ---
Fleischmann's Vinegar [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Cash |  |  | $ 2,107 |
Accounts receivable, net |  |  | 16,142 |
Inventory |  |  | 15,167 |
Prepaid expenses and other |  |  | 853 |
Property and equipment |  |  | 64,552 |
Other assets |  |  | 79,389 |
Current liabilities |  |  | (8,837) |
Deferred tax liabilities |  |  | (26,617) |
Total identifiable net assets disposed |  |  | 142,756 |
Goodwill |  |  | 142,002 |
Net assets disposed |  |  | $ 284,758 |
Bluffton, Lakota and Riga Ethanol Plants [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Inventory |  |  |  | $ 36,812
Prepaid expenses and other |  |  |  | 189
Property and equipment |  |  |  | 184,970
Other assets |  |  |  | 1,717
Current liabilities |  |  |  | (746)
Other liabilities |  |  |  | (4,706)
Total identifiable net assets disposed |  |  |  | 218,236
Goodwill |  |  |  | 6,188
Net assets disposed |  |  |  | $ 224,424
Green Plains Cattle Company LLC [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Cash |  | $ 2 |  |
Accounts receivable, net |  | 17,920 |  |
Inventory |  | 387,534 |  |
Derivative financial instruments |  | 48,189 |  |
Property and equipment |  | 71,678 |  |
Other assets |  | 2,291 |  |
Current liabilities |  | (49,297) |  |
Short-term notes payable and other borrowings |  | (38) |  |
Current maturities of long-term debt |  | (324,028) |  |
Long-term debt |  | (80) |  |
Other liabilities |  | (403) |  |
Total identifiable net assets disposed |  | $ 153,768 |  |
Hereford Ethanol Plant [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Inventory | $ 8,140 |  |  |
Prepaid expenses and other | 196 |  |  |
Property and equipment | 54,279 |  |  |
Operating lease right-of-use assets | 5,096 |  |  |
Accrued and other liabilities | (870) |  |  |
Operating lease current liabilities | (977) |  |  |
Operating lease long-term liabilities | (4,201) |  |  |
Other liabilities | (186) |  |  |
Total identifiable net assets disposed | $ 61,477 |  |  |

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