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v3.19.1

Restatement of Previously Issued Financial Information - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Feb. 28, 2019 | Nov. 30, 2018 | Feb. 28, 2018 | Nov. 30, 2017 | Feb. 28, 2019 | Feb. 28, 2018 | Aug. 31, 2017 | Aug. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Increase (decrease) to income before income taxes | $ 261,855 |  | $ (21,729) |  | $ 629,087 | $ 186,059 |  |
Increase (decrease) to net income | 248,304 | $ 347,115 | 165,959 | $ 187,182 | 595,419 | 353,141 |  |
Decrease in cash | (367,307) |  | (219,273) |  | (367,307) | (219,273) | $ (181,379) | $ (450,617)
Increase (decrease) to cost of goods sold | 6,056,126 |  | 6,845,184 |  | 14,069,774 | 14,556,576 |  |
Increase (decrease) to income tax expense | 13,551 |  | (187,688) |  | 33,668 | (167,082) |  |
Increase (decrease) to revenues | 6,483,539 |  | 6,980,153 |  | 14,967,828 | 15,012,037 |  |
Decrease of inventory | $ (3,554,780) |  |  |  | $ (3,554,780) |  |  | $ (2,768,649)
Restatement Adjustments |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Increase (decrease) to income before income taxes |  |  | (7,179) |  |  | 1,054 |  |
Increase (decrease) to net income |  |  | (667) |  |  | 6,896 |  |
Increase (decrease) to cost of goods sold |  |  | 136,239 |  |  | 111,669 |  |
Increase (decrease) to income tax expense |  |  | (6,512) |  |  | (5,842) |  |
Increase (decrease) to revenues |  |  | 129,060 |  |  | 112,055 |  |
Freight Derivatives And Related Misstatements [Member] |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Misstatement between line items in the Consolidated Statements of Cash Flows |  |  |  |  |  | 3,000 |  |
Freight Derivatives And Related Misstatements [Member] | Restatement Adjustments |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Increase (decrease) to income before income taxes |  |  | (22,500) |  |  | (23,000) |  |
Increase (decrease) to net income |  |  | (22,600) |  |  | (23,800) |  |
Increase (decrease) to cost of goods sold |  |  | 22,500 |  |  | 23,000 |  |
Increase (decrease) to income tax expense |  |  | 100 |  |  | 800 |  |
Misstatement between line items in the Consolidated Statements of Cash Flows |  |  |  |  |  |  | 13,000 |
Intercompany Misstatements |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Misstatement between line items in the Consolidated Statements of Cash Flows |  |  |  |  |  | 3,000 |  |
Intercompany Misstatements | Restatement Adjustments |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Increase (decrease) to revenues |  |  | 161,500 |  |  | 150,200 |  |
Misstatement between line items in the Consolidated Statements of Cash Flows |  |  |  |  |  |  | 6,000 |
Other Misstatements | Restatement Adjustments |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Increase (decrease) to income before income taxes |  |  | 15,300 |  |  | 24,100 |  |
Increase (decrease) to net income |  |  | 21,900 |  |  | 30,700 |  |
Increase (decrease) to cost of goods sold |  |  | (1,600) |  |  |  |  |
Increase (decrease) to income tax expense |  |  | (6,600) |  |  | (6,600) |  |
Increase (decrease) to revenues |  |  | (28,000) |  |  |  |  |
Misstatement between line items in the Consolidated Statements of Cash Flows |  |  |  |  |  | 18,300 | 21,200 |
Reduction of notes payable |  |  | 3,100 |  |  | 3,100 |  |
Other Misstatements, Misclassification Adjustment [Member] | Restatement Adjustments |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Increase (decrease) to revenues |  |  |  |  |  | (33,400) |  |
Other Misstatements, Excise Tax Credit [Member] | Restatement Adjustments |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Increase (decrease) to cost of goods sold |  |  | (13,700) |  |  | (13,700) |  |
Other Misstatements, Valuation of Derivatives [Member] | Restatement Adjustments |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Increase (decrease) to cost of goods sold |  |  |  |  |  | (7,900) |  |
Other Misstatements, Postretirement Benefit Plan Activity | Restatement Adjustments |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Increase (decrease) to cost of goods sold |  |  |  |  |  | 2,600 |  |
Other Misstatements, Timing Difference | Restatement Adjustments |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |
Negative cash balance |  |  | $ 6,000 |  |  | $ 6,000 |  |
Decrease of inventory |  |  |  |  |  |  | 24,100 |
Increase in accounts receivable |  |  |  |  |  |  | $ 24,100 |

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