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Inventories - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
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Aug. 31, 2018 | Aug. 31, 2019
Inventory Disclosure [Abstract] |  |
Inventoryreclass | $ 55.1 |
Percentage of LIFO inventory |  | 16.00%
LIFO inventory reserve | 345.0 | $ 215.0
Inventory Reclass Agronomy | 314.4 |
Inventory Reclass Energy | $ 22.4 |

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- Definition Inventory Reclass Agronomy + References No definition available. + Details
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- Definition Inventory Reclass Energy + References No definition available. + Details
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- Definition Inventory Reclass Other Inventory + References No definition available. + Details
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- References No definition available. + Details
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- Definition Amount by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(c)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The percentage of LIFO (last in first out) inventory to total inventory as of the balance sheet date if other than 100 percent. + References No definition available. + Details
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