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v3.19.3

Organization, Basis of Presentation and Significant Accounting Policies (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2018 | Aug. 31, 2019 | Aug. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Intangible assets with indefinite useful lives |  | $ 0 |
Reclassification of tax effects to capital reserves |  | 0 |
Accumulated Other Comprehensive Loss |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Reclassification of tax effects to capital reserves |  | (4,706) | $ (26,992)
Capital Reserves |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Reclassification of tax effects to capital reserves | $ 27,000 | $ 4,706 |
Minimum | Major Maintenance Activities |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Expenditures of turnarounds, capitalization period |  | 2 years |
Minimum | Other Intangible Assets |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Expenditures of turnarounds, capitalization period |  | 2 years |
Minimum | Land improvements |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Property, plant and equipment, useful life |  | 15 years |
Minimum | Buildings |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Property, plant and equipment, useful life |  | 20 years |
Minimum | Machinery and equipment |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Property, plant and equipment, useful life |  | 5 years |
Minimum | Office equipment and other |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Property, plant and equipment, useful life |  | 3 years |
Maximum | Major Maintenance Activities |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Expenditures of turnarounds, capitalization period |  | 5 years |
Maximum | Other Intangible Assets |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Expenditures of turnarounds, capitalization period |  | 30 years |
Maximum | Land improvements |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Property, plant and equipment, useful life |  | 20 years |
Maximum | Buildings |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Property, plant and equipment, useful life |  | 40 years |
Maximum | Machinery and equipment |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Property, plant and equipment, useful life |  | 20 years |
Maximum | Office equipment and other |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Property, plant and equipment, useful life |  | 10 years |
Low range [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification |  | $ 240,000 |
High range [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification |  | $ 280,000 |

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