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FAIR VALUE (Financial Assets and Financial Liabilities Measured at Fair Value on Recurring Basis) (Details) - Fair value, measurements, recurring - USD ($) $ in Thousands | Nov. 30, 2019 | Aug. 31, 2019
--- | --- | ---
Money market investments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money market investments | $ 76,553 | $ 66,240
Commodity |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 1,277 | 1,269
Derivative liabilities | 404 | 99
Foreign exchange |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 289 | 569
Derivative liabilities | 567 | 899
Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market investments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money market investments | 76,553 | 66,240
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commodity |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 194 | 1,269
Derivative liabilities | 404 | 99
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign exchange |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Derivative liabilities | 0 | 0
Significant Other Observable Inputs (Level 2) | Money market investments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money market investments | 0 | 0
Significant Other Observable Inputs (Level 2) | Commodity |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Derivative liabilities | 0 | 0
Significant Other Observable Inputs (Level 2) | Foreign exchange |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 289 | 569
Derivative liabilities | 567 | 899
Significant Unobservable Inputs (Level 3) | Money market investments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money market investments | 0 | 0
Significant Unobservable Inputs (Level 3) | Commodity |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 1,083 | 0
Derivative liabilities | 0 | 0
Significant Unobservable Inputs (Level 3) | Foreign exchange |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets | 0 | 0
Derivative liabilities | $ 0 | $ 0

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