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FAIR VALUE (Financial Assets and Financial Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands | Aug. 31, 2018 | Aug. 31, 2017
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative assets | [1] | $ 2,288 | $ 2,134
Fair value, measurements, recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Money market investments | [2] | 541,101 | 43,553
Fair value, measurements, recurring | Level 1 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Money market investments | [2] | 541,101 | 43,553
Fair value, measurements, recurring | Level 2 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Money market investments | [2] | 0 | 0
Fair value, measurements, recurring | Level 3 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Money market investments | [2] | 0 | 0
Fair value, measurements, recurring | Commodity |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative assets | [3] | 1,881 | 767
Derivative liabilities | [3] | 301 | 3,251
Fair value, measurements, recurring | Commodity | Level 1 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative liabilities | [3] | 301 | 3,251
Fair value, measurements, recurring | Commodity | Level 2 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative assets | [3] | 0 | 0
Derivative liabilities | [3] | 0 | 0
Fair value, measurements, recurring | Commodity | Level 3 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative assets | [3] | 0 | 0
Derivative liabilities | [3] | 0 | 0
Fair value, measurements, recurring | Foreign exchange |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative assets | [3] | 407 | 1,367
Derivative liabilities | [3] | 1,095 | 5,259
Fair value, measurements, recurring | Foreign exchange | Level 1 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative assets | [3] | 0 | 0
Derivative liabilities | [3] | 0 | 0
Fair value, measurements, recurring | Foreign exchange | Level 2 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative assets | [3] | 407 | 1,367
Derivative liabilities | [3] | 1,095 | 5,259
Fair value, measurements, recurring | Foreign exchange | Level 3 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative assets | [3] | 0 | 0
Derivative liabilities | [3] | $ 0 | $ 0
[1] | * Derivative assets and liabilities do not include the hedged items designated as fair value hedges.
[2] | (1) Investment deposit accounts are short-term in nature, and the value is determined by principal plus interest. The investment portfolio mix can change each period based on the Company's assessment of investment options.
[3] | (2) Derivative assets and liabilities classified as Level 1 are commodity futures contracts valued based on quoted market prices in the London Metal Exchange or the New York Mercantile Exchange. Amounts in Level 2 are based on broker quotes in the over-the-counter market. Further discussion regarding the Company's use of derivative instruments and the classification of the assets and liabilities is included in Note 12, Derivatives and Risk Management.

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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