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DERIVATIVES AND RISK MANAGEMENT (Effective Portion of Derivatives Designated as Cash Flow Hedging Instruments Reclassified from Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Aug. 31, 2016 | Aug. 31, 2015 | Aug. 31, 2014
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gain (loss) before income taxes | $ 2,233 | $ (2,707) | $ (1,505)
Income tax (expense) benefit | (496) | 949 | 237
Gain (loss), net of income taxes | 1,737 | (1,758) | (1,268)
Commodity | Cost of goods sold |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gain (loss) before income taxes | (493) | (665) | (160)
Foreign exchange | Cost of goods sold |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gain (loss) before income taxes | 2,283 | (2,774) | (1,717)
Foreign exchange | Net sales |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gain (loss) before income taxes | (380) | 124 | (213)
Foreign exchange | SG&A expenses |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gain (loss) before income taxes | 291 | 76 | 53
Interest rate | Interest expense |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gain (loss) before income taxes | $ 532 | $ 532 | $ 532

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