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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Schedule of Derivative Instruments in Statement of Financial Position, Fair Value and Summary of Fair Value of Foreign Currency Forward Contracts) (Details) - USD ($) $ in Thousands | May 31, 2017 | Aug. 31, 2016
--- | --- | ---
Derivative [Line Items] |  |  |
Derivative Asset, Noncurrent |  | $ 2,679 | $ 3,224
Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Noncurrent |  | 2,079 | 1,710
Net Tax Effect |  | (794) | (813)
Total Net OCI |  | 1,285 | 897
Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | Recurring [Member] | Fair Value Hedging [Member] |  |  |
Derivative [Line Items] |  |  |
Total Net OCI |  | (397) | (110)
Interest Rate Swaps [Member] | Other Noncurrent Assets [Member] | Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Noncurrent |  | 83 |
Net Tax Effect |  | (30) |
Total Net OCI |  | 53 |
Interest Rate Swaps [Member] | Other Long-Term Liability [Member] | Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Liability, Noncurrent |  | (60) | (448)
Net Tax Effect |  | 17 | 115
Total Net OCI |  | (43) | (333)
Forward Foreign Exchange Contracts [Member] | Other Current Assets [Member] | Fair Value Hedging [Member] |  |  |
Derivative [Line Items] |  |  |
Total Net OCI | [1] | 2 |
Forward Foreign Exchange Contracts [Member] | Other Accrued Expenses [Member] | Fair Value Hedging [Member] |  |  |
Derivative [Line Items] |  |  |
Total Net OCI | [1] | (308) |
Forward Foreign Exchange Contracts [Member] | Fair Value, Inputs, Level 2 [Member] | Other Current Assets [Member] | Not Designated as Hedging Instrument [Member] | Recurring [Member] | Fair Value Hedging [Member] |  |  |
Derivative [Line Items] |  |  |
Total Net OCI |  | 3 | 34
Forward Foreign Exchange Contracts [Member] | Fair Value, Inputs, Level 2 [Member] | Other Accrued Expenses [Member] | Not Designated as Hedging Instrument [Member] | Recurring [Member] | Fair Value Hedging [Member] |  |  |
Derivative [Line Items] |  |  |
Total Net OCI |  | (400) | (144)
Cross-Currency Interest Rate Swaps [Member] | Other Noncurrent Assets [Member] | Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Noncurrent |  | 2,596 | 3,224
Net Tax Effect |  | (943) | (1,248)
Total Net OCI |  | 1,653 | 1,976
Cross-Currency Interest Rate Swaps [Member] | Other Long-Term Liability [Member] | Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Liability, Noncurrent |  | (540) | (1,066)
Net Tax Effect |  | 162 | 320
Total Net OCI |  | $ (378) | $ (746)
[1] | The net amount is included as part of the total net fair value of non-deliverable forward foreign exchange currency contracts designated as hedging instruments that do not qualify for derivative hedge accounting.

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