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DEBT (Schedule of Long-Term Debt) (Details) - USD ($) $ in Thousands | Aug. 31, 2017 | Aug. 31, 2016
--- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Total | $ 106,297 | [1] | $ 88,107 | [2]
Less: current portion | 18,358 |  | 14,565 |
Long-term debt, net of current portion | 87,939 |  | 73,542 |
Long term debt with balloon payment [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total | 18,200 |  | 21,945 |
Interest Rate Swap With Non-Cash Assets And/Or Cash Or Cash Equivalents [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total | 49,424 |  | 32,258 |
Non-Cash Assets And/Or Cash Or Cash Equivalents [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total | 17,585 |  | 9,717 |
Cross Currency Interest Rate Swap With Non-Cash Assets And/Or Cash Or Cash Equivalents [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total | $ 21,088 |  | $ 24,187 |
[1] | The carrying amount on non-cash assets assigned as collateral for these loans was $128.4 million. No cash assets were assigned as collateral for these loans as of August 31, 2017.
[2] | The carrying amount on non-cash assets assigned as collateral for these loans was $102.4 million. No cash assets were assigned as collateral for these loans.

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