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FAIR VALUE (Financial Assets and Liabilities Not Required to Be Measured at Fair Value) (Details) - USD ($) $ in Thousands | Nov. 30, 2019 | Aug. 31, 2019
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Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Financial liabilities | $ 1,203,006 | $ 1,254,921
2027 Notes |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Financial liabilities | 300,000 | 300,000
2027 Notes | Level 2 | Fair Value |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Financial liabilities | 310,398 | 303,810
2026 Notes |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Financial liabilities | 350,000 | 350,000
2026 Notes | Level 2 | Fair Value |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Financial liabilities | 365,159 | 363,444
2023 Notes |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Financial liabilities | 330,000 | 330,000
2023 Notes | Level 2 | Fair Value |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Financial liabilities | 344,061 | 342,098
Short-term borrowings |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Financial liabilities | 0 | 3,929
Short-term borrowings | Level 2 | Fair Value |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Financial liabilities | 0 | 3,929
Revolving credit facility | Term Loans |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Financial liabilities | 160,125 | 210,125
Revolving credit facility | Term Loans | Level 2 | Fair Value |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Financial liabilities | $ 160,125 | $ 210,125

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