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FAIR VALUE FAIR VALUE (Financial Assets and Liabilities Not Required to Be Measured at Fair Value) (Details) - USD ($) $ in Thousands | Aug. 31, 2015 | Aug. 31, 2014
--- | --- | ---
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Financial liabilities |  | $ 1,287,992 | $ 1,289,047
$400 million notes at 6.50% due July 2017 |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Financial liabilities |  | 405,573 | 408,546
$400 million notes at 6.50% due July 2017 | Level 2 | Carrying Value |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Financial liabilities | [1] |  | 408,546
$400 million notes at 6.50% due July 2017 | Level 2 | Fair Value |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Financial liabilities | [1] | 419,400 | 438,200
$500 million notes at 7.35% due August 2018 |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Financial liabilities |  | 513,680 | 518,305
$500 million notes at 7.35% due August 2018 | Level 2 | Carrying Value |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Financial liabilities | [1] |  | 518,305
$500 million notes at 7.35% due August 2018 | Level 2 | Fair Value |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Financial liabilities | [1] | 530,000 | 567,560
$330 million notes at 4.875% due May 2023 |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Financial liabilities |  | 330,000 | 330,000
$330 million notes at 4.875% due May 2023 | Level 2 | Carrying Value |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Financial liabilities | [1] |  | 330,000
$330 million notes at 4.875% due May 2023 | Level 2 | Fair Value |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Financial liabilities | [1] | $ 300,630 | $ 325,050
[1] | (1) The fair value of the notes is determined based on indicated market values.

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