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ACCOUNTING POLICIES - Recently Adopted Accounting Pronouncements (Details) - USD ($) $ in Thousands | 3 Months Ended
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Nov. 30, 2018 | Nov. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Reductions in operating cash flows | $ (357,623) | $ (120,159)
Increases in investing cash flows | (357,444) | 22,116
Reclassification of repayments of advances outstanding | 0 | 90,000
Cumulative effect on retained earnings of adoption of ASC 606 | (2,747) |
Accounting Standards Update 2016-15 |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Reductions in operating cash flows | (367,500) | (176,000)
Increases in investing cash flows | $ 367,500 | 176,000
Reclassification of repayments of advances outstanding |  | $ 90,000

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