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INCOME TAX (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 28, 2019 | Feb. 28, 2018 | Feb. 28, 2019 | Feb. 28, 2018 | Aug. 31, 2018
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Effective income tax rate from continuing operations | 54.90% | 15.00% | 40.90% | 19.60% |
Blended federal statutory income tax rate (percent) |  |  |  | 25.70% |
Effective tax rate from discontinued operation (percent) |  |  |  | 36.60% |
Unrecognized income tax benefits | $ 6.2 |  | $ 6.2 |  | $ 3.1
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit) |  |  |  |  | $ 11.0
Tax Cuts And Jobs Act Of 2017, Additional Income Tax Expense (Benefit) | $ 7.6 |  |  |  |
Poland |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Statutory income tax rate |  |  | 19.00% |  |

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