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INCOME TAX (Reconciliation of Federal Statutory Rate to Effective Tax Rate from Continuing Operations) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Aug. 31, 2018 | Aug. 31, 2017 | Aug. 31, 2016
Income Tax Contingency [Line Items] |  |  |
Blended Federal statutory rate (percent) | 25.70% |  |
Federal statutory tax rate (percent) |  | 35.00% | 35.00%
Income tax expense at statutory rate | $ 42,471 | $ 22,908 | $ 26,592
TCJA - Toll charge and related foreign tax credits | 29,466 | 0 | 0
TCJA - Remeasurement of deferred tax balances | (25,515) | 0 | 0
Foreign tax impairment on valuation of subsidiaries (1) | 22,315 | (92,321) | (60,204)
Gain on international restructure (1) | 18,926 | 0 | 0
Change in valuation allowance | (20,839) | 113,135 | 75,822
Nontaxable foreign interest (1) | (17,414) | (19,259) | (16,063)
Worthless stock deduction (2) | (6,084) | 0 | 0
Foreign rate differential (3) | (5,973) | (7,518) | (1,719)
Research and experimentation credits | 4,707 | 1,034 | 1,357
Audit settlement (4) | (3,187) | (659) | (10,264)
State and local taxes | 2,317 | 1,490 | 2,185
Deferred compensation (5) | (2,036) | (2,101) | (1,375)
Section 199 manufacturing deduction | 0 | (1,407) | (4,694)
Other | 407 | 2,042 | 5,053
Income tax expense on continuing operations | $ 30,147 | $ 15,276 | $ 13,976
Effective income tax rate from continuing operations | 18.20% | 23.30% | 18.40%
Poland |  |  |
Income Tax Contingency [Line Items] |  |  |
Federal statutory tax rate (percent) | 19.00% |  |

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