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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2019 | May 31, 2019 | Feb. 28, 2019 | Nov. 30, 2018 | Aug. 31, 2019 | Aug. 31, 2018 | Aug. 31, 2017
Income Tax Disclosure Additional Details [Table] [Line Items] |  |  |  |  |  |  |
Impairment & divestiture charges | $ 6,200 | $ (13,000) | $ 6,100 | $ 23,500 | $ 22,827 | $ 2,987 | $ 116,979
Non-cash impairment charge - domestic earnings |  |  |  |  | 9,000 |  |
Non-cash impairment charge - foreign earnings |  |  |  |  | 13,800 |  | 117,000
Deferred Tax Assets, Operating Loss Carryforward, State | 68,800 |  |  |  | 68,800 |  |
Deferred Tax Assets, Operating Loss Carryforwards, Foreign | $ 85,300 |  |  |  | 85,300 |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense |  |  |  |  | 3,700 | 3,000 | 2,900
Unrecognized Tax Benefits, Period Increase (Decrease), Reasonably Possible in Future Period |  |  |  |  | 2,400 |  |
Additional Income Tax Provision |  |  |  |  | 5,400 |  |
Director & officer transition charges |  |  |  |  | $ 0 | $ 0 | 7,784
Percent of Revenue (excluding impairment charge) from foreign jurisdictions |  |  |  |  | 70.00% | 80.00% |
Income taxes, net of refunds |  |  |  |  | $ 15,400 | $ (1,500) | $ 11,800

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