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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 28, 2017 | Feb. 29, 2016 | Feb. 28, 2017 | Feb. 29, 2016
Income Tax Disclosure Additional Details [Table] [Line Items] |  |  |  |
Asset Impairment Charges | $ 0 | $ 186,511 | $ 0 | $ 186,511
Asset Impairment Charge Net of Income Tax Benefit |  |  |  | 169,100
Earnings (loss) before income taxes | 5,274 | (179,216) | 7,241 | (161,581)
Income tax expense (benefit) | $ 200 | $ (20,026) | $ (2,798) | $ (17,839)
Effective Income Tax Rate Reconciliation, Percent | 3.80% | 11.20% | (38.60%) | 11.00%
Document Period End Date |  |  | Feb. 28, 2017 |
Adjusted Effective Tax Rate | 3.80% | (35.60%) | (38.60%) | (1.60%)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  | 35.00% |
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent |  |  | 21.20% | 19.60%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent |  |  | 19.40% | 10.10%
Foreign Destination [Member] |  |  |  |
Income Tax Disclosure Additional Details [Table] [Line Items] |  |  |  |
Percent of Revenue (excluding impairment charge) from foreign jurisdictions |  |  | 85.00% | 85.00%

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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. + References No definition available. + Details
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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 + Details
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