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Goodwill And Other Intangible Assets (Schedule Of Future Estimated Amortization Expense) (Details) - USD ($) $ in Thousands | Aug. 31, 2017 | Aug. 31, 2016 | Aug. 31, 2015
--- | --- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |
Net carrying amount | $ 16,244 | $ 19,191 | $ 22,961
Trade Names [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Fiscal year 2018 | 2,419 |  |
Fiscal year 2019 | 2,414 |  |
Fiscal year 2020 | 2,019 |  |
Fiscal year 2021 | 1,230 |  |
Fiscal year 2022 | 1,229 |  |
Thereafter | 5,700 |  |
Net carrying amount | 15,011 |  |
Customer-Based [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Fiscal year 2018 | 446 |  |
Fiscal year 2019 | 259 |  |
Fiscal year 2020 | 165 |  |
Fiscal year 2021 | 165 |  |
Fiscal year 2022 | 165 |  |
Net carrying amount | 1,200 |  |
Technology [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Fiscal year 2018 | 33 |  |
Fiscal year 2019 |  |  |
Fiscal year 2020 |  |  |
Fiscal year 2021 |  |  |
Fiscal year 2022 |  |  |
Thereafter |  |  |
Net carrying amount | $ 33 |  |

X
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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