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Goodwill And Other Intangible Assets (Schedule Of Intangible Assets Finite and Infinite Excluding Goodwill) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Aug. 31, 2018 | Aug. 31, 2017
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 3 years 8 months 12 days | 5 years 1 month 6 days
Total, gross carrying amount | $ 56,834 | $ 76,698
Amortizable intangible assets: accumulated amortization | (29,457) | (33,890)
Tradenames [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Unamortizable intangible assets: gross carrying amount | $ 12,297 | $ 20,121
Patents and Developed Technology [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 3 years 2 months 12 days | 5 years 1 month 6 days
Amortizable intangible assets: gross carrying amount | $ 26,831 | $ 34,038
Amortizable intangible assets: accumulated amortization | $ (19,656) | $ (21,581)
Customer Relationships [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 5 years 2 months 12 days | 5 years 9 months 18 days
Amortizable intangible assets: gross carrying amount | $ 16,459 | $ 19,975
Amortizable intangible assets: accumulated amortization | $ (8,668) | $ (10,419)
Non-compete Agreements [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 4 months 24 days | 1 year 7 months 6 days
Amortizable intangible assets: gross carrying amount | $ 1,137 | $ 2,354
Amortizable intangible assets: accumulated amortization | $ (1,048) | $ (1,806)
Other Intangible Assets [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 1 year 1 month 6 days | 8 years 9 months 18 days
Amortizable intangible assets: gross carrying amount | $ 110 | $ 210
Amortizable intangible assets: accumulated amortization | $ (85) | $ (84)

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- Definition Finite and indefinite intangible assets. + References No definition available. + Details
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- Definition Intangible assets, gross carrying amount. + References No definition available. + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of 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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- Definition Amount before 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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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + 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 (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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