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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, 2016 | Aug. 31, 2015
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 5 years 8 months 12 days | 6 years 8 months 12 days
Total, gross carrying amount | $ 76,387 | $ 77,173
Amortizable intangible assets: accumulated amortization | (29,187) | (25,253)
Tradenames [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Unamortizable intangible assets: gross carrying amount | $ 20,114 | $ 20,121
Patents and Developed Technology [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 6 years 1 month 6 days | 7 years 3 months 18 days
Amortizable intangible assets: gross carrying amount | $ 33,732 | $ 33,741
Amortizable intangible assets: accumulated amortization | $ (18,893) | $ (16,473)
Customer Relationships [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 6 years | 8 years
Amortizable intangible assets: gross carrying amount | $ 19,952 | $ 19,958
Amortizable intangible assets: accumulated amortization | $ (8,747) | $ (6,884)
Non-compete Agreements [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 2 years 2 months 12 days | 5 years 9 months 18 days
Amortizable intangible assets: gross carrying amount | $ 2,350 | $ 2,343
Amortizable intangible assets: accumulated amortization | $ (1,450) | $ (1,044)
Other Intangible Assets [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 9 years 6 months | 3 months 18 days
Amortizable intangible assets: gross carrying amount | $ 239 | $ 1,010
Amortizable intangible assets: accumulated amortization | $ (97) | $ (852)

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- Definition Finite And Indefinite Intangible Assets [Line Items] + 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=26713463&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=26713463&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=26713463&loc=d3e16323-109275 + Details
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