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Goodwill And Other Intangible Assets (Schedule Of Intangible Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Aug. 31, 2015 | Aug. 31, 2014
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 12 years 1 month 6 days | 10 years
Total, gross carrying amount | $ 77,173 | $ 53,189
Amortizable intangible assets: accumulated amortization | (25,253) | (21,209)
Tradenames [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Unamortizable intangible assets: gross carrying amount | $ 20,121 | $ 13,122
Patents and Developed Technology [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 14 years 3 months 18 days | 13 years
Amortizable intangible assets: gross carrying amount | $ 33,741 | $ 30,282
Amortizable intangible assets: accumulated amortization | $ (16,473) | $ (14,687)
Customer Relationships [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 12 years 2 months 12 days | 7 years 4 months 24 days
Amortizable intangible assets: gross carrying amount | $ 19,958 | $ 7,932
Amortizable intangible assets: accumulated amortization | $ (6,884) | $ (5,304)
Non-compete Agreements [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 10 years 4 months 24 days | 5 years 7 months 6 days
Amortizable intangible assets: gross carrying amount | $ 2,343 | $ 1,336
Amortizable intangible assets: accumulated amortization | $ (1,044) | $ (852)
Other Intangible Assets [Member] |  |
Finite And Indefinite Intangible Assets [Line Items] |  |
Amortizable intangible assets: weighted average years | 1 year 10 months 24 days | 1 year 7 months 6 days
Amortizable intangible assets: gross carrying amount | $ 1,010 | $ 517
Amortizable intangible assets: accumulated amortization | $ (852) | $ (366)

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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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