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Gross Carrying Value and Accumulated Amortization of Intangible Assets (Detail) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Aug. 31, 2016 | Aug. 31, 2015
Indefinite And Finite Lived Intangible Assets [Line Items] |  |
Finite-Lived Accumulated Amortization | $ 202,311 | $ 165,486
Intangible assets, gross | 441,786 | 474,248
Intangible assets, net | 239,475 | 308,762
Trade Names |  |
Indefinite And Finite Lived Intangible Assets [Line Items] |  |
Indefinite-Lived Intangible Assets, Gross | 90,909 | 112,437
Customer Relationships |  |
Indefinite And Finite Lived Intangible Assets [Line Items] |  |
Finite-Lived Intangible Assets, Gross | 292,671 | 302,518
Finite-Lived Accumulated Amortization | 166,252 | 132,007
Net Book Value | $ 126,419 | 170,511
Weighted Average Amortization Period | 14 years |
Patents |  |
Indefinite And Finite Lived Intangible Assets [Line Items] |  |
Finite-Lived Intangible Assets, Gross | $ 30,296 | 30,899
Finite-Lived Accumulated Amortization | 22,233 | 19,928
Net Book Value | $ 8,063 | 10,971
Weighted Average Amortization Period | 10 years |
Trademarks and Tradenames |  |
Indefinite And Finite Lived Intangible Assets [Line Items] |  |
Finite-Lived Intangible Assets, Gross | $ 21,283 | 21,604
Finite-Lived Accumulated Amortization | 7,936 | 7,055
Net Book Value | $ 13,347 | 14,549
Weighted Average Amortization Period | 18 years |
Non-Compete Agreements and Other |  |
Indefinite And Finite Lived Intangible Assets [Line Items] |  |
Finite-Lived Intangible Assets, Gross | $ 6,627 | 6,790
Finite-Lived Accumulated Amortization | 5,890 | 6,496
Net Book Value | $ 737 | 294
Weighted Average Amortization Period | 3 years |
Indefinite-Lived Intangible Assets, Gross | $ 0 | $ 0

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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 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=26713463&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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