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Goodwill And Other Intangible Assets (Summary Of Changes In Carrying Amounts Of Definite-Lived Intangible Assets By Segment) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Aug. 31, 2016 | Aug. 31, 2015 | Aug. 31, 2014
Finite-Lived Intangible Assets [Line Items] |  |  |
Beginning balance | $ 22,961 | $ 23,671 |
Amortization expense | (2,976) | (3,039) | $ (2,617)
Translation adjustments | (794) | (296) |
Ending balance | 19,191 | 22,961 | 23,671
Americas [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Beginning balance | 17,121 | 19,328 |
Amortization expense | (2,208) | (2,207) |
Translation adjustments |  |  |
Ending balance | 14,913 | 17,121 | 19,328
EMEA [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Beginning balance | 5,840 | 4,343 |
Amortization expense | (768) | (832) |
Translation adjustments | (794) | (296) |
Ending balance | 4,278 | 5,840 | 4,343
Asia-Pacific [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Beginning balance |  |  |
Amortization expense |  |  |
Translation adjustments |  |  |
Ending balance |  |  |
Customer Relationships [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Ending balance | 1,667 |  |
Customer Relationships [Member] | GT 85 Limited [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  | 1,570 |
Customer Relationships [Member] | GT 85 Limited [Member] | Americas [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  |  |
Customer Relationships [Member] | GT 85 Limited [Member] | EMEA [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  | 1,570 |
Customer Relationships [Member] | GT 85 Limited [Member] | Asia-Pacific [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  |  |
Trade Names [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Ending balance | 17,457 |  |
Trade Names [Member] | GT 85 Limited [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  | 896 |
Trade Names [Member] | GT 85 Limited [Member] | Americas [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  |  |
Trade Names [Member] | GT 85 Limited [Member] | EMEA [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  | 896 |
Trade Names [Member] | GT 85 Limited [Member] | Asia-Pacific [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  |  |
Technology [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Ending balance | $ 67 |  |
Technology [Member] | GT 85 Limited [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  | 159 |
Technology [Member] | GT 85 Limited [Member] | Americas [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  |  |
Technology [Member] | GT 85 Limited [Member] | EMEA [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  | 159 |
Technology [Member] | GT 85 Limited [Member] | Asia-Pacific [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  |  |

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