The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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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, 2015	Aug. 31, 2014	Aug. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Beginning balance	$ 23,671	$ 24,292
Amortization expense	(3,039)	(2,617)	$ (2,260)
Intangible assets acquired		1,819
Translation adjustments	(296)	177
Ending balance	22,961	23,671	24,292
Americas [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning balance	19,328	21,536
Amortization expense	(2,207)	(2,208)
Ending balance	17,121	19,328	21,536
EMEA [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning balance	4,343	2,756
Amortization expense	(832)	(409)
Intangible assets acquired		1,819
Translation adjustments	(296)	177
Ending balance	5,840	$ 4,343	$ 2,756
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Ending balance	20,354
Technology-Based [Member]
Finite-Lived Intangible Assets [Line Items]
Ending balance	119
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Ending balance	2,488
GT 85 Limited [Member] \| Customer-Related [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	1,570
GT 85 Limited [Member] \| Customer-Related [Member] \| EMEA [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	1,570
GT 85 Limited [Member] \| Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	896
GT 85 Limited [Member] \| Trade Names [Member] \| EMEA [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	896
GT 85 Limited [Member] \| Technology-Based [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	159
GT 85 Limited [Member] \| Technology-Based [Member] \| EMEA [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 159