Goodwill And Other Intangible Assets (Summary Of Changes in Carrying Amounts of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Nov. 30, 2014
Goodwill [Line Items]
Balance, beginning	$ 95,499us-gaap_Goodwill
GT85 acquisiton	1,309us-gaap_GoodwillAcquiredDuringPeriod
Translation adjustments	(290)us-gaap_GoodwillTranslationAdjustments
Balance, ending	96,518us-gaap_Goodwill
Americas [Member]
Goodwill [Line Items]
Balance, beginning	85,581
Translation adjustments	(33)
Balance, ending	85,548
EMEA [Member]
Goodwill [Line Items]
Balance, beginning	8,707
GT85 acquisiton	1,309
Translation adjustments	(257)
Balance, ending	9,759
Asia-Pacific [Member]
Goodwill [Line Items]
Balance, beginning	1,211
GT85 acquisiton
Translation adjustments
Balance, ending	$ 1,211

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

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- Definition

Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

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