Note 10 - Changes in the Carrying Amount of Goodwill by Segment (Details) $ in Thousands	9 Months Ended
May 31, 2016 USD ($)
UNITED STATES
Balance	$ 211,869
Goodwill, Acquired During Period	188,417
Foreign currency translations
Assets held for sale	(31,741)
Other adjustments	(25)
Balance	368,520
Europe [Member]
Balance	93,725
Goodwill, Acquired During Period
Foreign currency translations	(4,129)
Assets held for sale	(665)
Other adjustments
Balance	88,931
Asia Pacific [Member]
Balance	2,693
Goodwill, Acquired During Period
Foreign currency translations	249
Assets held for sale
Other adjustments
Balance	2,942
Balance	308,287
Goodwill, Acquired During Period	188,417
Foreign currency translations	(3,880)
Assets held for sale	(32,406)
Other adjustments	(25)
Balance	$ 460,393

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
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&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

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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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.

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