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
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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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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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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.

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Changes in Carrying Value of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Feb. 29, 2016	May 31, 2016	May 31, 2015
Goodwill [Roll Forward]
Balance as of August 31, 2015		$ 608,256
Business acquisitions		45,121
Goodwill impairment charge	$ (118,122)	(118,462)	$ (77,992)
Impact of changes in foreign currency rates		(5,494)
Balance as of May 31, 2016		529,421
Industrial
Goodwill [Roll Forward]
Balance as of August 31, 2015		92,107
Business acquisitions		9,718
Goodwill impairment charge		0
Impact of changes in foreign currency rates		(97)
Balance as of May 31, 2016		101,728
Energy
Goodwill [Roll Forward]
Balance as of August 31, 2015		236,450
Business acquisitions		35,403
Goodwill impairment charge		(73,919)
Impact of changes in foreign currency rates		(4,493)
Balance as of May 31, 2016		193,441
Engineered Solutions
Goodwill [Roll Forward]
Balance as of August 31, 2015		279,699
Business acquisitions		0
Goodwill impairment charge		(44,543)
Impact of changes in foreign currency rates		(904)
Balance as of May 31, 2016		$ 234,252