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Goodwill And Other Intangible Assets (Carrying Amount In Goodwill By Segments) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 37,414	$ 29,961
Acquisition/Finalization of CLC acquisition	(403)	7,257
Foreign currency translation	10	196
Goodwill, Ending Balance	37,021	37,414
Irrigation [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	20,667	13,476
Acquisition/Finalization of CLC acquisition	(403)	7,257
Foreign currency translation	29	(66)
Goodwill, Ending Balance	20,293	20,667
Infrastructure [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	16,747	16,485
Foreign currency translation	(19)	262
Goodwill, Ending Balance	$ 16,728	$ 16,747

X

- Definition

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.

+ References

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

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X

- 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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- Details

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X

- 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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