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Commitments And Contingencies (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Nov. 30, 2014	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2012
Commitments And Contingencies [Abstract]
Lease expense		$ 4.5	$ 4.0	$ 3.9
Environmental Remediation Expense					$ 7.2
Environmental remediation, incremental costs	$ 1.5

X

- Definition

The Increase or Decrease in the accrual for environmental loss in the period from revisions in estimates to existing obligations. The amount does not relate to changes in the environmental accrual related to business acquisitions or divestitures, or to currency movements.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 450



-SubTopic 20



-Section S99



-Paragraph 1



-Subparagraph (SAB TOPIC 5.Y.Q2)



-URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

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Namespace Prefix:	us-gaap_
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Period Type:	duration

X

- Definition

The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 410



-SubTopic 30



-Section 50



-Paragraph 12



-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13296-110859



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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 230



-SubTopic 10



-Section 45



-Paragraph 28



-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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X

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration