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Commitments And Contingencies (Summary Of Undiscounted Environmental Remediation Liability Classifications) (Details) - USD ($) $ in Thousands	Nov. 30, 2016	Aug. 31, 2016	Nov. 30, 2015
Commitments And Contingencies [Abstract]
Other current liabilities	$ 1,122	$ 722	$ 1,343
Other noncurrent liabilities	17,714	18,255	6,100
Total environmental remediation liabilities	$ 18,836	$ 18,977	$ 7,443

X

- Definition

Undiscounted amount of the accrual for environmental loss contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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- Definition

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

+ References

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

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