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Commitments And Contingencies (Summary Of Undiscounted Environmental Remediation Liability Classifications) (Details) - USD ($) $ in Thousands	Nov. 30, 2018	Aug. 31, 2018	Nov. 30, 2017
Commitments And Contingencies Disclosure [Abstract]
Other current liabilities	$ 1,243	$ 1,264	$ 1,616
Other noncurrent liabilities	15,142	15,319	15,825
Total environmental remediation liabilities	$ 16,385	$ 16,583	$ 17,441

X

- Definition

Undiscounted amount of the accrual for environmental loss contingencies.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 7
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-Publisher FASB
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-Section S99
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-Subparagraph (SAB Topic 5.Y.Q1)
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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

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-Name Accounting Standards Codification
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-Paragraph 1
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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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