Warranties (Schedule Of Product Warranty Liability) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Feb. 28, 2017	Feb. 29, 2016	Feb. 28, 2017	Feb. 29, 2016
Warranties [Abstract]
Product warranty accrual balance, beginning of period	$ 7,572	$ 6,285	$ 7,443	$ 7,271
Liabilities accrued for warranties during the period	860	586	1,861	1,944
Warranty claims paid during the period	(1,420)	(725)	(2,621)	(2,586)
Changes in estimates	(74)	285	255	(198)
Product warranty accrual balance, end of period	$ 6,938	$ 6,431	$ 6,938	$ 6,431

No definition available.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph ((c)(5))
-URI http://asc.fasb.org/extlink&oid=51674963&loc=d3e12565-110249

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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- Definition

Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties.

+ References

+ Details

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- Definition

Total increases or decreases in the standard and extended product warranty liability during the period.

+ References

+ Details

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- Definition

Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period.

+ References

+ Details

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