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Warranties (Schedule of Product Warranty Liability) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 29, 2020	Feb. 28, 2019	Feb. 29, 2020	Feb. 28, 2019
Product Warranties Disclosures [Abstract]
Product warranty accrual balance, beginning of period	$ 8,788	$ 7,240	$ 8,960	$ 7,109
Liabilities accrued for warranties during the period	2,135	1,652	3,616	2,830
Warranty claims paid during the period	(1,933)	(1,259)	(3,586)	(2,306)
Changes in estimates	0	338	0	338
Product warranty accrual balance, end of period	$ 8,990	$ 7,971	$ 8,990	$ 7,971

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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.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
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-Topic 460
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Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty.

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Amount of increase (decrease) in the standard and extended product warranty liability.

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Amount of increase in the standard and extended product warranty accrual from warranties issued.

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