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Warranties (Schedule of Product Warranty Liability) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2020
Aug. 31, 2019
Product Warranties Disclosures [Abstract]    
Product warranty accrual balance, beginning of period $ 8,960 $ 7,109
Liabilities accrued for warranties during the period 7,895 7,263
Warranty claims paid during the period (6,970) (5,769)
Changes in estimates 880 357
Product warranty accrual balance, end of period $ 10,765 $ 8,960