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Warranties (Schedule Of Product Warranty Liability) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Product Warranties Disclosures [Abstract]    
Product warranty accrual balance, beginning of period $ 8,411 $ 7,443
Liabilities accrued for warranties during the period 5,228 6,914
Warranty claims paid during the period (5,848) (6,312)
Changes in estimates 141 366
Transfers to liabilities held-for-sale and divested businesses (823)  
Product warranty accrual balance, end of period $ 7,109 $ 8,411