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Rollforward of Accrued Product Warranty Reserve (Details) - USD ($)
$ in Thousands
6 Months Ended
Feb. 28, 2019
Feb. 28, 2018
Movement in Standard Product Warranty Accrual [Roll Forward]    
Beginning balance $ 4,417 $ 6,616
Provision for warranties 3,059 3,403
Warranty Payments and costs incurred (2,960) (3,582)
Activity for Divested Businesses (160) 0
Reclass of Liabilities Held for Sale (33) 0
Impact of changes in foreign currency rates 28 213
Ending Balance $ 4,351 $ 6,650