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Product Warranty Costs (Tables)
 6 Months Ended
Feb. 28, 2017
Guarantees [Abstract]  
Schedule of Product Warranty Liability
The following is a rollforward of the product warranty reserve (in thousands):
 
Six Months Ended
 
February 28,
2017
 
February 29,
2016
Beginning balance
$
5,592

 
$
3,718

Provision for warranties
1,482

 
2,096

Warranty payments and costs incurred
(3,096
)
 
(2,297
)
Impact of changes in foreign currency rates
(101
)

(66
)
Ending balance
$
3,877

 
$
3,451