Rollforward of Accrued Product Warranty Reserve (Details) - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
May 31, 2016 |
May 31, 2015 |
|
| Movement in Standard Product Warranty Accrual [Roll Forward] | ||
| Beginning balance | $ 3,718 | $ 4,056 |
| Provision for warranties | 3,225 | 4,198 |
| Warranty reserve for acquired businesses | 3 | 0 |
| Warranty payments and costs incurred | (3,155) | (3,505) |
| Impact of changes in foreign currency rates | (35) | (589) |
| Ending balance | $ 3,756 | $ 4,160 |