Goodwill and Other Intangibles - Segments (Details) $ in Thousands |
9 Months Ended |
|---|---|
|
May 31, 2016
USD ($)
segment
| |
| Changes in the carrying value of goodwill | |
| Balance at the beginning of the period | $ 44,123 |
| Foreign currency translation adjustment | (224) |
| Balance at the end of the period | $ 43,899 |
| Number of reportable segments | segment | 10 |
| Number of operating segments | segment | 2 |
| Construction Materials | |
| Changes in the carrying value of goodwill | |
| Balance at the beginning of the period | $ 10,733 |
| Foreign currency translation adjustment | (13) |
| Balance at the end of the period | 10,720 |
| Industrial Materials | |
| Changes in the carrying value of goodwill | |
| Balance at the beginning of the period | 33,390 |
| Foreign currency translation adjustment | (211) |
| Balance at the end of the period | $ 33,179 |