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GOODWILL AND OTHER INTANGIBLE ASSETS (Changes in the Carrying Amount of Goodwill) (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
May 31, 2016 | Aug. 31, 2015
Goodwill [Line Items] |  |
Goodwill | $ 76,730 | $ 76,787
Accumulated impairment losses | (10,397) | (10,404)
Goodwill, net | 66,333 | 66,383
Foreign currency translation | (50) |
Americas Recycling |  |
Goodwill [Line Items] |  |
Goodwill | 9,751 | 9,751
Accumulated impairment losses | (9,751) | (9,751)
Goodwill, net | 0 | 0
Foreign currency translation | 0 |
Americas Mills |  |
Goodwill [Line Items] |  |
Goodwill | 4,970 | 4,970
Accumulated impairment losses | 0 | 0
Goodwill, net | 4,970 | 4,970
Foreign currency translation | 0 |
Americas Fabrication |  |
Goodwill [Line Items] |  |
Goodwill | 57,637 | 57,637
Accumulated impairment losses | (493) | (493)
Goodwill, net | 57,144 | 57,144
Foreign currency translation | 0 |
International Mill |  |
Goodwill [Line Items] |  |
Goodwill | 2,412 | 2,517
Accumulated impairment losses | (153) | (160)
Goodwill, net | 2,259 | 2,357
Foreign currency translation | (98) |
International Marketing and Distribution |  |
Goodwill [Line Items] |  |
Goodwill | 1,960 | 1,912
Accumulated impairment losses | 0 | 0
Goodwill, net | 1,960 | $ 1,912
Foreign currency translation | $ 48 |

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