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GOODWILL AND OTHER INTANGIBLE ASSETS (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Nov. 30, 2017 | Nov. 30, 2016 | Aug. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amounts of the intangible assets subject to amortization | $ 21.7 |  | $ 19.7
Amortization expense for intangible assets | 0.5 | $ 0.3 |
Patents |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Patents acquired | $ 7.0 |  |
Useful life of patents acquired | 7 years 6 months |  |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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