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COMPANY OVERVIEW AND BASIS OF PRESENTATION (Schedule of Error Corrections and Prior Period Adjustment) (Details) - USD ($) $ in Thousands | Aug. 31, 2018 | Aug. 31, 2017
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Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |
Retained earnings | $ 473,954 | $ 420,866
Additional paid-in capital | $ 432,882 | 422,395
Previously Reported [Member] |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |
Retained earnings |  | 420,499
Additional paid-in capital |  | 422,762
Reclassified [Member] |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |
Retained earnings |  | 367
Additional paid-in capital |  | $ (367)

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- Definition Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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