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INCOME TAX (Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2016
Aug. 31, 2015
Aug. 31, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Unrecognized Tax Benefits, Beginning Balance $ 27,349 $ 27,349 $ 28,551
Change in tax positions of current year 0 0 0
Change for tax positions of prior years 0 0 (1,202)
Reductions due to settlements with taxing authorities (17,827) 0 0
Unrecognized Tax Benefits, Ending Balance $ 9,522 $ 27,349 $ 27,349