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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Reclassification out of accumulated other comprehensive income (loss)) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Aug. 31, 2016
Unrealized gain (loss) on derivatives:      
Net of income taxes $ 279 $ 1,355 $ 1,737
Foreign currency translation adjustments and other      
Foreign currency translation adjustments and other:      
Translation Gain (loss) realized upon liquidation or sale of investment in foreign entity (2,079) (968) (12,597)
Foreign currency translation adjustments and other | SG&A expenses      
Foreign currency translation adjustments and other:      
Translation Gain (loss) realized upon liquidation or sale of investment in foreign entity 0 (968) 0
Foreign currency translation adjustments and other | Discontinued operations      
Foreign currency translation adjustments and other:      
Translation Gain (loss) realized upon liquidation or sale of investment in foreign entity $ (2,079) $ 0 $ (12,597)