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Accumulated Other Comprehensive Loss (Schedule Of Accumulated Other Comprehensive Loss ) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 31, 2015
Aug. 31, 2014
Aug. 31, 2013
Accumulated Other Comprehensive Loss [Abstract]      
Defined benefit pension plan, net of tax of $1,540 and $1,524 $ (2,523) $ (2,497)  
Foreign currency translation, net of hedging activities, net of tax of $3,154 and $1,688 (12,785) 296  
Total accumulated other comprehensive loss (15,308) (2,201) $ (2,316)
Defined benefit pension tax 1,540 1,524  
Foreign currency adjustment tax $ 3,154 $ 1,688