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Goodwill And Other Intangible Assets (Summary Of Changes in Carrying Amounts of Goodwill) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Aug. 31, 2013
Aug. 31, 2012
Goodwill [Line Items]    
Balance, beginning $ 95,318 $ 95,452
Translation adjustments (82) (134)
Balance, ending 95,236 95,318
Americas [Member]
   
Goodwill [Line Items]    
Balance, beginning 85,558 85,578
Translation adjustments (13) (20)
Balance, ending 85,545 85,558
EMEA [Member]
   
Goodwill [Line Items]    
Balance, beginning 8,549 8,663
Translation adjustments (69) (114)
Balance, ending 8,480 8,549
Asia-Pacific [Member]
   
Goodwill [Line Items]    
Balance, beginning 1,211 1,211
Translation adjustments      
Balance, ending $ 1,211 $ 1,211