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Business Segments And Foreign Operations (Schedule Of Net Sales By Product Group) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Nov. 30, 2013
Nov. 30, 2012
Revenue from External Customer [Line Items]    
Net sales $ 95,541 $ 95,264
Multi-purpose maintenance products [Member]
   
Revenue from External Customer [Line Items]    
Net sales 83,986 81,746
Homecare and cleaning products [Member]
   
Revenue from External Customer [Line Items]    
Net sales $ 11,555 $ 13,518