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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 9 Months Ended
May 31, 2014
May 31, 2013
May 31, 2014
May 31, 2013
Revenue from External Customer [Line Items]        
Net sales $ 95,650 $ 93,103 $ 285,375 $ 275,079
Multi-purpose maintenance products [Member]
       
Revenue from External Customer [Line Items]        
Net sales 84,817 82,150 252,607 239,343
Homecare and cleaning products [Member]
       
Revenue from External Customer [Line Items]        
Net sales $ 10,833 $ 10,953 $ 32,768 $ 35,736