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Business Segments And Foreign Operations (Schedule Of Net Sales By Product Line) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Aug. 31, 2014
Aug. 31, 2013
Aug. 31, 2012
Revenue from External Customer [Line Items]      
Net sales $ 382,997 $ 368,548 $ 342,784
Multi-purpose maintenance products [Member]
     
Revenue from External Customer [Line Items]      
Net sales 337,825 320,883 286,480
Homecare and cleaning products [Member]
     
Revenue from External Customer [Line Items]      
Net sales $ 45,172 $ 47,665 $ 56,304