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Goodwill And Other Intangible Assets (Schedule Of Future Estimated Amortization Expense) (Details) - USD ($)
$ in Thousands
May. 31, 2015
Aug. 31, 2014
Finite-Lived Intangible Assets [Line Items]    
Net carrying amount $ 23,749 $ 23,671
Trade Names [Member]    
Finite-Lived Intangible Assets [Line Items]    
Remainder of fiscal year 2015 618  
Fiscal year 2016 2,455  
Fiscal year 2017 2,455  
Fiscal year 2018 2,455  
Fiscal year 2019 2,455  
Thereafter 10,547  
Net carrying amount 20,985  
Customer-Related [Member]    
Finite-Lived Intangible Assets [Line Items]    
Remainder of fiscal year 2015 133  
Fiscal year 2016 534  
Fiscal year 2017 533  
Fiscal year 2018 533  
Fiscal year 2019 309  
Thereafter 592  
Net carrying amount 2,634  
Technology-Based [Member]    
Finite-Lived Intangible Assets [Line Items]    
Remainder of fiscal year 2015 10  
Fiscal year 2016 40  
Fiscal year 2017 40  
Fiscal year 2018 40  
Net carrying amount $ 130