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Goodwill And Other Intangible Assets (Schedule Of Future Estimated Amortization Expense) (Details) - USD ($)
$ in Thousands
Feb. 29, 2016
Aug. 31, 2015
Finite-Lived Intangible Assets [Line Items]    
Net carrying amount $ 20,914 $ 22,961
Trade Names [Member]    
Finite-Lived Intangible Assets [Line Items]    
Remainder of fiscal year 2016 1,220  
Fiscal year 2017 2,429  
Fiscal year 2018 2,429  
Fiscal year 2019 2,429  
Fiscal year 2020 2,034  
Thereafter 8,280  
Net carrying amount 18,821  
Customer-Based [Member]    
Finite-Lived Intangible Assets [Line Items]    
Remainder of fiscal year 2016 239  
Fiscal year 2017 478  
Fiscal year 2018 478  
Fiscal year 2019 277  
Fiscal year 2020 177  
Thereafter 354  
Net carrying amount 2,003  
Technology [Member]    
Finite-Lived Intangible Assets [Line Items]    
Remainder of fiscal year 2016 18  
Fiscal year 2017 36  
Fiscal year 2018 36  
Net carrying amount $ 90