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Retirement Plans (Schedule Of Amounts Recognized In The Statement Of Financial Position) (Details) - USD ($)
$ in Thousands
Aug. 31, 2015
Aug. 31, 2014
Aug. 31, 2013
Retirement Plans [Abstract]      
Other current liabilities $ 557 $ 557  
Pension benefit liabilities 6,569 6,600  
Net amount recognized $ 7,126 $ 7,157 $ 6,881