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Business Segments And Foreign Operations (Net Sales And Long-Lived Assets By Geographical Area) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2015
Aug. 31, 2014
Aug. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales $ 378,150 $ 382,997 $ 368,548
Long-lived assets [1] 11,376 9,702 8,535
United States [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 153,116 147,033 145,233
Long-lived assets [1] 5,955 4,470 4,223
Other International [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 225,034 235,964 223,315
Long-lived assets [1] $ 5,421 $ 5,232 $ 4,312
[1] Includes tangible assets and property and equipment, net, attributed to the geographic location in which such assets are located.