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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Aug. 31, 2015
Aug. 31, 2014
Consolidated Balance Sheets [Abstract]    
Receivables, allowance $ 9,706 $ 2,857
Other noncurrent assets, allowance $ 0 $ 2,000
Preferred stock, par value $ 1 $ 1
Preferred stock, authorized 2,000,000 2,000,000
Preferred stock, issued 0 0
Preferred stock, outstanding 0 0
Common stock, par value $ 1 $ 1
Common stock, authorized 25,000,000 25,000,000
Common stock, issued 18,684,000 18,636,000
Treasury stock, shares 7,394,000 6,196,000