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Note 7. Segment Information (Detail) (USD $)
In Thousands, unless otherwise specified
Nov. 30, 2012
Aug. 31, 2012
Goodwill (in Dollars) $ 246,734 $ 245,791
United States [Member]
   
Goodwill (in Dollars) 167,822 167,817
Goodwill Percentage Per Segment 68.00%  
European [Member]
   
Goodwill Percentage Per Segment 30.00%  
Asia Pacific [Member]
   
Goodwill (in Dollars) $ 3,958 $ 4,168
Goodwill Percentage Per Segment 2.00%