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Goodwill And Other Intangible Assets (Expected Amortization Expense Relating To Existing Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
Jul. 31, 2012
Goodwill And Other Intangible Assets [Abstract]  
2013 $ 5,418
2014 5,045
2015 4,950
2016 4,948
2017 $ 4,530