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Goodwill And Other Intangible Assets (Expected Amortization Expense Relating To Existing Intangible Assets) (Details)
$ in Thousands
Jul. 31, 2015
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2016 $ 5,711
2017 5,573
2018 4,360
2019 3,809
2020 3,721
Thereafter $ 12,813