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Summary Of Significant Accounting Policies (Components Of Inventory) (Details) - USD ($)
$ in Thousands
Jul. 31, 2015
Jul. 31, 2014
Accounting Policies [Abstract]    
Raw materials $ 113,335 $ 112,522
Work in process 22,602 17,256
Finished products 129,018 123,573
Total inventories $ 264,955 $ 253,351