Summary Of Significant Accounting Policies (Components Of Inventory) (Details) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013
Summary Of Significant Accounting Policies [Abstract]
Raw materials	$ 112,522	$ 99,814
Work in process	17,256	29,097
Finished products	123,573	105,909
Total inventories	$ 253,351	$ 234,820