Income Taxes (Components Of The Provision For Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Apr. 30, 2015	Jan. 31, 2015	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2013
Income Tax Disclosure [Abstract]
Federal, Current			$ 28,482	$ 48,981	$ 35,820
State, Current			2,956	4,724	4,337
Foreign, Current			54,665	54,536	52,300
Income taxes, Current			86,103	108,241	92,457
Federal, Deferred			(4,232)	(9,465)	7,071
State, Deferred			94	365	312
Foreign, Deferred			(1,473)	1,338	964
Income taxes, Deferred			(5,611)	(7,762)	8,347
Total	$ 20,073	$ 17,469	$ 80,492	$ 100,479	$ 100,804