Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2013
Income Tax Disclosure [Abstract]
Income Tax Examination, Penalties and Interest Expense	$ 1,400	$ 100	$ 0
Unrecognized tax benefits, beginning balance	46,973	26,205	26,271
Additions based on tax positions related to the current year	0	21,082	0
Additions for tax positions of prior years	17,443	0	0
Reductions for tax positions of prior years	(21,574)	0	0
Lapse of statute of limitations	0	(314)	(66)
Settlements	(4,270)	0	0
Unrecognized tax benefits, ending balance	$ 38,572	$ 46,973	$ 26,205