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Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2014
Income Tax Disclosure [Abstract]
Current Fiscal Year End Date	--07-31
Income Tax Examination, Penalties and Interest Expense	$ (1,100)	$ 1,400	$ (100)
Unrecognized tax benefits, beginning balance	38,572	46,973	26,205
Additions based on tax positions related to the current year	0	0	21,082
Additions for tax positions of prior years	18,460	17,443	0
Reductions for tax positions of prior years	0	(21,574)	0
Lapse of statute of limitations	0	0	(314)
Settlements	0	(4,270)	0
Unrecognized tax benefits, ending balance	$ 57,032	$ 38,572	$ 46,973

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The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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