Income Taxes (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011
Federal:
Current	$ 87,484	$ 102,152	$ 84,119
Deferred	(1,073)	(14,557)	278
Federal Income Tax Expense (Benefit), Continuing Operations	86,411	87,595	84,397
State:
Current	3,871	3,332	7,186
Deferred	66	(461)	(128)
State and Local Income Tax Expense (Benefit), Continuing Operations	3,937	2,871	7,058
Foreign:
Current	9,090	8,460	5,818
Deferred	(2,591)	(2,989)	229
Foreign Income Tax Expense (Benefit), Continuing Operations	6,499	5,471	6,047
Income tax expense (benefit), total	$ 96,847	$ 95,937	$ 97,502

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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