Income Taxes (Details) (USD $)	Oct. 25, 2014	Jul. 26, 2014
Income Tax Disclosure [Abstract]
Income taxes receivable	$ 100,000	$ 2,200,000
Income taxes payable	13,369,000	5,223,000
Unrecognized tax benefit	2,400,000	2,400,000
Payment of interest and penalties accrued	$ 800,000	$ 800,000