Income Taxes (Details) - USD ($) $ in Thousands	Jan. 23, 2016	Jul. 25, 2015
Income Tax Disclosure [Abstract]
Income taxes receivable	$ 29,300	$ 2,100
Income taxes payable	311	8,916
Unrecognized tax benefits	2,300	2,300
Payment of interest and penalties accrued	$ 1,000	$ 900