Other Income, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 30, 2016	Jul. 25, 2015	Jul. 26, 2014
Other Income and Expenses [Abstract]
Gain on sale of fixed assets	$ 9,806	$ 7,110	$ 10,706
Miscellaneous income, net of other expense	627	1,181	522
Total other income, net	$ 10,433	$ 8,291	$ 11,228