Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Oct. 29, 2016	Jul. 30, 2016
Payables and Accruals [Abstract]
Accrued payroll and related taxes	$ 25,414	$ 23,908
Accrued employee benefit and incentive plan costs	16,203	40,943
Accrued construction costs	41,521	41,123
Other current liabilities	14,672	16,328
Total other accrued liabilities	$ 97,810	$ 122,302