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Other Accrued Liabilities (Details) - USD ($)
$ in Thousands
Jul. 29, 2017
Jul. 30, 2016
Payables and Accruals [Abstract]    
Accrued payroll and related taxes $ 24,554 $ 23,908
Accrued employee benefit and incentive plan costs 42,135 40,943
Accrued construction costs 29,942 41,123
Other current liabilities 16,972 16,328
Total other accrued liabilities $ 113,603 $ 122,302