Other Accrued Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Oct. 25, 2014	Jul. 26, 2014
Payables and Accruals [Abstract]
Accrued payroll and related taxes	$ 19,421	$ 18,429
Accrued employee benefit and incentive plan costs	9,360	17,677
Accrued construction costs	23,529	20,689
Accrued interest and related bank fees	5,821	872
Income taxes payable	13,369	5,223
Other current liabilities	15,405	13,244
Total other accrued liabilities	$ 86,905	$ 76,134