Debt - Outstanding (Details) (USD $) In Thousands, unless otherwise specified	Oct. 26, 2013	Jul. 27, 2013
Debt Instrument [Line Items]
Debt and capital lease obligations	$ 484,329	$ 451,982
Debt premium	3,500	3,600
Less: current portion	8,594	7,813
Long-term debt	475,735	444,169
Revolving Credit Facility | Credit Agreement, December 3, 2012, Maturing December 2017
Debt Instrument [Line Items]
Debt and capital lease obligations	83,000	49,000
Senior Loans | Credit Agreement, December 3, 2012, Maturing December 2017
Debt Instrument [Line Items]
Debt and capital lease obligations	120,313	121,875
Senior Subordinated Notes | 7.125% Senior Subordinated Notes Due 2021
Debt Instrument [Line Items]
Debt and capital lease obligations	277,500	277,500
Debt premium	$ 3,516	$ 3,607
Debt, interest rate (in percent)	7.125%	7.125%