Capital Stock (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Oct. 25, 2014	Oct. 26, 2013	Jul. 26, 2014	Oct. 25, 2014 Common Stock	Aug. 27, 2013 Common Stock
Class of Stock [Line Items]
Number of Shares Repurchased			360,900
Average Price Per Share (in dollars per share)			$ 27.71
Total Consideration (Dollars in thousands)			$ 10.0
Remaining authorized repurchase amount				30.0
Common stock authorized repurchase amount					40.0
Shares Paid for Tax Withholding for Share Based Compensation	10,931	19,468
Value of Shares Paid for Tax Withholding for Share Based Compensation	$ 0.3	$ 0.6