Stock Repurchases and Dividends (Details) - USD ($)	1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 31, 2015	Oct. 03, 2015	Dec. 29, 2012	Oct. 03, 2015	Sep. 28, 2013	Aug. 25, 2015	Jan. 21, 2015	Jul. 25, 2014
Equity, Class of Treasury Stock [Line Items]
Common Stock, Dividends, Per Share, Cash Paid			$ 1.00		$ 1.00
Authorized repurchase of common stock						$ 25,000,000	$ 25,000,000	$ 25,000,000
Number of shares of outstanding common stock repurchased and retired	430,675	437,534		434,114
Stock repurchase, price paid per share	$ 58.05	$ 57.14		$ 57.59
Total cost of stock repurchased, net	$ 25,000,000	$ 25,000,000	$ 24,000,000	$ 25,000,000