Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	4 Months Ended
	Jan. 17, 2016	Jan. 18, 2015
Equity, Class of Treasury Stock [Line Items]
Treasury Stock, Shares, Acquired	1.3
Repurchases of common stock	$ 100,000	$ 104,669
Common Stock, Dividends, Per Share, Declared	$ 0.30	$ 0.20
Dividends, Common Stock	$ 10,600
Expiration: November 2017 [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock, remaining authorized amount	100,000
Treasury Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Treasury Stock, Value, Acquired, Cost Method	$ 100,000