Net Income Per Share (Details) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Oct. 27, 2012		Oct. 29, 2011		Oct. 27, 2012		Oct. 29, 2011
Weighted Average Shares Outstanding And Anti Dilutive Shares [Abstract]
Shares of Common Stock issued	103,300		103,300		103,300		103,300
Treasury shares	(21,631)		(16,338)		(20,361)		(16,130)
Weighted-Average - Basic Shares	81,669		86,962		82,939		87,170
Dilutive effect of stock options, stock appreciation rights and restricted stock units	853		2,745		1,110		2,997
Weighted-Average - Diluted Shares	82,522		89,707		84,049		90,167
Anti-Dilutive Shares	6,114	[1]	2,403	[1]	5,398	[1]	2,137	[1]

[1] Reflects the number of shares of Common Stock subject to outstanding stock options, stock appreciation rights and restricted stock units, but excluded from the computation of net income per diluted share because the impact would be anti-dilutive.