Earnings Per Share - (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011
Earnings Per Share Disclosure [Abstract]
Net income	$ 17,333	$ 18,103	$ 49,055	$ 48,624
Earnings Alloacted to Non-Vesting Equity Awards	(267)	(292)	(764)	(811)
Net Income (Loss) Available to Common Stockholders	$ 17,066	$ 17,811	$ 48,291	$ 47,813
Basic Weighted-Average common shares outstanding	28,813,766	29,010,209	28,759,821	28,978,512
Dilutive Effect of Stock Options	4,285	5,932	4,231	5,635
Dilluted Weighted Average Common Shares Outstanding	28,818,051	29,016,141	28,764,052	28,984,147
Basic earnings per share	$ 0.59	$ 0.61	$ 1.68	$ 1.65
Diluted earnings per share	$ 0.59	$ 0.61	$ 1.68	$ 1.65