Earnings per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 03, 2013	Jul. 28, 2012	Aug. 03, 2013	Jul. 28, 2012
Numerator
Total net earnings attributable to common shareholders	$ 42,943	$ 59,393	$ 76,034	$ 86,277
Net earnings allocated to participating securities (restricted stock and deferred stock units)	(139)	(624)	(474)	(1,101)
Net earnings attributable to common shareholders	$ 42,804	$ 58,769	$ 75,560	$ 85,176
Denominator
Basic weighted-average common shares outstanding	49,843,000	50,711,000	50,225,000	50,822,000
Effect of dilutive securities:
Stock options and equity-based compensation (in shares)	290,000	221,000	235,000	262,000
Diluted weighted-average common shares outstanding	50,133,000	50,932,000	50,460,000	51,084,000
Net earnings per common share attributable to common shareholders:
Basic (in dollars per share)	$ 0.86	$ 1.16	$ 1.50	$ 1.68
Diluted (in dollars per share)	$ 0.85	$ 1.15	$ 1.50	$ 1.67
Anti-dilutive shares of common stock excluded from the calculation of diluted earnings per common share (in shares)	200,000	400,000	300,000	300,000