Earnings per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	May 04, 2013	Apr. 28, 2012
Numerator
Total net earnings attributable to common shareholders	$ 33,091	$ 26,884
Net earnings allocated to participating securities	(312)	(426)
Net earnings attributable to common shareholders	$ 32,779	$ 26,458
Denominator
Basic weighted-average common shares outstanding	50,607,000	50,932,000
Effect of dilutive securities:
Stock options and equity-based compensation (in shares)	181,000	305,000
Diluted weighted-average common shares outstanding	50,788,000	51,237,000
Net earnings per common share attributable to common shareholders:
Basic (in dollars per share)	$ 0.65	$ 0.52
Diluted (in dollars per share)	$ 0.65	$ 0.52
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Anti-dilutive stock options (in shares)	300,000	200,000