Earnings per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Apr. 28, 2012
Apr. 30, 2011
Numerator    
Total net earnings attributable to common shareholders $ 26,884 $ 27,425
Net earnings allocated to participating securities (restricted stock and deferred stock units) (426) (294)
Net earnings attributable to common shareholders $ 26,458 $ 27,131
Denominator    
Basic weighted average common shares outstanding 50,932,000 51,918,000
Effect of dilutive securities:    
Stock options and equity-based compensation (in shares) 305,000 279,000
Diluted weighted average common shares outstanding 51,237,000 52,197,000
Net earnings per common share attributable to common shareholders:    
Basic (in dollars per share) $ 0.52 $ 0.52
Diluted (in dollars per share) $ 0.52 $ 0.52
Stock Options
   
Antidilutive Securities Excluded from Computation of Earnings Per Share    
Anti-dilutive stock options (in shares) 200,000 500,000