Net Income Per Common Share (Tables)

 v2.3.0.11

Net Income Per Common Share (Tables)	6 Months Ended
	Jul. 30, 2011
Net Income Per Common Share [Abstract]
Net income per basic and diluted share	Three months ended     Six months ended       July 30,     July 31,     July 30,     July 31,       2011     2010     2011     2010   Net income   $ 23,905     $ 13,062     $ 47,201     $ 26,723                                     Denominator for basic net income per share — weighted-average common shares     61,126       58,727       60,840       58,517   Dilutive effect of stock options and non-vested stock     2,115       1,945       2,173       1,988                             Denominator for diluted net income per share     63,241       60,672       63,013       60,505                                     Net income per common share:                                 Basic   $ 0.39     $ 0.22     $ 0.78     $ 0.46   Diluted   $ 0.38     $ 0.22     $ 0.75     $ 0.44