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Earnings Per Share (Tables)
 6 Months Ended
Jul. 28, 2013
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings Per Common Share
The computation of basic and diluted earnings per common share is as follows:
 
Three Months Ended
 
Six Months Ended
(in thousands, except per share amounts)
July 28,
2013
 
July 29,
2012
 
July 28,
2013
 
July 29,
2012
Net income
$
19,112

 
$
10,022

 
$
33,889

 
$
12,231

 
 
 
 
 
 
 
 
Weighted average common shares outstanding - basic
67,614

 
65,587

 
67,285

 
65,435

Dilutive effect of employee equity incentive plans
1,476

 
1,578

 
1,527

 
1,772

Weighted average common shares outstanding - diluted
69,090

 
67,165

 
68,812

 
67,207

 
 
 
 
 
 
 
 
Basic earnings per common share
$
0.28

 
$
0.15

 
$
0.50

 
$
0.19

Diluted earnings per common share
$
0.28

 
$
0.15

 
$
0.49

 
$
0.18

 
 
 
 
 
 
 
 
Anti-dilutive shares not included in the above calculations
352

 
1,472

 
392

 
1,190