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Earnings Per Share
 6 Months Ended
Jul. 31, 2016
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings (Loss) per Share
The computation of basic and diluted earnings (loss) per common share is as follows:
 
Three Months Ended
 
Six Months Ended
(in thousands, except per share amounts)
July 31, 2016
 
July 26, 2015
 
July 31, 2016
 
July 26, 2015
Net income (loss)
$
8,978

 
$
(313
)
 
$
15,866

 
$
(455
)
 
 
 
 
 
 
 
 
Weighted average common shares outstanding - basic
65,299

 
65,920

 
65,222

 
66,319

Dilutive effect of options and restricted stock units
606

 
—

 
501

 
—

Weighted average common shares outstanding - diluted
65,905

 
65,920

 
65,723

 
66,319

 
 
 
 
 
 
 
 
Basic earnings (loss) per common share
$
0.14

 
$
(0.00
)
 
$
0.24

 
$
(0.01
)
Diluted earnings (loss) per common share
$
0.14

 
$
(0.00
)
 
$
0.24

 
$
(0.01
)
 
 
 
 
 
 
 
 
Anti-dilutive shares not included in the above calculations
1,466

 
2,894

 
1,774

 
2,418


Basic earnings (loss) per common share is computed by dividing net income (loss) available to common stockholders by the weighted-average number of shares of common stock outstanding during the reporting period. Diluted earnings (loss) per common share incorporate the incremental shares issuable, calculated using the treasury stock method, upon the assumed exercise of stock options and the vesting of restricted stock.