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Earnings per Share
 12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
Earnings per Share
Earnings per Share

The following table sets forth the computation of basic and diluted earnings per share:
 
 
Years ended December 31:
 
 
2011
 
2012
 
2013
 
 
(In thousands, except per share data)
Numerator:
 
 
 
 
 
 
Net income (loss)
 
$
13,743

 
$
(18,791
)
 
$
38,647

Denominator:
 
 

 
 

 
 

Denominator for basic earnings per share – weighted-average common shares outstanding
 
90,151

 
91,914

 
92,451

Effect of dilutive securities:
Stock options, restricted shares and warrants
 
2,093

 
—

 
1,087

Denominator for diluted earnings per share – adjusted weighted-average shares and assumed exercise of options, restricted shares and warrants
 
92,244

 
91,914

 
93,538

 
 
 
 
 
 
 
Net income (loss) per common share  – basic
 
$
0.15

 
$
(0.20
)
 
$
0.42

 
 
 
 
 
 
 
Net income (loss) per common share – diluted
 
$
0.15

 
$
(0.20
)
 
$
0.41


 
Basic earnings per share, excluding any dilutive effects of stock options, warrants and unvested restricted stock, is computed by dividing net income (loss) available to common stockholders by the weighted average number of common shares outstanding for the period. Diluted income (loss) per share is computed similar to basic; however diluted income (loss) per share reflects the assumed conversion of all potentially dilutive securities. For the year ended December 31, 2012, 1,349 potential shares relating to stock options and unvested restricted shares were excluded from the calculation of diluted income (loss) per share since their inclusion would have been anti-dilutive due to the loss incurred in the period. None of the dilutive shares were excluded for the years ended December 31, 2011 and 2013.