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Earnings per Share
 6 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Earnings per Share
Earnings per Share
The following table sets forth the computation of basic and diluted earnings per common share:
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2013
 
2012
 
2013
 
2012
 
(in thousands, except per-share amounts)
Numerator
 
 
 
 
 
 
 
Net income
$
42,068

 
$
34,591

 
$
72,622

 
$
58,010

Denominator
 
 
 
 
 
 
 
Weighted-average shares outstanding, basic
72,593

 
72,379

 
72,540

 
72,336

Effect of dilutive stock awards
399

 
205

 
358

 
206

Adjusted weighted-average shares outstanding, diluted
72,992

 
72,584

 
72,898

 
72,542

Net Income per Share
 
 
 
 
 
 
 
Basic earnings per common share
$
0.58

 
$
0.48

 
$
1.00

 
$
0.80

Diluted earnings per common share
$
0.58

 
$
0.48

 
$
1.00

 
$
0.80


As of June 30, 2013 and 2012, there were 1,545 and 26,000 anti-dilutive awards excluded from the computation of diluted earnings per common share, respectively.