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Earnings Per Share
 6 Months Ended
Jun. 30, 2016
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share (unaudited, in thousands, except per share data):
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2016
 
2015
 
2016
 
2015
Numerator:
 
 
 
 
 
 
 
 
Net income
 
$
11,673

 
$
13,339

 
$
24,847

 
$
30,127

 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
 
Weighted-average common shares for calculating basic earnings per share
 
28,243

 
28,196

 
28,242

 
28,299

Effect of dilutive securities:
 
 
 
 
 
 
 
 
Stock options and nonvested awards
 
—

 
215

 
—

 
216

Weighted-average common shares for calculating diluted earnings per share
 
28,243

 
28,411

 
28,242

 
28,515

 
 
 
 
 
 
 
 
 
Net income per share:
 
 
 
 
 
 
 
 
Basic
 
$
0.41

 
$
0.47

 
$
0.88

 
$
1.06

Diluted
 
$
0.41

 
$
0.47

 
$
0.88

 
$
1.06