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Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2015
Earnings Per Share [Abstract]  
Computation of Basic Earnings and Diluted Earnings Per Share Data

The following table details the reconciliation of basic earnings per share to diluted earnings per share:

 

 

 

Three months ended June 30,

 

 

Six months ended June 30,

 

 

 

2015

 

 

2014

 

 

2015

 

 

2014

 

Numerator for basic and diluted earnings per share:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income

 

$

18,836

 

 

$

14,740

 

 

$

36,109

 

 

$

26,623

 

Denominator:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-average basic common shares outstanding

 

 

33,751

 

 

 

32,918

 

 

 

33,756

 

 

 

32,876

 

Assumed conversion of dilutive securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stock options

 

 

2,346

 

 

 

2,243

 

 

 

2,340

 

 

 

2,413

 

Denominator for diluted earnings per share

   - Adjusted weighted-average shares

 

 

36,097

 

 

 

35,161

 

 

 

36,096

 

 

 

35,289

 

Earnings per common share:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Basic

 

$

0.56

 

 

$

0.45

 

 

$

1.07

 

 

$

0.81

 

Diluted

 

$

0.52

 

 

$

0.42

 

 

$

1.00

 

 

$

0.75