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Earnings per Share (Tables)
 6 Months Ended
Jun. 30, 2016
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share
The following table shows the computation of basic and diluted EPS for the three and six month periods ended June 30, 2016 and June 30, 2015, respectively:

 
 
Three Months Ended June 30,
 
Six Months Ended
June 30,
 
 
2016
 
2015
 
2016
 
2015
Numerator:
 
 
 
 
 
 
 
 
Net income attributable to common stockholders
 
$
9,841

 
$
5,275

 
$
12,792

 
$
5,473

 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
 
Weighted-average shares outstanding
 
21,423,739

 
21,255,496

 
21,385,220

 
21,145,624

Effect of dilutive securities
 
207,338

 
253,015

 
199,067

 
230,916

Weighted-average diluted shares
 
21,631,077

 
21,508,511

 
21,584,287

 
21,376,540

 
 
 
 
 
 
 
 
 
Basic earnings per share
 
$
0.46

 
$
0.25

 
$
0.60

 
$
0.26

Diluted earnings per share
 
$
0.45

 
$
0.25

 
$
0.59

 
$
0.26