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Earnings Per Share Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2014
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table shows the computation of basic and diluted EPS for the three and nine month periods ended September 30, 2014 and September 30, 2013, respectively:

 
 
Three Months Ended September 30,
 
Nine Months Ended
September 30,
 
 
2014
 
2013
 
2014
 
2013
Numerator:
 
 
 
 
 
 
 
 
Net income attributable to common stockholders
 
$
8,640

 
$
4,131

 
$
29,619

 
$
12,991

 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
 
Weighted-average shares outstanding
 
20,745,245

 
16,129,247

 
19,658,199

 
16,091,323

Effect of dilutive securities
 
98,358

 
56,931

 
98,212

 
75,993

Weighted-average diluted shares
 
20,843,603

 
16,186,178

 
19,756,411

 
16,167,316

 
 
 
 
 
 
 
 
 
Basic earnings per share
 
$
0.42

 
$
0.26

 
$
1.51

 
$
0.81

Diluted earnings per share
 
$
0.41

 
$
0.26

 
$
1.50

 
$
0.80