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Stockholders' Equity (Tables)
 9 Months Ended
Sep. 30, 2016
Equity [Abstract]  
Diluted Earnings per Share
Diluted earnings per share for the three and nine months ended September 30, 2016 and 2015 includes the effects of potential common shares issuable upon the vesting of restricted stock, when dilutive. 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2016
 
2015
 
2016
 
2015
Net income attributable to common stockholders — basic
and diluted
$
1,147

 
$
2,554

 
6,431

 
$
9,351

Weighted average number of common shares outstanding
29,449

 
29,149

 
29,449

 
29,149

Dilutive effect of restricted stock grants after application
of the treasury stock method
652

 
235

 
334

 
160

Dilutive shares outstanding
30,101

 
29,384

 
29,783

 
29,309

Basic and diluted earnings per share attributable to
common stockholders
$
0.04

 
$
0.09

 
$
0.22

 
$
0.32