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Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2016
Earnings Per Share [Abstract]  
Schedule of Numerator and Denominator Used in Computation of Earnings Per Share

The following table sets forth the numerator and denominator used in the computation of earnings per share:

 

     Three Months Ended
March 31,
 
     2016      2015  

Numerator:

     

Net loss attributable to common stockholders

   $ (7,608    $ (9,271
  

 

 

    

 

 

 

Denominator:

     

Number of shares outstanding, end of period:

     

Class A common stock

     40,243         39,588   

Class B common stock

     988         988   

Unvested restricted stock

     (115      (159

Effect of weighted average shares outstanding

     (120      —     
  

 

 

    

 

 

 

Weighted average common shares outstanding

     40,996         40,417   
  

 

 

    

 

 

 

Antidilutive potentially issuable shares

     2,445         2,705