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Earnings Per Share
 3 Months Ended
Mar. 31, 2015
Earnings Per Share [Abstract]  
Earnings Per Share
8. EARNINGS PER SHARE

The following table sets forth the numerator and denominator used in the computation of basic and diluted earnings per share (“EPS”):

 

     Three Months Ended
March 31,		  
     2015      2014  

Numerator:

      

Net loss attributable to common stockholders

    $ (9,271 )     $ (13,423 ) 
  

 

 

     

 

 

  

Denominator:

Number of shares outstanding, end of period:

Class A common stock

   39,588      39,053   

Class B common stock

   988      988   

Unvested restricted stock

   (159 )    (130 ) 

Effect of weighted average shares outstanding during period

   —        (2 ) 
  

 

 

     

 

 

  

Weighted average number of common shares used in basic and diluted EPS

   40,417      39,909   
  

 

 

     

 

 

  

As of March 31, 2015, there are 2,705 anti-dilutive potentially issuable shares not included in the diluted EPS calculation due to the net loss attributable to common stockholders.