Earnings (Loss) per Share (Tables)
 9 Months Ended
Sep. 30, 2016
Earnings Per Share [Abstract]  
Schedule of Computation of Basic and Diluted Earnings (Loss) Per Common Share

The following table illustrates the computation of basic and diluted earnings (loss) per common share (in thousands):

 

     Three Months Ended  
     September 30,
2016		      September 30,
2015		  

Net income (loss)

    $ 29,866       $ (57,066 ) 

Weighted average common stock outstanding

      

Basic

      34,849,805         34,664,246   

Diluted

      35,302,706         34,664,246   

Earnings (loss) per share

      

Basic

    $ 0.86       $ (1.65 ) 

Diluted

    $ 0.85       $ (1.65 ) 

 

     Nine Months Ended  
     September 30,
2016		      September 30,
2015		  

Net income (loss)

    $ 20,175       $ (107,721 ) 

Weighted average common stock outstanding

      

Basic

      34,755,276         34,273,265   

Diluted

      35,077,315         34,273,265   

Earnings (loss) per share

      

Basic

    $ 0.58       $ (3.14 ) 

Diluted

    $ 0.58       $ (3.14 ) 
Schedule of Antidilutive Securities Excluded from the Computation of Diluted Earnings (Loss) Per Common Share

The following outstanding instruments were excluded from the computation of diluted earnings (loss) per share, as they have an anti-dilutive effect on the calculation (in thousands):

 

     Three Months Ended      Nine Months Ended  
     September 30,
2016		      September 30,
2015		      September 30,
2016		      September 30,
2015		  

Options

      2,457,955         3,257,028         3,545,576         3,257,028   

Restricted Stock Units

      —          135,370         —          135,370