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Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
Calculation of Earnings (Loss) Per Share
The table below sets forth the basic loss per share calculations:

 
 
Period Ended December 31,
 
 
 
2013
  
2012
  
2011
 
Net loss
 
$
(27,608
)
 
$
(26,924
)
 
$
(17,263
)
Basic weighted average number of shares outstanding
  
51,188
   
50,934
   
50,028
 
Diluted weighted average number of shares outstanding
  
51,188
   
50,934
   
50,028
 
Basic and diluted loss per share
 
$
(0.54
)
 
$
(0.53
)
 
$
(0.35
)