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Earnings per share (Tables)
 3 Months Ended
Mar. 31, 2014
Earnings per share  
Computation of Net Loss per Share on Basic and Diluted Basis

The following table reflects the computation of net loss per share on a basic and diluted basis for the three months ended March 31, 2014 and 2013 (in thousands, except share information):

 
   For the Three Months
Ended March 31,		  
 
   2014   2013  

Income (loss) (numerator):

              

Loss from continuing operations

   $ (6,935 ) $ (6,879 )

Income from discontinued operations

     —     22  

Noncontrolling interest

     3,620     895  

Dividends on preferred shares

     3,121     —  
           
​ ​ ​ ​ ​ ​ ​ ​

Net loss attributable to common shareholders

   $ (13,676 ) $ (7,752 )
           
​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​
           

Weighted-average shares (denominator)

     185,504,294     48,233,982  

Net loss per share- basic and diluted:

    
 		    
 		  

Loss from continuing operations

   $ (0.07 ) $ (0.16 )

Income from discontinued operations

     —     —  
           
​ ​ ​ ​ ​ ​ ​ ​

Net loss per share- basic and diluted

   $ (0.07 ) $ (0.16 )
           
​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​