Property, Plant and Equipment (Tables)
 3 Months Ended
Mar. 31, 2014
Property Plant And Equipment [Abstract]  
Schedule of Property, Plant and Equipment

The following presents the categories within property, plant and equipment (in thousands):

 

     March 31,     December 31,  
     2014     2013  

Operating wind farms

    $ 1,639,707      $ 1,652,119   

Furniture, fixtures and equipment

      3,798        3,785   

Land

      16        16   
  

 

 

    

 

 

  

Subtotal

      1,643,521        1,655,920   

Less: accumulated depreciation

      (198,967 )      (179,778 ) 
  

 

 

    

 

 

  

Property, plant and equipment, net

    $ 1,444,554      $ 1,476,142