Property, Plant and Equipment (Tables)
 9 Months Ended
Sep. 30, 2016
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment
The table below presents the categories within property, plant and equipment as follows (in thousands):
 
September 30,
 
December 31,
 
2016
 
2015
Operating wind farms
$
3,713,775

 
$
3,700,140

Furniture, fixtures and equipment
8,912

 
3,500

Land
141

 
141

Subtotal
3,722,828

 
3,703,781

Less: accumulated depreciation
(540,774
)
 
(409,161
)
Property, plant and equipment, net
$
3,182,054

 
$
3,294,620