Quarterly report pursuant to Section 13 or 15(d)

Energy Assets - Energy Assets (Details)

v3.19.1
Energy Assets - Energy Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Energy assets, net $ 476,582 $ 459,952
Energy Assets    
Property, Plant and Equipment [Line Items]    
Energy assets 644,978 619,708
Less - accumulated depreciation and amortization (168,396) (159,756)
Energy assets, net $ 476,582 $ 459,952