Segment Reporting - Summary of Information Concerning Reportable Segments (Details) - USD ($)
$ in Thousands
 3 Months Ended 5 Months Ended 7 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2015
Aug. 05, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Segment Reporting Information, Profit (Loss) [Abstract]                          
Operating revenues, net $ 51,256 $ 29,373 $ 25,681 $ 17,806 $ 13,899 $ 7,446 $ 9,278 $ 8,826     $ 124,116 $ 39,449 $ 22,196
Depreciation, accretion and amortization expense                     28,769 7,167 4,785
Other operating costs and expenses:                     318,981 16,455 7,503
Interest expense, net 23,061 39,580 28,186 16,821 10,649 5,699 4,336 3,610     107,648 24,294 11,812
Other non-operating expense (income):                     34,869 (5,128) 2,024
Income tax expense (benefit):                     4,858 1,700 (1,651)
Net loss $ (254,196) $ (82,909) $ (22,679) $ (11,225) $ (1,699) $ (1,539) $ (597) $ (1,204) $ (331,656) $ (39,353) (371,009) (5,039) (2,277)
Operating Segments                          
Segment Reporting Information, Profit (Loss) [Abstract]                          
Operating revenues, net                     124,116 39,449 22,196
Operating Segments | Wind Energy                          
Segment Reporting Information, Profit (Loss) [Abstract]                          
Operating revenues, net                     31,197 0 0
Depreciation, accretion and amortization expense                     11,973 0 0
Other operating costs and expenses:                     10,779 0 0
Interest expense, net                     943 0 0
Other non-operating expense (income):                     429 0 0
Income tax expense (benefit):                     0 0 0
Net loss                     7,073 0 0
Operating Segments | Solar Energy                          
Segment Reporting Information, Profit (Loss) [Abstract]                          
Operating revenues, net                     92,919 39,449 22,196
Depreciation, accretion and amortization expense                     16,796 7,167 4,785
Other operating costs and expenses:                     13,132 4,256 1,666
Interest expense, net                     39,098 24,294 11,812
Other non-operating expense (income):                     24,177 (5,128) 2,024
Income tax expense (benefit):                     0 0 0
Net loss                     (284) 8,860 1,909
Corporate                          
Segment Reporting Information, Profit (Loss) [Abstract]                          
Other operating costs and expenses:                     295,070 12,199 5,837
Interest expense, net                     67,607 0 0
Other non-operating expense (income):                     10,263 0 0
Income tax expense (benefit):                     4,858 1,700 (1,651)
Net loss                     $ (377,798) $ (13,899) $ (4,186)