Acquisitions - Terminated Acquisitions Narrative (Details) $ in Millions			1 Months Ended
	Dec. 13, 2016 USD ($)	Mar. 29, 2016 USD ($)	Jun. 30, 2015 USD ($) power_plant MW shares	May 19, 2015 MW
GME
Business Acquisition [Line Items]
Acquisition agreement, number of projects to be acquired | power_plant			4
Capacity of acquired power plants | MW			326.0
Payments to acquire businesses			$ 337.9
Interest rate on purchase price			15.00%
SunEdison | LAP
Business Acquisition [Line Items]
Acquisition agreement, capacity of projects to be acquired (in MW) | MW				72.5
SunEdison | GME
Business Acquisition [Line Items]
Company payments for solar plants			$ 46.9
Renova | ESPRA
Business Acquisition [Line Items]
Agreement termination fee		$ 10.0
Subsequent event | GME
Business Acquisition [Line Items]
Reimbursement of business acquisition, certain expenses	$ 0.4
Common Stock | GME
Business Acquisition [Line Items]
Common stock issued in acquisition (in shares) | shares			701,754