Description of Business - Summary of Assets Comprise the Portfolio (Parenthetical) (Details)	3 Months Ended
	Feb. 28, 2017 Lease MW	Feb. 24, 2017 MW	Nov. 30, 2016 MW	Sep. 09, 2016 MW	Jan. 26, 2016 MW
Description Of Business And Basis Of Presentation [Line Items]
Aggregate solar nameplate megawatts	945
Lost Hills Blackwell Project Entity | California | City of Roseville
Description Of Business And Basis Of Presentation [Line Items]
Remaining Term of Offtake Agreement (in years)	1 year 9 months 18 days
Kern | California | OpCo
Description Of Business And Basis Of Presentation [Line Items]
Aggregate solar nameplate megawatts		3	5	5	3
Residential Portfolio
Description Of Business And Basis Of Presentation [Line Items]
Number of solar residential installations | Lease	5,900
Residential Portfolio | U.S. – Various
Description Of Business And Basis Of Presentation [Line Items]
Number of solar residential installations | Lease	5,900
Residential Portfolio | U.S. – Various | Approximately 5,900 homeowners
Description Of Business And Basis Of Presentation [Line Items]
Remaining Term of Offtake Agreement (in years)	15 years 6 months
Aggregate solar nameplate megawatts	39