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Description of Business - Additional Information (Details) - acquisition
9 Months Ended 12 Months Ended 21 Months Ended
Aug. 31, 2017
Nov. 30, 2016
Aug. 31, 2017
Description Of Business And Basis Of Presentation [Line Items]      
Ownership percentage   35.50%  
OpCo | Henrietta Project      
Description Of Business And Basis Of Presentation [Line Items]      
Economic interest in entities 49.00%   49.00%
OpCo | Stateline      
Description Of Business And Basis Of Presentation [Line Items]      
Economic interest in entities 34.00%   34.00%
OpCo | SunPower      
Description Of Business And Basis Of Presentation [Line Items]      
Contribution of interest in entities 100.00%   100.00%
OpCo | Maryland Solar      
Description Of Business And Basis Of Presentation [Line Items]      
Contribution of interest in entities 100.00%   100.00%
OpCo | Solar Gen 2      
Description Of Business And Basis Of Presentation [Line Items]      
Economic interest in entities 49.00%   49.00%
OpCo | Lost Hills Blackwell      
Description Of Business And Basis Of Presentation [Line Items]      
Economic interest in entities 49.00%   49.00%
OpCo | North Star      
Description Of Business And Basis Of Presentation [Line Items]      
Economic interest in entities 49.00%   49.00%
First Solar      
Description Of Business And Basis Of Presentation [Line Items]      
Number of businesses acquired     2
Sponsors      
Description Of Business And Basis Of Presentation [Line Items]      
Number of businesses acquired     6
SunPower      
Description Of Business And Basis Of Presentation [Line Items]      
Number of businesses acquired     4
Op Co | OpCo      
Description Of Business And Basis Of Presentation [Line Items]      
Ownership percentage 35.50%    
Noncontrolling Interest | Sponsors      
Description Of Business And Basis Of Presentation [Line Items]      
Ownership percentage 64.50% 64.50%