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Business Combinations - Additional Information (Details)
$ in Thousands
3 Months Ended
Jan. 26, 2016
USD ($)
MW
Jan. 22, 2016
USD ($)
Jun. 24, 2015
Sites
MW
Feb. 29, 2016
USD ($)
MW
Mar. 29, 2015
USD ($)
Business Acquisition [Line Items]          
Aggregate solar nameplate megawatts       435  
Cash paid for acquisitions | $       $ 4,887 $ 0
Kern Acquisition          
Business Acquisition [Line Items]          
Agreement date Jan. 26, 2016        
Aggregate solar nameplate megawatts 20        
Aggregate purchase price | $ $ 35,000        
Cash paid for acquisitions | $ $ 4,900        
Purchase price to be paid on the closing of phases | $       $ 30,100  
Future capital contribution from tax equity investor | $   $ 28,400      
Maryland Solar          
Business Acquisition [Line Items]          
Business acquisition, effective date of acquisition       Jun. 24, 2015  
Maryland Solar | First Energy Solutions          
Business Acquisition [Line Items]          
Aggregate solar nameplate megawatts     20    
Percentage of voting interests acquired     100.00%    
Number of year, power purchase agreement serving     20 years    
Solar Gen Two Project Entity | San Diego Gas & Electric          
Business Acquisition [Line Items]          
Aggregate solar nameplate megawatts     150    
Percentage of voting interests acquired     49.00%    
Number of year, power purchase agreement serving     25 years    
Electricity production capacity per site     50    
Number of site electricity generated separately | Sites     3    
North Star | PG&E          
Business Acquisition [Line Items]          
Aggregate solar nameplate megawatts     60    
Percentage of voting interests acquired     49.00%    
Number of year, power purchase agreement serving     20 years    
Lost Hills Blackwell | PG&E          
Business Acquisition [Line Items]          
Aggregate solar nameplate megawatts     32    
Percentage of voting interests acquired     49.00%    
Number of year, power purchase agreement serving     25 years