Quarterly report pursuant to Section 13 or 15(d)

Pass-through Financing Obligations (Details)

v3.21.1
Pass-through Financing Obligations (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Property Subject to or Available for Operating Lease [Line Items]    
Customer agreement, initial term 22 years  
Minimum    
Property Subject to or Available for Operating Lease [Line Items]    
Customer agreement, initial term 20 years  
Maximum    
Property Subject to or Available for Operating Lease [Line Items]    
Customer agreement, initial term 25 years  
Solar energy systems, net    
Property Subject to or Available for Operating Lease [Line Items]    
Solar energy systems, initial term 7 years  
Solar energy systems $ 714.4 $ 715.5
Accumulated depreciation $ 126.7 $ 120.2
Solar energy systems, net | Minimum    
Property Subject to or Available for Operating Lease [Line Items]    
Solar energy systems, initial term 20 years  
Solar energy systems, net | Maximum    
Property Subject to or Available for Operating Lease [Line Items]    
Solar energy systems, initial term 22 years