Annual report pursuant to Section 13 and 15(d)

Our Portfolio - Schedule of Financing Receivable, Allowance for Credit Loss (Details)

v3.20.4
Our Portfolio - Schedule of Financing Receivable, Allowance for Credit Loss (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2020
Jan. 01, 2020
Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]        
Gross Carrying Value   $ 1,250,000 $ 1,167,000  
Loan Funding Commitments   282,000 57,000  
Allowance $ 36,000 36,000 26,000 $ 8,000
Net receivables   1,214,000    
Equity method investments   1,279,651   498,631
Financing receivables, investments, real estate and equity method investments   2,908,000    
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
Balance at beginning of period 8,000      
Balance at end of period 36,000      
Internal Credit Rating 3        
Financing Receivable, Credit Quality Indicator [Line Items]        
Allowance 8,000 8,000    
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
Balance at end of period 8,000      
Government receivables        
Financing Receivable, Credit Quality Indicator [Line Items]        
Gross Carrying Value   248,000 263,000  
Loan Funding Commitments   0 0  
Allowance 0 0 0 0
Receivables, net of allowance   248,455   263,175
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
Balance at beginning of period 0      
Provision for loss on receivables 0      
Balance at end of period 0      
Government receivables | Internal Credit Rating 1        
Financing Receivable, Credit Quality Indicator [Line Items]        
Gross Carrying Value   248,000    
Allowance 0 0    
Net receivables   248,000    
Equity method investments   0    
Financing receivables, investments, real estate and equity method investments   283,000    
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
Balance at end of period 0      
Commercial receivables        
Financing Receivable, Credit Quality Indicator [Line Items]        
Gross Carrying Value   1,002,000 904,000  
Loan Funding Commitments   282,000 57,000  
Allowance 36,000 36,000 $ 26,000 26,000
Net receivables   965,452   $ 896,432
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
Balance at beginning of period 26,000      
Provision for loss on receivables 10,000      
Balance at end of period 36,000      
Commercial receivables | Internal Credit Rating 2        
Financing Receivable, Credit Quality Indicator [Line Items]        
Gross Carrying Value   10,000    
Allowance 4,000 4,000    
Net receivables   6,000    
Equity method investments   25,000    
Financing receivables, investments, real estate and equity method investments   31,000    
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
Balance at end of period 4,000      
Commercial receivables | Internal Credit Rating 3        
Financing Receivable, Credit Quality Indicator [Line Items]        
Gross Carrying Value   8,000    
Allowance 8,000 8,000    
Net receivables   0    
Equity method investments   0    
Financing receivables, investments, real estate and equity method investments   0    
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
Balance at end of period 8,000      
Commercial receivables | Internal Credit Rating 1        
Financing Receivable, Credit Quality Indicator [Line Items]        
Gross Carrying Value   984,000    
Allowance 24,000 24,000    
Net receivables   960,000    
Equity method investments   1,255,000    
Financing receivables, investments, real estate and equity method investments   2,594,000    
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
Balance at end of period $ 24,000      
U.S. Federal Government        
Financing Receivable, Credit Quality Indicator [Line Items]        
Receivables, net of allowance   145,000    
State or local governments        
Financing Receivable, Credit Quality Indicator [Line Items]        
Receivables, net of allowance   104,000    
Residential Solar Loan        
Financing Receivable, Credit Quality Indicator [Line Items]        
Net receivables   505,000    
Residential Solar Loan | Affiliated Entity        
Financing Receivable, Credit Quality Indicator [Line Items]        
Net receivables   408,000    
Equity method investments   23,000    
Leasing Arrangement | Commercial Non-Investment Grade        
Financing Receivable, Credit Quality Indicator [Line Items]        
Financing receivables, investments, real estate and equity method investments   $ 111,000