Annual report pursuant to Section 13 and 15(d)

Our Portfolio - Schedule of Analysis of Portfolio Performance Ratings (Details)

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Our Portfolio - Schedule of Analysis of Portfolio Performance Ratings (Details)
 12 Months Ended
Dec. 31, 2021
USD ($)
transaction
receivable
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]      
2021 $ 295,000,000    
2020 200,000,000    
2019 456,000,000    
2018 263,000,000    
2017 41,000,000    
Prior to 2017 205,000,000    
Total receivables held-for-investment 1,460,000,000 $ 1,250,000,000  
Less: Allowance for loss on receivables (36,000,000) (36,000,000)  
Net receivables held-for-investment 1,424,000,000    
Receivables held-for-sale 22,214,000 0  
Investments 17,697,000 55,377,000  
Real estate 356,000,000    
Equity method investments 1,759,651,000 1,279,651,000  
Total 3,580,000,000    
Average remaining balance $ 12,000,000    
Number of transactions | transaction 174    
Finance receivable outstanding balance (less than) $ 1,000,000    
Finance receivable aggregate remaining amount $ 84,000,000    
Portfolio | Credit concentration      
Financing Receivable, Credit Quality Indicator [Line Items]      
Percent of Portfolio 100.00%    
3      
Financing Receivable, Credit Quality Indicator [Line Items]      
Less: Allowance for loss on receivables $ (8,000,000)    
Government receivables      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total receivables held-for-investment 125,000,000 248,000,000  
Less: Allowance for loss on receivables 0 0 $ 0
Net receivables held-for-investment 125,409,000 248,455,000  
Government receivables | 1      
Financing Receivable, Credit Quality Indicator [Line Items]      
2021 0    
2020 0    
2019 0    
2018 0    
2017 31,000,000    
Prior to 2017 94,000,000    
Total receivables held-for-investment 125,000,000    
Less: Allowance for loss on receivables 0    
Net receivables held-for-investment 125,000,000    
Receivables held-for-sale 0    
Investments 11,000,000    
Real estate 0    
Equity method investments 0    
Total 136,000,000    
Average remaining balance $ 6,000,000    
Government receivables | 1 | Portfolio | Credit concentration      
Financing Receivable, Credit Quality Indicator [Line Items]      
Percent of Portfolio 4.00%    
Commercial receivables      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total receivables held-for-investment $ 1,335,000,000 1,002,000,000  
Less: Allowance for loss on receivables (36,000,000) (36,000,000) $ (26,000,000)
Net receivables held-for-investment 1,298,529,000 $ 965,452,000  
Commercial receivables | 1      
Financing Receivable, Credit Quality Indicator [Line Items]      
2021 295,000,000    
2020 200,000,000    
2019 454,000,000    
2018 263,000,000    
2017 1,000,000    
Prior to 2017 103,000,000    
Total receivables held-for-investment 1,316,000,000    
Less: Allowance for loss on receivables (25,000,000)    
Net receivables held-for-investment 1,291,000,000    
Receivables held-for-sale 22,000,000    
Investments 7,000,000    
Real estate 356,000,000    
Equity method investments 1,726,000,000    
Total 3,402,000,000    
Average remaining balance $ 13,000,000    
Commercial receivables | 1 | Portfolio | Credit concentration      
Financing Receivable, Credit Quality Indicator [Line Items]      
Percent of Portfolio 95.00%    
Commercial receivables | 2      
Financing Receivable, Credit Quality Indicator [Line Items]      
2021 $ 0    
2020 0    
2019 2,000,000    
2018 0    
2017 9,000,000    
Prior to 2017 0    
Total receivables held-for-investment 11,000,000    
Less: Allowance for loss on receivables (3,000,000)    
Net receivables held-for-investment 8,000,000    
Receivables held-for-sale 0    
Investments 0    
Real estate 0    
Equity method investments 34,000,000    
Total 42,000,000    
Average remaining balance $ 11,000,000    
Commercial receivables | 2 | Portfolio | Credit concentration      
Financing Receivable, Credit Quality Indicator [Line Items]      
Percent of Portfolio 1.00%    
Commercial receivables | 3      
Financing Receivable, Credit Quality Indicator [Line Items]      
2021 $ 0    
2020 0    
2019 0    
2018 0    
2017 0    
Prior to 2017 8,000,000    
Total receivables held-for-investment 8,000,000    
Less: Allowance for loss on receivables (8,000,000)    
Net receivables held-for-investment 0    
Receivables held-for-sale 0    
Investments 0    
Real estate 0    
Equity method investments 0    
Total 0    
Average remaining balance $ 4,000,000    
Number of contracts | receivable 2    
Financing receivables on non-accrual status $ 8,000,000    
Commercial receivables | 3 | Wind Project Member      
Financing Receivable, Credit Quality Indicator [Line Items]      
Equity method investments $ 0    
Commercial receivables | 3 | Portfolio | Credit concentration      
Financing Receivable, Credit Quality Indicator [Line Items]      
Percent of Portfolio 0.00%    
Residential Solar Loan      
Financing Receivable, Credit Quality Indicator [Line Items]      
Net receivables held-for-investment $ 776,000,000