Quarterly report pursuant to Section 13 or 15(d)

Our Portfolio - Summary of the Carrying Value and Allowance by Type of Receivable or "Portfolio Segment" (Details)

v3.22.2
Our Portfolio - Summary of the Carrying Value and Allowance by Type of Receivable or "Portfolio Segment" (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]          
Gross Carrying Value $ 1,594,000   $ 1,594,000   $ 1,460,000
Loan Funding Commitments 117,000   117,000   184,000
Allowance 37,000   37,000   36,000
Loans 1,557,000   1,557,000    
Equity method investments 1,935,467   1,935,467   1,759,651
Equity method investments, receivables, real estate and investments 3,937,000   3,937,000    
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance     36,000    
Ending balance 37,000   37,000    
3          
Financing Receivable, Credit Quality Indicator [Line Items]          
Allowance 11,000   11,000    
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Ending balance 11,000   11,000    
Equity Method Investee          
Financing Receivable, Credit Quality Indicator [Line Items]          
Equity method investments 128,000   128,000    
Commercial receivables          
Financing Receivable, Credit Quality Indicator [Line Items]          
Gross Carrying Value 1,483,000   1,483,000   1,335,000
Loan Funding Commitments 117,000   117,000   184,000
Allowance 37,000 $ 37,000 37,000 $ 37,000 36,000
Loans 1,445,576   1,445,576   1,298,529
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 37,000 36,000 36,000 36,000  
Provision for loss on receivables 8,000 1,000 9,000 1,000  
Write-off of allowance (8,000) 0 (8,000) 0  
Ending balance 37,000 37,000 37,000 37,000  
Commercial receivables | 2          
Financing Receivable, Credit Quality Indicator [Line Items]          
Gross Carrying Value 0   0    
Allowance 0   0    
Loans 0   0    
Equity method investments 28,000   28,000    
Equity method investments, receivables, real estate and investments 28,000   28,000    
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Ending balance 0   0    
Commercial receivables | 3          
Financing Receivable, Credit Quality Indicator [Line Items]          
Gross Carrying Value 11,000   11,000    
Allowance 8,000   8,000    
Loans 3,000   3,000    
Equity method investments 0   0    
Equity method investments, receivables, real estate and investments 3,000   3,000    
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Provision for loss on receivables 8,000   8,000    
Ending balance 8,000   8,000    
Commercial receivables | 1          
Financing Receivable, Credit Quality Indicator [Line Items]          
Gross Carrying Value 1,472,000   1,472,000    
Allowance 29,000   29,000    
Loans 1,443,000   1,443,000    
Equity method investments 1,907,000   1,907,000    
Equity method investments, receivables, real estate and investments 3,742,000   3,742,000    
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Ending balance 29,000   29,000    
Commercial receivables | Equity Method Investee          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans 612,000   612,000    
Government receivables          
Financing Receivable, Credit Quality Indicator [Line Items]          
Gross Carrying Value 111,000   111,000   125,000
Loan Funding Commitments 0   0   0
Allowance 0 0 0 0 0
Loans 110,754   110,754   $ 125,409
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 0 0 0 0  
Provision for loss on receivables 0 0 0 0  
Write-off of allowance 0 0 0 0  
Ending balance 0 $ 0 0 $ 0  
Government receivables | 1          
Financing Receivable, Credit Quality Indicator [Line Items]          
Gross Carrying Value 111,000   111,000    
Allowance 0   0    
Loans 111,000   111,000    
Equity method investments 0   0    
Equity method investments, receivables, real estate and investments 164,000   164,000    
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Ending balance 0   0    
Residential solar loan          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans 1,000,000   1,000,000    
Leasing arrangement          
Financing Receivable, Credit Quality Indicator [Line Items]          
Equity method investments, receivables, real estate and investments 47,000   47,000    
U.S. federal government          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans 16,000   16,000    
State or local governments          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans $ 95,000   $ 95,000