Quarterly report pursuant to Section 13 or 15(d)

Indebtedness - Schedule of Debt (Details)

v3.21.2
Indebtedness - Schedule of Debt (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Recourse Debt    
Debt Instrument [Line Items]    
Total debt, gross $ 609,284 $ 230,660
Unamortized debt discount (9,951) 0
Total debt, net 599,333 230,660
Unused borrowing capacity 338  
Recourse Debt | Bank Line Of Credit    
Debt Instrument [Line Items]    
Total debt, gross 209,284 $ 230,660
Unused borrowing capacity $ 338  
Weighted average interest rate 3.36% 3.53%
Recourse Debt | 0% Convertible Senior Notes    
Debt Instrument [Line Items]    
Total debt, gross $ 400,000 $ 0
Unused borrowing capacity $ 0  
Weighted average interest rate 0.00%  
Interest rate during period 0.00%  
Non Recourse Debt    
Debt Instrument [Line Items]    
Total debt, gross $ 5,504,634 4,512,331
Unamortized debt premium/(discount), net 32,839 53,154
Total debt, net 5,537,473 4,565,485
Unused borrowing capacity 35,852  
Non Recourse Debt | Senior revolving and delayed draw loans    
Debt Instrument [Line Items]    
Total debt, gross 987,200 $ 587,600
Unused borrowing capacity $ 28,852  
Weighted average interest rate 2.72% 2.85%
Non Recourse Debt | Senior Non Revolving Loans    
Debt Instrument [Line Items]    
Total debt, gross $ 900,827 $ 1,087,386
Unused borrowing capacity $ 0  
Weighted average interest rate 3.84% 3.68%
Non Recourse Debt | Senior Non Revolving Loans | Minimum    
Debt Instrument [Line Items]    
Interest rate during period 4.50%  
Non Recourse Debt | Senior Non Revolving Loans | Maximum    
Debt Instrument [Line Items]    
Interest rate during period 6.50%  
Non Recourse Debt | Subordinated Revolving and Delayed Draw Loans    
Debt Instrument [Line Items]    
Total debt, gross $ 202,971 $ 282,722
Unused borrowing capacity $ 7,000  
Weighted average interest rate 9.12% 8.43%
Non Recourse Debt | Subordinated Revolving and Delayed Draw Loans | Minimum    
Debt Instrument [Line Items]    
Interest rate during period 8.50%  
Non Recourse Debt | Subordinated Revolving and Delayed Draw Loans | Maximum    
Debt Instrument [Line Items]    
Interest rate during period 10.00%  
Non Recourse Debt | Subordinated Loans    
Debt Instrument [Line Items]    
Total debt, gross $ 931,889 $ 668,642
Total debt, net 122,200  
Unused borrowing capacity $ 0  
Weighted average interest rate 8.57% 8.76%
Non Recourse Debt | Subordinated Loans | Minimum    
Debt Instrument [Line Items]    
Interest rate during period 7.00%  
Non Recourse Debt | Subordinated Loans | Maximum    
Debt Instrument [Line Items]    
Interest rate during period 10.00%  
Non Recourse Debt | Securitized loans    
Debt Instrument [Line Items]    
Total debt, gross $ 2,481,747 $ 1,885,981
Unused borrowing capacity $ 0  
Weighted average interest rate 3.60% 4.18%
Non Recourse Debt | Securitized loans | Minimum    
Debt Instrument [Line Items]    
Interest rate during period 2.27%  
Non Recourse Debt | Securitized loans | Maximum    
Debt Instrument [Line Items]    
Interest rate during period 5.31%  
Recourse and Nonrecourse Debt    
Debt Instrument [Line Items]    
Total debt, net $ 6,136,806 $ 4,796,145
Unused borrowing capacity $ 36,190  
LIBOR | Recourse Debt | Bank Line Of Credit    
Debt Instrument [Line Items]    
Interest rate during period 3.25%  
LIBOR | Non Recourse Debt | Senior revolving and delayed draw loans | Minimum    
Debt Instrument [Line Items]    
Interest rate during period 2.50%  
LIBOR | Non Recourse Debt | Senior revolving and delayed draw loans | Maximum    
Debt Instrument [Line Items]    
Interest rate during period 3.25%  
LIBOR | Non Recourse Debt | Senior Non Revolving Loans | Minimum    
Debt Instrument [Line Items]    
Interest rate during period 2.125%  
LIBOR | Non Recourse Debt | Senior Non Revolving Loans | Maximum    
Debt Instrument [Line Items]    
Interest rate during period 2.75%  
LIBOR | Non Recourse Debt | Subordinated Revolving and Delayed Draw Loans    
Debt Instrument [Line Items]    
Interest rate during period 9.00%  
LIBOR | Non Recourse Debt | Subordinated Loans | Minimum    
Debt Instrument [Line Items]    
Interest rate during period 6.75%