Annual report pursuant to Section 13 and 15(d)

Indebtedness - Schedule of Debt (Details)

v3.20.4
Indebtedness - Schedule of Debt (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Total debt, gross $ 4,742,991  
Plus: Debt premium 108,779  
Less: Debt discount (55,625) $ (48,370)
Total debt, net 4,796,145 2,254,940
Unused Borrowing Capacity 156,392  
Recourse debt    
Debt Instrument [Line Items]    
Total debt, gross 230,660 239,485
Unused Borrowing Capacity 0  
Recourse debt | Bank Line of Credit    
Debt Instrument [Line Items]    
Total debt, gross 230,660 $ 239,485
Unused Borrowing Capacity $ 0  
Recourse debt | Bank Line of Credit | LIBOR    
Debt Instrument [Line Items]    
Interest rate during period 3.25%  
Recourse debt | Bank Line of Credit | Minimum    
Debt Instrument [Line Items]    
Weighted average interest rate 3.53% 5.36%
Non Recourse Debt    
Debt Instrument [Line Items]    
Total debt, gross $ 4,512,331 $ 2,063,825
Unused Borrowing Capacity 156,392  
Non Recourse Debt | Senior revolving and delayed draw loans    
Debt Instrument [Line Items]    
Total debt, gross 587,600 $ 157,200
Unused Borrowing Capacity $ 99,429  
Weighted average interest rate 2.85% 4.40%
Non Recourse Debt | Senior revolving and delayed draw loans | Minimum | LIBOR    
Debt Instrument [Line Items]    
Interest rate during period 2.50%  
Non Recourse Debt | Senior revolving and delayed draw loans | Maximum | LIBOR    
Debt Instrument [Line Items]    
Interest rate during period 3.10%  
Non Recourse Debt | Senior non-revolving loans    
Debt Instrument [Line Items]    
Total debt, gross $ 1,087,386 $ 476,909
Unused Borrowing Capacity $ 0  
Weighted average interest rate 3.68% 4.16%
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 | Minimum | LIBOR    
Debt Instrument [Line Items]    
Interest rate during period 2.125%  
Non Recourse Debt | Senior non-revolving loans | Maximum    
Debt Instrument [Line Items]    
Interest rate during period 6.50%  
Non Recourse Debt | Senior non-revolving loans | Maximum | LIBOR    
Debt Instrument [Line Items]    
Interest rate during period 3.00%  
Non Recourse Debt | Subordinated delayed draw loans    
Debt Instrument [Line Items]    
Total debt, gross $ 282,722 $ 0
Unused Borrowing Capacity $ 56,963  
Weighted average interest rate 8.43%  
Non Recourse Debt | Subordinated delayed draw loans | Minimum    
Debt Instrument [Line Items]    
Interest rate during period 8.00%  
Non Recourse Debt | Subordinated 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 $ 668,642 $ 526,825
Unused Borrowing Capacity $ 0  
Non Recourse Debt | Subordinated loans | Minimum    
Debt Instrument [Line Items]    
Weighted average interest rate 8.76% 9.04%
Interest rate during period 9.25%  
Non Recourse Debt | Subordinated loans | Minimum | LIBOR    
Debt Instrument [Line Items]    
Interest rate during period 5.00%  
Non Recourse Debt | Subordinated loans | Maximum    
Debt Instrument [Line Items]    
Interest rate during period 10.00%  
Non Recourse Debt | Subordinated loans | Maximum | LIBOR    
Debt Instrument [Line Items]    
Interest rate during period 9.00%  
Non Recourse Debt | Securitized loans    
Debt Instrument [Line Items]    
Total debt, gross $ 1,885,981 $ 902,891
Total debt, net 123,400  
Unused Borrowing Capacity $ 0  
Weighted average interest rate 4.18% 4.36%
Non Recourse Debt | Securitized loans | LIBOR    
Debt Instrument [Line Items]    
Interest rate during period 2.50%  
Non Recourse Debt | Securitized loans | Minimum    
Debt Instrument [Line Items]    
Interest rate during period 2.33%  
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, gross $ 4,742,991 $ 2,303,310
Unused Borrowing Capacity $ 156,392