Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments - Additional Information (Details)

v3.22.2.2
Fair Value of Financial Instruments - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Sep. 24, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Unrealized Gain (Loss) on Investments $ (2,089) $ (35,651) $ (87,147) $ 46,231  
2033 Notes          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Current Price Per Par Value $ 23.48   $ 23.48    
2031 Asset-Backed Notes          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Current Price Per Par Value $ 0.970   $ 0.970    
Debt | Unobservable Inputs Level 3 | Depreciation [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Unrealized Gain (Loss) on Investments     $ (12,200)    
Debt | Unobservable Inputs Level 3 | Appreciation          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Unrealized Gain (Loss) on Investments       400  
Warrant Investment [Member] | Unobservable Inputs Level 3 | Depreciation [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Unrealized Gain (Loss) on Investments     (13,400)    
Warrant Investment [Member] | Unobservable Inputs Level 3 | Appreciation          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Unrealized Gain (Loss) on Investments       8,000  
Common Stock Investment [Member] | Unobservable Inputs Level 3 | Appreciation          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Unrealized Gain (Loss) on Investments     9,500 15,600  
Preferred Stock Investment Member | Unobservable Inputs Level 3 | Depreciation [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Unrealized Gain (Loss) on Investments     $ (23,200) $ (6,500)  
Underwriting | 2033 Notes          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Current Price Per Par Value         $ 25.00