Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.22.2.2
Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Total asset investment, Percentage 96.60%   96.60%    
Cash, Held in Foreign Currency, Acquisition Cost     $ 726   $ 93
Cash, Held in Foreign Currency $ 679   679   95
Escrow receivable 1,300   1,300   600
Unamortized fees 53,600   53,600   42,900
Fee Income 2,821 $ 6,881 9,110 $ 20,111  
Exit fees receivables 36,500   36,500   35,000
Interest Income 81,408 63,312 212,391 188,400  
Income from advisory services $ 0 $ 0 $ 0 $ 0  
Stock issued during period, shares, dividend reinvestment plan 62,726 55,413 184,197 189,356  
Other comprehensive income $ 0 $ 0 $ 0 $ 0  
Investment Company, Accounting and Reporting under Topic 946 [true false]     true    
PIK [Member]          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Interest Income 4,900 2,900 $ 14,900 8,100  
One Time Fee [Member]          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Fee Income 500 $ 1,700 1,300 $ 6,200  
Deferred Fees [Member]          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Unamortized fees 11,500   11,500   6,400
Exit fees receivables 4,500   4,500   5,400
Included in Cost [Member]          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Unamortized fees 42,100   42,100   36,500
Exit fees receivables $ 32,000   $ 32,000   $ 29,600