Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Details)

v3.22.4
Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Tax Contingency [Line Items]      
Tax basis of investments, gross, unrealized appreciation $ 72,200 $ 121,000 $ 166,200
Tax basis of investments, gross, unrealized depreciation 112,000 75,700 126,100
Tax basis of investments, unrealized appreciation (depreciation), net 39,800 45,300 40,100
Tax basis of investments, cost for income tax purposes 3,000,000 2,400,000  
Income Taxes Paid, Net 7,376 3,759 2,458
Taxes payable 5,200 7,200 3,000
Excise Tax [Member]      
Income Tax Contingency [Line Items]      
Taxes payable   7,000  
Taxable Subsidiary [Member]      
Income Tax Contingency [Line Items]      
Adjustments To Additional PaidIn Capital Other $ 3,000 $ 63,300 $ 67,700