Quarterly report [Sections 13 or 15(d)]

Fair Value of Financial Instruments - Schedule of Equity Investments (Details)

v3.26.1
Fair Value of Financial Instruments - Schedule of Equity Investments (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total net change in unrealized appreciation (depreciation) $ (45,005) $ (25,565)
Significant Unobservable Inputs (Level 3) | Debt investments    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total net change in unrealized appreciation (depreciation) (33,400) (23,400)
Significant Unobservable Inputs (Level 3) | Preferred stock    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total net change in unrealized appreciation (depreciation) (3,100) (4,000)
Significant Unobservable Inputs (Level 3) | Common stock    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total net change in unrealized appreciation (depreciation) (6,000) (2,300)
Significant Unobservable Inputs (Level 3) | Warrant investments    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total net change in unrealized appreciation (depreciation) $ 1,900 $ (1,600)