v3.26.1
Fair Value of Financial Instruments - Summary of Significant Unobservable Inputs Used to Measure The Fair Value Of The Level 3 Portfolio Investments (Details) - Significant Unobservable Inputs (Level 3)
$ in Thousands
Jun. 30, 2026
USD ($)
yr
Dec. 31, 2025
USD ($)
yr
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments $ 2,700,813 $ 2,386,232
Debt investments | Discounted Cash Flows | Hypothetical Market Yield    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments $ 1,972,326 $ 1,682,044
Debt investments | Discounted Cash Flows | Minimum | Hypothetical Market Yield    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.057 0.038
Debt investments | Discounted Cash Flows | Maximum | Hypothetical Market Yield    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.272 0.365
Debt investments | Discounted Cash Flows | Weighted Average | Hypothetical Market Yield    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.135 0.142
Debt investments | Cost approximates fair value    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments $ 403,942 $ 442,889
Debt investments | Scenario Analysis | Probability Weighting of Alternative Outcomes    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments $ 18,728 $ 39,888
Debt investments | Scenario Analysis | Minimum | Probability Weighting of Alternative Outcomes    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.15 0.10
Debt investments | Scenario Analysis | Maximum | Probability Weighting of Alternative Outcomes    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.85 0.85
Debt investments | Enterprise Value    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments $ 27,248 $ 12,885
Debt investments | Enterprise Value | Minimum | Performance Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.008  
Debt investments | Enterprise Value | Maximum | Performance Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.029  
Debt investments | Enterprise Value | Weighted Average | Performance Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.012  
Debt investments | Transaction Precedent    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments   22,258
Equity investments | Discounted Cash Flows | Hypothetical Market Yield    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments $ 22,571  
Equity investments | Discounted Cash Flows | Minimum | Hypothetical Market Yield    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.138  
Equity investments | Discounted Cash Flows | Maximum | Hypothetical Market Yield    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.148  
Equity investments | Discounted Cash Flows | Weighted Average | Hypothetical Market Yield    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range | yr 14.1  
Equity investments | Cost approximates fair value    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments $ 31,067 26,300
Equity investments | Market Approach | Revenue Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments   $ 82,042
Equity investments | Market Approach | Performance Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments $ 129,328  
Equity investments | Market Approach | Minimum | Revenue Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range   0.003
Equity investments | Market Approach | Minimum | Performance Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.004  
Equity investments | Market Approach | Minimum | Volatility    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.395 0.402
Equity investments | Market Approach | Minimum | Risk-Free Interest Rate    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 3.9 3.5
Equity investments | Market Approach | Minimum | Estimated Time to Exit (in years)    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range | yr 1 0.5
Equity investments | Market Approach | Maximum | Revenue Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range   0.475
Equity investments | Market Approach | Maximum | Performance Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.131  
Equity investments | Market Approach | Maximum | Volatility    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 1.033 1.056
Equity investments | Market Approach | Maximum | Risk-Free Interest Rate    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 4.2 3.6
Equity investments | Market Approach | Maximum | Estimated Time to Exit (in years)    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range | yr 4.5 3.8
Equity investments | Market Approach | Weighted Average | Revenue Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range   0.041
Equity investments | Market Approach | Weighted Average | Performance Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.035  
Equity investments | Market Approach | Weighted Average | Volatility    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.578 0.534
Equity investments | Market Approach | Weighted Average | Risk-Free Interest Rate    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 4.2 3.5
Equity investments | Market Approach | Weighted Average | Estimated Time to Exit (in years)    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range | yr 3 2.4
Warrants | Market Approach | Revenue Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments   $ 74,533
Warrants | Market Approach | Performance Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments $ 76,253  
Warrants | Market Approach | Minimum | Revenue Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range   0.001
Warrants | Market Approach | Minimum | Performance Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.001  
Warrants | Market Approach | Minimum | Volatility    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.388 0.355
Warrants | Market Approach | Minimum | Risk-Free Interest Rate    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 3.9 3.5
Warrants | Market Approach | Minimum | Estimated Time to Exit (in years)    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range | yr 1.5 1
Warrants | Market Approach | Maximum | Revenue Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range   0.475
Warrants | Market Approach | Maximum | Performance Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.229  
Warrants | Market Approach | Maximum | Volatility    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 1.348 1.409
Warrants | Market Approach | Maximum | Risk-Free Interest Rate    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 4.2 3.9
Warrants | Market Approach | Maximum | Estimated Time to Exit (in years)    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range | yr 4.5 4.5
Warrants | Market Approach | Weighted Average | Revenue Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range   0.104
Warrants | Market Approach | Weighted Average | Performance Multiple    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.038  
Warrants | Market Approach | Weighted Average | Volatility    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.644 0.599
Warrants | Market Approach | Weighted Average | Risk-Free Interest Rate    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 4.1 3.5
Warrants | Market Approach | Weighted Average | Estimated Time to Exit (in years)    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range | yr 2.7 2.4
Warrants | Transaction Precedent | Transaction Price    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments $ 15,081  
Warrants | Black Scholes | Volatility    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Total Level 3 Investments $ 4,269 $ 3,393
Warrants | Black Scholes | Minimum | Volatility    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 61.7 61.2
Warrants | Black Scholes | Minimum | Risk-Free Interest Rate    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.042 0.037
Warrants | Black Scholes | Minimum | Estimated Time to Exit (in years)    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 4.2 0.047
Warrants | Black Scholes | Maximum | Volatility    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 124.7 128
Warrants | Black Scholes | Maximum | Risk-Free Interest Rate    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.044 0.042
Warrants | Black Scholes | Maximum | Estimated Time to Exit (in years)    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 9.3 0.098
Warrants | Black Scholes | Weighted Average | Volatility    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.994 0.904
Warrants | Black Scholes | Weighted Average | Risk-Free Interest Rate    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.043 0.04
Warrants | Black Scholes | Weighted Average | Estimated Time to Exit (in years)    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Range 0.077 0.078