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Fair Value of Financial Instruments - Schedule of Quantitative Information of Fair Value Measurements (Details) - Level 3 significant unobservable inputs $ in Thousands | Jun. 30, 2023 USD ($) | Dec. 31, 2022 USD ($)
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Equity and Warrant Investments |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | $ 96,216 |  | $ 85,966 |
Valuation Market Approach | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | 35,966 |  | 30,086 |
Valuation Market Approach | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | $ 15,936 |  | $ 12,479 |
Valuation Market Approach | Minimum | Discount for Lack of Marketability | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [1] | 0.0547 |  |  |
Valuation Market Approach | Maximum | Discount for Lack of Marketability | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [1] | 0.3211 |  |  |
Market Comparable Companies | Minimum | EBITDA Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 13.3 | [2] | 12.4 | [3]
Market Comparable Companies | Minimum | EBITDA Multiple | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 13.3 | [2] | 12.4 | [3]
Market Comparable Companies | Minimum | Revenue Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.6 | [2] | 0.7 | [3]
Market Comparable Companies | Minimum | Revenue Multiple | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.7 | [2] | 0.6 | [3]
Market Comparable Companies | Minimum | Tangible Book Value Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 1.7 | [2] | 1.6 | [3]
Market Comparable Companies | Minimum | Discount for Lack of Marketability | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [4] |  |  | 0.0811 |
Market Comparable Companies | Minimum | Discount for Lack of Marketability | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.0547 | [1] | 0.0811 | [4]
Market Comparable Companies | Maximum | EBITDA Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 13.3 | [2] | 12.4 | [3]
Market Comparable Companies | Maximum | EBITDA Multiple | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 13.3 | [2] | 12.4 | [3]
Market Comparable Companies | Maximum | Revenue Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 18 | [2] | 16.1 | [5]
Market Comparable Companies | Maximum | Revenue Multiple | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 9.9 | [2] | 8.8 | [3]
Market Comparable Companies | Maximum | Tangible Book Value Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 1.7 | [2] | 1.6 | [3]
Market Comparable Companies | Maximum | Discount for Lack of Marketability | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [4] |  |  | 0.289 |
Market Comparable Companies | Maximum | Discount for Lack of Marketability | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.325 | [1] | 0.327 | [4]
Market Comparable Companies | Weighted Average | EBITDA Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 13.3 | [2],[6] | 12.4 | [3],[7]
Market Comparable Companies | Weighted Average | EBITDA Multiple | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 13.3 | [2],[6] | 12.4 | [3],[7]
Market Comparable Companies | Weighted Average | Revenue Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 7.9 | [2],[6] | 7.4 | [3],[7]
Market Comparable Companies | Weighted Average | Revenue Multiple | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 3.9 | [2],[6] | 3.4 | [3],[7]
Market Comparable Companies | Weighted Average | Tangible Book Value Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 1.7 | [2],[6] | 1.6 | [3],[7]
Market Comparable Companies | Weighted Average | Discount for Lack of Marketability | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.2335 | [1],[6] | 0.1979 | [4],[7]
Market Comparable Companies | Weighted Average | Discount for Lack of Marketability | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.2291 | [1],[6] | 0.1897 | [4],[7]
Liquidation | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | $ 0 |  | $ 0 |
Liquidation | Minimum | Revenue Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 1.7 | [2] | 2.1 | [3]
Liquidation | Minimum | Revenue Multiple | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [3] |  |  | 6.2 |
Liquidation | Minimum | Discount for Lack of Marketability | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.83 | [1] | 0.85 | [4]
Liquidation | Minimum | Discount for Lack of Marketability | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [4] |  |  | 90 |
Liquidation | Maximum | Revenue Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 1.7 | [2] | 2.1 | [3]
Liquidation | Maximum | Revenue Multiple | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [3] |  |  | 6.2 |
Liquidation | Maximum | Discount for Lack of Marketability | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.83 | [1] | 0.85 | [4]
Liquidation | Maximum | Discount for Lack of Marketability | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [4] |  |  | 90 |
Liquidation | Weighted Average | Revenue Multiple | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 1.7 | [2],[6] | 2.1 | [3],[7]
Liquidation | Weighted Average | Revenue Multiple | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [3],[7] |  |  | 6.2 |
Liquidation | Weighted Average | Discount for Lack of Marketability | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.83 | [1],[6] | 0.85 | [4],[7]
Liquidation | Weighted Average | Discount for Lack of Marketability | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [4],[7] |  |  | 90 |
Market Adjusted OPM Backsolve | Minimum | Market Equity Adjustment | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | (0.8347) | [5] | (0.9782) | [8]
Market Adjusted OPM Backsolve | Maximum | Market Equity Adjustment | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.1333 | [5] | 0.1634 | [8]
Market Adjusted OPM Backsolve | Weighted Average | Market Equity Adjustment | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | (0.1331) | [5],[6] | (0.1669) | [7],[8]
Market Adjusted OPM Backsolve | Weighted Average | Market Equity Adjustment | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.0656 | [5],[6] | (0.0886) | [7],[8]
Market Adjusted OPM Backsolve | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | $ 8,882 |  | $ 13,795 |
Market Adjusted OPM Backsolve | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | $ 5,244 |  | $ 6,934 |
Market Adjusted OPM Backsolve | Minimum | Market Equity Adjustment | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | (0.6349) | [5] | (0.9782) | [8]
Market Adjusted OPM Backsolve | Maximum | Market Equity Adjustment | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.2393 | [5] | 0.6643 | [8]
Discounted Cash Flow | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | $ 27,161 |  | $ 19,153 |
Discounted Cash Flow | Minimum | Measurement Input, Discount Rate | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.1995 | [9] | 0.1772 | [10]
Discounted Cash Flow | Maximum | Measurement Input, Discount Rate | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.3168 | [9] | 0.3013 | [10]
Discounted Cash Flow | Weighted Average | Measurement Input, Discount Rate | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.2614 | [6],[9] | 0.2446 | [7],[10]
Other | Equity Securities |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments | [11] | $ 3,027 |  | $ 3,513 |
Other | Warrants |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  |  |  | 6 |
Investments [Member] |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | 2,937,942 |  | 2,795,444 |
Investments [Member] | Debt Maturing Within One Year |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | 162,590 |  | 93,597 |
Investments [Member] | Debt Investments - Imminent Payoff |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments | [12] | 142,446 |  | 77,676 |
Investments [Member] | Valuation Cost Approach |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | 255,144 |  | 392,168 |
Investments [Member] | Valuation Market Approach | Pharmaceuticals |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | 1,046,205 |  | 903,427 |
Investments [Member] | Valuation Market Approach | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | 1,047,563 |  | 967,108 |
Investments [Member] | Valuation Market Approach | Sustainable And Renewable Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | 1,856 |  | 3,006 |
Investments [Member] | Valuation Market Approach | Lower Middle Market |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | 252,658 |  | 328,393 |
Investments [Member] | Liquidation | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments | [13] |  |  | 1,671 |
Investments [Member] | Liquidation | Lower Middle Market |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | $ 7,073 | [13] | $ 8,042 |
Investments [Member] | Liquidation | Minimum | Probability weighting of alternative outcomes | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [13] |  |  | 0.05 |
Investments [Member] | Liquidation | Minimum | Probability weighting of alternative outcomes | Lower Middle Market |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [13] | 0.20 |  | 0.20 |
Investments [Member] | Liquidation | Maximum | Probability weighting of alternative outcomes | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [13] |  |  | 0.80 |
Investments [Member] | Liquidation | Maximum | Probability weighting of alternative outcomes | Lower Middle Market |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [13] | 0.80 |  | 0.80 |
Investments [Member] | Liquidation | Weighted Average | Probability weighting of alternative outcomes | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [13],[14] |  |  | 0.4829 |
Investments [Member] | Liquidation | Weighted Average | Probability weighting of alternative outcomes | Lower Middle Market |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [13],[14] | 0.80 |  | 0.80 |
Investments [Member] | Valuation Income Approach | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Investments |  | $ 22,407 |  | $ 20,356 |
Investments [Member] | Valuation Income Approach | Minimum | Probability weighting of alternative outcomes | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.01 |  | 0.01 |
Investments [Member] | Valuation Income Approach | Maximum | Probability weighting of alternative outcomes | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.50 |  | 0.50 |
Investments [Member] | Valuation Income Approach | Weighted Average | Probability weighting of alternative outcomes | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [14] | 0.3522 |  | 0.3579 |
Investments [Member] | Market Comparable Companies | Hypothetical Market Yield | Sustainable And Renewable Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.111 |  |  |
Investments [Member] | Market Comparable Companies | Premium/(Discount) | Sustainable And Renewable Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.0075 |  |  |
Investments [Member] | Market Comparable Companies | Minimum | Hypothetical Market Yield | Pharmaceuticals |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.1172 |  | 0.1174 |
Investments [Member] | Market Comparable Companies | Minimum | Hypothetical Market Yield | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.1287 |  | 0.1205 |
Investments [Member] | Market Comparable Companies | Minimum | Hypothetical Market Yield | Sustainable And Renewable Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  |  |  | 0.1471 |
Investments [Member] | Market Comparable Companies | Minimum | Hypothetical Market Yield | Lower Middle Market |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.1407 |  | 0.1368 |
Investments [Member] | Market Comparable Companies | Minimum | Premium/(Discount) | Pharmaceuticals |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | (0.01) |  | (0.0075) |
Investments [Member] | Market Comparable Companies | Minimum | Premium/(Discount) | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | (0.0075) |  | (0.01) |
Investments [Member] | Market Comparable Companies | Minimum | Premium/(Discount) | Sustainable And Renewable Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  |  |  | 0.0075 |
Investments [Member] | Market Comparable Companies | Minimum | Premium/(Discount) | Lower Middle Market |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | (0.0075) |  | (0.02) |
Investments [Member] | Market Comparable Companies | Maximum | Hypothetical Market Yield | Pharmaceuticals |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.1825 |  | 0.1904 |
Investments [Member] | Market Comparable Companies | Maximum | Hypothetical Market Yield | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.202 |  | 0.1853 |
Investments [Member] | Market Comparable Companies | Maximum | Hypothetical Market Yield | Sustainable And Renewable Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  |  |  | 0.1471 |
Investments [Member] | Market Comparable Companies | Maximum | Hypothetical Market Yield | Lower Middle Market |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.1736 |  | 0.1849 |
Investments [Member] | Market Comparable Companies | Maximum | Premium/(Discount) | Pharmaceuticals |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.035 |  | 0.0175 |
Investments [Member] | Market Comparable Companies | Maximum | Premium/(Discount) | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.03 |  | 0.015 |
Investments [Member] | Market Comparable Companies | Maximum | Premium/(Discount) | Sustainable And Renewable Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  |  |  | 0.0075 |
Investments [Member] | Market Comparable Companies | Maximum | Premium/(Discount) | Lower Middle Market |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input |  | 0.0175 |  | 0.0075 |
Investments [Member] | Market Comparable Companies | Weighted Average | Hypothetical Market Yield | Pharmaceuticals |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [14] | 0.1452 |  | 0.1517 |
Investments [Member] | Market Comparable Companies | Weighted Average | Hypothetical Market Yield | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [14] | 0.1557 |  | 0.1521 |
Investments [Member] | Market Comparable Companies | Weighted Average | Hypothetical Market Yield | Sustainable And Renewable Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [14] | 0.111 |  | 0.1471 |
Investments [Member] | Market Comparable Companies | Weighted Average | Hypothetical Market Yield | Lower Middle Market |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [14] | 0.1396 |  | 0.1482 |
Investments [Member] | Market Comparable Companies | Weighted Average | Premium/(Discount) | Pharmaceuticals |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [14] | 0.001 |  | 0.0001 |
Investments [Member] | Market Comparable Companies | Weighted Average | Premium/(Discount) | Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [14] | 0.0039 |  | 0.002 |
Investments [Member] | Market Comparable Companies | Weighted Average | Premium/(Discount) | Sustainable And Renewable Technology |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [14] | 0.0075 |  | 0.0075 |
Investments [Member] | Market Comparable Companies | Weighted Average | Premium/(Discount) | Lower Middle Market |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |  |
Alternative Investment, Measurement Input | [14] | 0.0023 |  | (0.0043) |
[1] | Represents amounts used when the Company has determined market participants would take into account these discounts when pricing the investments.
[2] | Represents amounts used when the Company has determined that market participants would use such multiples when pricing the investments.
[3] | Represents amounts used when the Company has determined that market participants would use such multiples when pricing the investments.
[4] | Represents amounts used when the Company has determined market participants would take into account these discounts when pricing the investments.
[5] | Represents the range of changes in industry valuations since the portfolio company's last external valuation event.
[6] | Weighted averages are calculated based on the fair market value of each investment.
[7] | Weighted averages are calculated based on the fair market value of each investment.
[8] | Represents the range of changes in industry valuations since the portfolio company's last external valuation event.
[9] | The discount rate used is based on current portfolio yield adjusted for uncertainty of actual performance and timing in capital deployments.
[10] | The discount rate used is based on current portfolio yield adjusted for uncertainty of actual performance and timing in capital deployments.
[11] | The fair market value of these investments is derived based on recent private market and merger and acquisition transaction prices.
[12] | Imminent payoffs represent debt investments that the Company expects to be fully repaid within the next three months, prior to their scheduled maturity date.
[13] | The significant unobservable input used in the fair value measurement of impaired debt securities is the probability weighting of alternative outcomes.
[14] | The weighted averages are calculated based on the fair market value of each investment.

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