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Investments - Schedule of Fair Value Portfolio by Industry Sector (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | $ 4,306,154 | $ 3,659,978
Industry Sector Concentration Risk | Total Industry Sectors |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 4,306,154 | 3,659,978
Industry Sector Concentration Risk | Software |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 1,519,464 | 1,081,100
Industry Sector Concentration Risk | Drug Discovery & Development |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 988,816 | 1,080,390
Industry Sector Concentration Risk | Healthcare Services, Other |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 833,492 | 610,184
Industry Sector Concentration Risk | Consumer & Business Services |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 433,323 | 372,641
Industry Sector Concentration Risk | Defense Technologies |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 140,622 | 0
Industry Sector Concentration Risk | Diversified Financial Services |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 104,221 | 113,491
Industry Sector Concentration Risk | Medical Devices & Equipment |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 76,389 | 74,962
Industry Sector Concentration Risk | Electronics & Computer Hardware |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 51,080 | 162,888
Industry Sector Concentration Risk | Space Technologies |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 34,019 | 45,700
Industry Sector Concentration Risk | Communications & Networking |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 27,535 | 27,700
Industry Sector Concentration Risk | Information Services |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 23,988 | 24,356
Industry Sector Concentration Risk | Biotechnology Tools |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 22,326 | 35,434
Industry Sector Concentration Risk | Sustainable and Renewable Technology |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 21,300 | 27,696
Industry Sector Concentration Risk | Manufacturing Technology |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 20,419 | 1,162
Industry Sector Concentration Risk | Consumer & Business Products |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 8,716 | 1,497
Industry Sector Concentration Risk | Semiconductors |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 339 | 704
Industry Sector Concentration Risk | Media/Content/Info |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | 93 | 63
Industry Sector Concentration Risk | Drug Delivery |  |
Schedule Of Investments [Line Items] |  |
Investments at Fair Value | $ 12 | $ 10
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Total Industry Sectors |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 100.00% | 100.00%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Software |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 35.30% | 29.50%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Drug Discovery & Development |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 23.00% | 29.50%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Healthcare Services, Other |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 19.30% | 16.70%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Consumer & Business Services |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 10.10% | 10.20%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Defense Technologies |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 3.30% | 0.00%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Diversified Financial Services |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 2.40% | 3.10%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Medical Devices & Equipment |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 1.80% | 2.00%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Electronics & Computer Hardware |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 1.20% | 4.50%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Space Technologies |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 0.80% | 1.20%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Communications & Networking |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 0.60% | 0.80%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Information Services |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 0.50% | 0.70%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Biotechnology Tools |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 0.50% | 1.00%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Sustainable and Renewable Technology |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 0.50% | 0.80%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Manufacturing Technology |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 0.50% | 0.00%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Consumer & Business Products |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 0.20% | 0.00%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Semiconductors |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 0.00% | 0.00%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Media/Content/Info |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 0.00% | 0.00%
Industry Sector Concentration Risk | Industry Sector Investments Benchmark | Drug Delivery |  |
Schedule Of Investments [Line Items] |  |
Percentage of Total Portfolio | 0.00% | 0.00%

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