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Investments (Tables) | 12 Months Ended
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Dec. 31, 2024
Investment Company [Abstract] |
Summary of Composition of Portfolio Investments by Industry | The following table summarizes the composition of the Company’s portfolio investments by industry at cost and fair value and as a percentage of the total portfolio as of December 31, 2024 and December 31, 2023 (dollars in thousands):
|  | December 31, 2024 |  |  | December 31, 2023 |
|  | Cost |  |  | Fair Value |  |  | Cost |  |  | Fair Value |
Industry |  | Amount |  |  | % |  |  | Amount |  |  | % |  |  | Amount |  |  | % |  |  | Amount |  |  | % |
Finance and Insurance |  | $ | 319,278 |  |  |  | 18.1 | % |  | $ | 322,735 |  |  |  | 18.7 | % |  | $ | 139,399 |  |  |  | 10.6 | % |  | $ | 133,344 |  |  |  | 10.5 | %
Medical Devices |  |  | 170,923 |  |  |  | 9.7 | % |  |  | 172,395 |  |  |  | 10.0 | % |  |  | 68,717 |  |  |  | 5.2 | % |  |  | 70,320 |  |  |  | 5.5 | %
Green Technology |  |  | 146,851 |  |  |  | 8.3 | % |  |  | 158,852 |  |  |  | 9.2 | % |  |  | 138,510 |  |  |  | 10.5 | % |  |  | 143,279 |  |  |  | 11.2 | %
SaaS |  |  | 144,896 |  |  |  | 8.2 | % |  |  | 146,778 |  |  |  | 8.5 | % |  |  | 34,257 |  |  |  | 2.6 | % |  |  | 34,440 |  |  |  | 2.7 | %
Other Healthcare Services |  |  | 142,430 |  |  |  | 8.1 | % |  |  | 143,186 |  |  |  | 8.3 | % |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Space Technology |  |  | 141,163 |  |  |  | 8.0 | % |  |  | 142,034 |  |  |  | 8.2 | % |  |  | 185,384 |  |  |  | 14.1 | % |  |  | 186,335 |  |  |  | 14.6 | %
Real Estate Technology |  |  | 101,825 |  |  |  | 5.8 | % |  |  | 93,587 |  |  |  | 5.4 | % |  |  | 94,878 |  |  |  | 7.2 | % |  |  | 91,344 |  |  |  | 7.2 | %
Artificial Intelligence & Automation |  |  | 83,505 |  |  |  | 4.7 | % |  |  | 84,448 |  |  |  | 4.9 | % |  |  | 34,732 |  |  |  | 2.6 | % |  |  | 34,435 |  |  |  | 2.7 | %
Healthcare Technology |  |  | 78,381 |  |  |  | 4.5 | % |  |  | 71,853 |  |  |  | 4.2 | % |  |  | 89,038 |  |  |  | 6.8 | % |  |  | 84,917 |  |  |  | 6.6 | %
Biotechnology |  |  | 56,547 |  |  |  | 3.2 | % |  |  | 57,836 |  |  |  | 3.4 | % |  |  | 56,173 |  |  |  | 4.3 | % |  |  | 55,810 |  |  |  | 4.4 | %
Consumer Products & Services |  |  | 56,210 |  |  |  | 3.2 | % |  |  | 54,607 |  |  |  | 3.2 | % |  |  | 85,683 |  |  |  | 6.5 | % |  |  | 83,722 |  |  |  | 6.6 | %
Transportation Technology |  |  | 62,735 |  |  |  | 3.6 | % |  |  | 41,547 |  |  |  | 2.4 | % |  |  | 45,024 |  |  |  | 3.4 | % |  |  | 39,532 |  |  |  | 3.1 | %
Marketing, Media, and Entertainment |  |  | 38,749 |  |  |  | 2.2 | % |  |  | 38,479 |  |  |  | 2.2 | % |  |  | 49,145 |  |  |  | 3.7 | % |  |  | 47,526 |  |  |  | 3.7 | %
Connectivity |  |  | 36,099 |  |  |  | 2.1 | % |  |  | 35,249 |  |  |  | 2.0 | % |  |  | 36,191 |  |  |  | 2.7 | % |  |  | 34,219 |  |  |  | 2.7 | %
Multi-Sector Holdings(1) |  |  | 27,623 |  |  |  | 1.6 | % |  |  | 33,137 |  |  |  | 1.9 | % |  |  | 11,006 |  |  |  | 0.8 | % |  |  | 11,335 |  |  |  | 0.9 | %
Education Technology |  |  | 33,275 |  |  |  | 1.9 | % |  |  | 29,740 |  |  |  | 1.7 | % |  |  | 18,975 |  |  |  | 1.4 | % |  |  | 15,285 |  |  |  | 1.2 | %
Human Resource Technology |  |  | 33,421 |  |  |  | 1.9 | % |  |  | 28,891 |  |  |  | 1.7 | % |  |  | 31,142 |  |  |  | 2.4 | % |  |  | 30,595 |  |  |  | 2.4 | %
Supply Chain Technology |  |  | 29,765 |  |  |  | 1.7 | % |  |  | 28,535 |  |  |  | 1.7 | % |  |  | 30,414 |  |  |  | 2.3 | % |  |  | 24,556 |  |  |  | 1.9 | %
Food and Agriculture Technologies |  |  | 31,824 |  |  |  | 1.8 | % |  |  | 24,469 |  |  |  | 1.4 | % |  |  | 90,967 |  |  |  | 6.9 | % |  |  | 88,707 |  |  |  | 7.0 | %
Industrials |  |  | 11,772 |  |  |  | 0.7 | % |  |  | 9,677 |  |  |  | 0.6 | % |  |  | 21,995 |  |  |  | 1.7 | % |  |  | 23,113 |  |  |  | 1.8 | %
Construction Technology |  |  | 9,443 |  |  |  | 0.5 | % |  |  | 4,042 |  |  |  | 0.2 | % |  |  | 24,141 |  |  |  | 1.8 | % |  |  | 6,813 |  |  |  | 0.5 | %
Digital Assets Technology and Services |  |  | 3,511 |  |  |  | 0.2 | % |  |  | 3,493 |  |  |  | 0.2 | % |  |  | 33,545 |  |  |  | 2.5 | % |  |  | 35,553 |  |  |  | 2.8 | %
Total |  | $ | 1,760,226 |  |  |  | 100.0 | % |  | $ | 1,725,570 |  |  |  | 100.0 | % |  | $ | 1,319,316 |  |  |  | 100.0 | % |  | $ | 1,275,180 |  |  |  | 100.0 | %
(1) Multi-Sector Holdings consist of the Company's investments in Senior Credit Corp 2022 LLC, Trinity Capital Adviser LLC and EPT 16 LLC. These entities invest or manage investments in secured loans and equipment financings to growth-oriented companies that have been originated by the Company. The portfolio companies held by the Multi-Sector Holdings represent a diverse set of industry classifications, which are similar to those in which the Company invests directly. See “Note 12 – Related Party Transactions” in the notes to the consolidated financial statements for further discussion.
Schedule of Composition of Portfolio Investments by Geographic Region | The following table summarizes the composition of the Company’s portfolio investments by geographic region of the United States and other countries at cost and fair value and as a percentage of the total portfolio as of December 31, 2024 and December 31, 2023 (dollars in thousands):
|  | December 31, 2024 |  |  | December 31, 2023 |
|  | Cost |  |  | Fair Value |  |  | Cost |  |  | Fair Value |
Geographic Region |  | Amount |  |  | % |  |  | Amount |  |  | % |  |  | Amount |  |  | % |  |  | Amount |  |  | % |
United States: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
West |  | $ | 543,501 |  |  |  | 30.7 | % |  | $ | 543,102 |  |  |  | 31.5 | % |  | $ | 468,917 |  |  |  | 35.5 | % |  | $ | 464,909 |  |  |  | 36.5 | %
Northeast |  |  | 494,131 |  |  |  | 28.1 | % |  |  | 475,944 |  |  |  | 27.6 | % |  |  | 392,739 |  |  |  | 29.8 | % |  |  | 383,008 |  |  |  | 29.9 | %
Mountain |  |  | 191,244 |  |  |  | 10.9 | % |  |  | 180,644 |  |  |  | 10.5 | % |  |  | 118,126 |  |  |  | 9.0 | % |  |  | 110,681 |  |  |  | 8.7 | %
Southeast |  |  | 184,636 |  |  |  | 10.5 | % |  |  | 180,002 |  |  |  | 10.4 | % |  |  | 43,878 |  |  |  | 3.3 | % |  |  | 42,129 |  |  |  | 3.3 | %
South |  |  | 162,180 |  |  |  | 9.2 | % |  |  | 164,654 |  |  |  | 9.5 | % |  |  | 169,014 |  |  |  | 12.8 | % |  |  | 172,746 |  |  |  | 13.5 | %
Midwest |  |  | 104,074 |  |  |  | 5.9 | % |  |  | 96,193 |  |  |  | 5.6 | % |  |  | 64,535 |  |  |  | 4.9 | % |  |  | 56,945 |  |  |  | 4.5 | %
Multi-Sector Holdings (1) |  |  | 27,623 |  |  |  | 1.6 | % |  |  | 33,137 |  |  |  | 1.9 | % |  |  | 11,006 |  |  |  | 0.8 | % |  |  | 11,335 |  |  |  | 0.9 | %
International: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Western Europe |  |  | 41,366 |  |  |  | 2.4 | % |  |  | 41,455 |  |  |  | 2.4 | % |  |  | 22,235 |  |  |  | 1.7 | % |  |  | 22,400 |  |  |  | 1.8 | %
Canada |  |  | 11,471 |  |  |  | 0.7 | % |  |  | 10,439 |  |  |  | 0.6 | % |  |  | 28,866 |  |  |  | 2.2 | % |  |  | 11,027 |  |  |  | 0.9 | %
Total |  | $ | 1,760,226 |  |  |  | 100.0 | % |  | $ | 1,725,570 |  |  |  | 100.0 | % |  | $ | 1,319,316 |  |  |  | 100.0 | % |  | $ | 1,275,180 |  |  |  | 100.0 | %
(1) Multi-Sector Holdings consist of the Company's investments in Senior Credit Corp 2022 LLC, Trinity Capital Adviser LLC and EPT 16 LLC. These entities invest or manage investments in secured loans and equipment financings to growth-oriented companies that have been originated by the Company. The portfolio companies held by the Multi-Sector Holdings represent a diverse set of geographical classifications, which are similar to those in which the Company invests directly. See “Note 12 – Related Party Transactions” in the notes to the consolidated financial statements for further discussion.
Schedule of Portfolio Investments by Investment Type | The following table summarizes the composition of the Company’s portfolio investments by investment type at cost and fair value and as a percentage of the total portfolio as of December 31, 2024 and December 31, 2023 (dollars in thousands):
|  | December 31, 2024 |  |  | December 31, 2023 |
|  | Cost |  |  | Fair Value |  |  | Cost |  |  | Fair Value |
Investment |  | Amount |  |  | % |  |  | Amount |  |  | % |  |  | Amount |  |  | % |  |  | Amount |  |  | % |
Secured Loans |  | $ | 1,322,999 |  |  |  | 75.1 | % |  | $ | 1,286,668 |  |  |  | 74.5 | % |  | $ | 918,836 |  |  |  | 69.7 | % |  | $ | 885,299 |  |  |  | 69.5 | %
Equipment Financings |  |  | 317,962 |  |  |  | 18.1 | % |  |  | 315,463 |  |  |  | 18.3 | % |  |  | 336,934 |  |  |  | 25.5 | % |  |  | 336,778 |  |  |  | 26.4 | %
Equity |  |  | 78,585 |  |  |  | 4.5 | % |  |  | 71,985 |  |  |  | 4.2 | % |  |  | 33,302 |  |  |  | 2.5 | % |  |  | 19,576 |  |  |  | 1.5 | %
Warrants |  |  | 40,680 |  |  |  | 2.3 | % |  |  | 51,454 |  |  |  | 3.0 | % |  |  | 30,244 |  |  |  | 2.3 | % |  |  | 33,527 |  |  |  | 2.6 | %
Total |  | $ | 1,760,226 |  |  |  | 100.0 | % |  | $ | 1,725,570 |  |  |  | 100.0 | % |  | $ | 1,319,316 |  |  |  | 100.0 | % |  | $ | 1,275,180 |  |  |  | 100.0 | %

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