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Investments - Company Portfolio by Security and Investment (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 592,862 | [1],[2],[3],[4],[5],[6] | $ 476,432 | [7],[8],[9],[10],[11],[12]
Fair Value |  | $ 539,701 | [1],[2],[3],[4],[5],[6] | $ 405,021 | [7],[8],[9],[10],[11],[12]
Fair Value Percentage of Total Portfolio |  | 100.00% |  | 100.00% |
Services: Business |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 77,965 |  | $ 55,141 |
Fair Value |  | $ 79,471 |  | $ 51,776 |
Fair Value Percentage of Total Portfolio |  | 14.70% |  | 12.80% |
Healthcare & Pharmaceuticals |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 73,243 |  | $ 43,882 |
Fair Value |  | $ 74,275 |  | $ 41,872 |
Fair Value Percentage of Total Portfolio |  | 13.80% |  | 10.30% |
High Tech Industries |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 74,025 |  | $ 55,932 |
Fair Value |  | $ 69,729 |  | $ 50,138 |
Fair Value Percentage of Total Portfolio |  | 12.90% |  | 12.40% |
Banking, Finance, Insurance & Real Estate |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 46,699 |  | $ 44,191 |
Fair Value |  | $ 46,725 |  | $ 42,854 |
Fair Value Percentage of Total Portfolio |  | 8.70% |  | 10.60% |
Joint Venture |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 62,020 |  | $ 66,747 |
Fair Value |  | $ 46,301 |  | $ 54,153 |
Fair Value Percentage of Total Portfolio |  | 8.60% |  | 13.40% |
Consumer goods: Durable |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 40,403 |  | $ 28,493 |
Fair Value |  | $ 38,039 |  | $ 27,028 |
Fair Value Percentage of Total Portfolio |  | 7.00% |  | 6.70% |
Finance |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 28,587 |  | $ 14,815 |
Fair Value |  | $ 30,125 |  | $ 14,725 |
Fair Value Percentage of Total Portfolio |  | 5.60% |  | 3.60% |
Media: Broadcasting & Subscription |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 25,003 |  | $ 19,095 |
Fair Value |  | $ 25,518 |  | $ 12,972 |
Fair Value Percentage of Total Portfolio |  | 4.70% |  | 3.20% |
Beverage, Food and Tobacco |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 20,328 |  | $ 12,563 |
Fair Value |  | $ 18,800 |  | $ 11,612 |
Fair Value Percentage of Total Portfolio |  | 3.50% |  | 2.90% |
Aerospace and Defense |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 14,477 |  | $ 11,403 |
Fair Value |  | $ 14,841 |  | $ 11,390 |
Fair Value Percentage of Total Portfolio |  | 2.70% |  | 2.80% |
Machinery (Non-Agrclt/Constr/Electr) |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 11,348 |  | $ 11,705 |
Fair Value |  | $ 14,356 |  | $ 13,608 |
Fair Value Percentage of Total Portfolio |  | 2.70% |  | 3.40% |
Interactive Media & Services |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 13,388 |  | $ 2,539 |
Fair Value |  | $ 14,204 |  | $ 2,559 |
Fair Value Percentage of Total Portfolio |  | 2.60% |  | 0.60% |
Chemicals, Plastics and Rubber |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 11,963 |  | $ 10,135 |
Fair Value |  | $ 11,366 |  | $ 9,628 |
Fair Value Percentage of Total Portfolio |  | 2.10% |  | 2.40% |
IT Consulting & Other Services |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 7,793 |  | $ 2,157 |
Fair Value |  | $ 8,497 |  | $ 2,243 |
Fair Value Percentage of Total Portfolio |  | 1.60% |  | 0.50% |
Transportation: Consumer |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 7,355 |  | $ 7,410 |
Fair Value |  | $ 7,395 |  | $ 7,470 |
Fair Value Percentage of Total Portfolio |  | 1.40% |  | 1.80% |
Capital Equipment |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 5,843 |  | $ 8,016 |
Fair Value |  | $ 5,038 |  | $ 1,291 |
Fair Value Percentage of Total Portfolio |  | 0.90% |  | 0.30% |
Automotive |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 4,539 |  |  |
Fair Value |  | $ 4,584 |  |  |
Fair Value Percentage of Total Portfolio |  | 0.80% |  | 0.00% |
Transportation: Cargo |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 5,666 |  | $ 4,223 |
Fair Value |  | $ 4,170 |  | $ 3,782 |
Fair Value Percentage of Total Portfolio |  | 0.80% |  | 0.90% |
Metals & Mining |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 10,445 |  | $ 9,950 |
Fair Value |  | $ 4,151 |  | $ 5,103 |
Fair Value Percentage of Total Portfolio |  | 0.80% |  | 1.30% |
Energy: Electricity |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 3,645 |  | $ 2,696 |
Fair Value |  | $ 3,774 |  | $ 2,702 |
Fair Value Percentage of Total Portfolio |  | 0.70% |  | 0.70% |
Consumer Services |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 2,934 |  |  |
Fair Value |  | $ 2,934 |  |  |
Fair Value Percentage of Total Portfolio |  | 0.50% |  | 0.00% |
Containers, Packaging and Glass |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 2,724 |  | $ 2,728 |
Fair Value |  | $ 2,706 |  | $ 2,702 |
Fair Value Percentage of Total Portfolio |  | 0.50% |  | 0.70% |
Hotel, Gaming & Leisure |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 7,716 |  | $ 7,006 |
Fair Value |  | $ 2,421 |  | $ 2,205 |
Fair Value Percentage of Total Portfolio |  | 0.40% |  | 0.50% |
Services: Consumer |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 2,633 |  | $ 2,699 |
Fair Value |  | $ 2,184 |  | $ 2,406 |
Fair Value Percentage of Total Portfolio |  | 0.40% |  | 0.60% |
CLO Fund Securities |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 1,381 |  | $ 5,318 |
Fair Value |  | $ 2,179 |  | $ 5,193 |
Fair Value Percentage of Total Portfolio |  | 0.40% |  | 1.30% |
Retail |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 8,365 |  | $ 10,246 |
Fair Value |  | $ 1,844 |  | $ 6,853 |
Fair Value Percentage of Total Portfolio |  | 0.30% |  | 1.70% |
Construction & Building |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 1,447 |  | $ 7,648 |
Fair Value |  | $ 1,397 |  | $ 7,596 |
Fair Value Percentage of Total Portfolio |  | 0.30% |  | 1.90% |
Application Software |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 1,166 |  | $ 1,165 |
Fair Value |  | $ 1,207 |  | $ 1,166 |
Fair Value Percentage of Total Portfolio |  | 0.20% |  | 0.20% |
Telecommunications |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 1,541 |  | $ 1,541 |
Fair Value |  | $ 832 |  | $ 805 |
Fair Value Percentage of Total Portfolio |  | 0.20% |  | 0.20% |
Energy: Oil & Gas |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 394 |  | $ 25 |
Fair Value |  |  |  | $ 603 |
Fair Value Percentage of Total Portfolio |  | 0.10% |  | 0.00% |
Diversified Financial Services |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 35 |  | $ 3,058 |
Fair Value |  | $ 35 |  | $ 3,074 |
Fair Value Percentage of Total Portfolio |  | 0.00% |  | 0.80% |
Healthcare, Education and Childcare |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  |  |  | $ 6,114 |
Fair Value |  |  |  | $ 6,115 |
Fair Value Percentage of Total Portfolio |  | 0.00% |  | 1.50% |
Asset Management Company |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 17,791 |  | $ 17,791 |
Fair Value Percentage of Total Portfolio |  | 0.00% |  | 0.00% |
First Lien Debt |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 396,117 |  | $ 311,673 |
Fair Value |  | $ 386,403 |  | $ 289,957 |
Fair Value Percentage of Total Portfolio |  | 71.60% |  | 71.60% |
Second Lien Debt |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 44,507 |  | $ 34,892 |
Fair Value |  | $ 38,994 |  | $ 28,996 |
Fair Value Percentage of Total Portfolio |  | 7.20% |  | 7.20% |
Subordinated Debt |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 26,788 |  | $ 8,059 |
Fair Value |  | $ 24,832 |  | $ 1,740 |
Fair Value Percentage of Total Portfolio |  | 4.60% |  | 0.40% |
Collateralized Loan Obligations |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 1,381 |  | $ 5,318 |
Fair Value |  | $ 2,179 |  | $ 5,193 |
Fair Value Percentage of Total Portfolio |  | 0.40% |  | 1.30% |
Joint Ventures |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 62,020 |  | $ 66,747 |
Fair Value |  | $ 46,301 |  | $ 54,153 |
Fair Value Percentage of Total Portfolio |  | 8.60% |  | 13.40% |
Equity |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | $ 44,227 |  | $ 31,921 |
Fair Value |  | $ 40,793 |  | $ 24,762 |
Fair Value Percentage of Total Portfolio |  | 7.60% |  | 6.10% |
Asset Manager Affiliates |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost | [13] | $ 17,791 |  | $ 17,791 |
Derivatives |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Cost/Amortized Cost |  | 31 |  | 31 |
Fair Value |  | $ 199 |  | $ 220 |
Fair Value Percentage of Total Portfolio |  | 0.00% |  |  |
[1] | All debt investments are income producing, unless otherwise noted. Equity and warrant investments are non-income producing, unless otherwise noted.
[2] | All investments valued using unobservable inputs (Level III), unless otherwise noted.
[3] | Percentages are based on net assets as of September 30, 2025.
[4] | Reflects the fair market value of all investments as of September 30, 2025 as determined in good faith using significant unobservable inputs by the Adviser in its role as “valuation designee” in accordance with Rule 2a-5 under the 1940 Act, pursuant to valuation policies and procedures that have been approved by the Company’s board of directors (the “Board”).
[5] | The Company's investments are generally acquired in private transactions exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”) and, therefore, are generally subject to limitations on resale, and may be deemed to be “restricted securities” under the Securities Act of 1933.
[6] | The aggregate cost of investments for federal income tax purposes is approximately $572.1 million. The aggregate gross unrealized appreciation is approximately $74.1 million, the aggregate gross unrealized depreciation is approximately $106.5 million, and the net unrealized depreciation is approximately $32.4 million.
[7] | All debt investments are income producing, unless otherwise noted. Equity and warrant investments are non-income producing, unless otherwise noted.
[8] | All investments valued using unobservable inputs (Level III), unless otherwise noted.
[9] | Percentages are based on net assets as of December 31, 2024.
[10] | Reflects the fair market value of all investments as of December 31, 2024 as determined in good faith using significant unobservable inputs by the Adviser in its role as “valuation designee” in accordance with Rule 2a-5 under the 1940 Act, pursuant to valuation policies and procedures that have been approved by the Company’s board of directors (the “Board”).
[11] | The Company's investments are generally acquired in private transactions exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”) and, therefore, are generally subject to limitations on resale, and may be deemed to be “restricted securities'' under the Securities Act of 1933.
[12] | The aggregate cost of investments for federal income tax purposes is approximately $458.4 million. The aggregate gross unrealized appreciation is approximately $50.0 million, the aggregate gross unrealized depreciation is approximately $103.3 million, and the net unrealized depreciation is approximately $53.3 million.
[13] | Represents the equity investment in the Asset Manager Affiliates.

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