FAIR VALUE MEASUREMENTS - Unobservable Inputs (Details) $ in Thousands	Dec. 31, 2023 USD ($)		Dec. 31, 2022 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 51,545	[1],[2]	$ 0
Investments in first lien debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	51,529
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	49,645
Level 3 | Investments in first lien debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	49,629
Level 3 | Investments in first lien debt | Yield Analysis | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 49,629
Level 3 | Investments in first lien debt | Yield Analysis | Low | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.0972
Level 3 | Investments in first lien debt | Yield Analysis | High | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.1203
Level 3 | Investments in first lien debt | Yield Analysis | Weighted Average | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.1097
Level 3 | Common equity | Market Approach | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 16
Level 3 | Common equity | Market Approach | Low | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	7.60
Level 3 | Common equity | Market Approach | High | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	7.60
Level 3 | Common equity | Market Approach | Weighted Average | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	7.60

[1] Unless otherwise indicated, issuers of debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Consolidated Schedule of Investments) are denominated in dollars. All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. Under the Investment Company Act of 1940, as amended (together with the rules and regulations promulgated thereunder, the “1940 Act”), the Company would be deemed to “control” a portfolio company if the Company owned more than 25% of its outstanding voting securities and/or held the power to exercise control over the management or policies of the portfolio company. As of December 31, 2023, the Company does not “control” any of these portfolio companies. Under the 1940 Act, the Company would be deemed an “affiliated person” of a portfolio company if the Company owns 5% or more of the portfolio company’s outstanding voting securities. As of December 31, 2023, the Company is not an “affiliated person” of any of its portfolio companies.

[2] Unless otherwise indicated, the Company's investments are pledged as collateral supporting the amounts outstanding under the SMBC Facility (as defined below). See Note 6 "Debt".