Investment Portfolio - Composition by Investment Type (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024		Dec. 31, 2023
Schedule of Investments [Line Items]
Amortized Cost	$ 439,046		$ 260,461
Fair Value	$ 444,376	[1]	$ 263,930	[2]
Percentage of Portfolio | Investment Type Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	100.00%		100.00%
Net Senior Secured Loans—First Lien
Schedule of Investments [Line Items]
Amortized Cost	$ 355,938		$ 201,782
Fair Value	$ 359,921	[1]	$ 204,314	[2]
Net Senior Secured Loans—First Lien | Percentage of Portfolio | Investment Type Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	81.00%		77.40%
Subordinated Debt
Schedule of Investments [Line Items]
Amortized Cost	$ 1,508		$ 973
Fair Value	$ 1,496	[1]	$ 961	[2]
Subordinated Debt | Percentage of Portfolio | Investment Type Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.30%		0.40%
Asset Based Finance
Schedule of Investments [Line Items]
Amortized Cost	$ 81,600		$ 57,706
Fair Value	$ 82,959	[1]	$ 58,655	[2]
Asset Based Finance | Percentage of Portfolio | Investment Type Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	18.70%		22.20%

[1] See Note 7 for additional information regarding the fair value of the Company’s financial instruments.

[2] See Note 7 for additional information regarding the fair value of the Company’s financial instruments.