PORTFOLIO INVESTMENTS AND FAIR VALUE - Total Fair Value and Cost of Investments (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2024 USD ($) company	Dec. 31, 2023 USD ($) company
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 880,153,711	$ 902,143,550
Fair value of investments	$ 875,884,146	$ 874,460,683
Investments In Number Of Portfolio Companies | company	94	93
% of Total Investments at fair value	100.00%	100.00%
Senior SecuredLoans-First Lien
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 801,208,004	$ 793,819,152
Fair value of investments	$ 782,845,785	$ 774,789,320
% of Total Investments at fair value	4.50%	4.50%
Senior Secured Loans-Second Lien
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 12,044,047	$ 42,269,568
Fair value of investments	11,948,850	21,957,500
Unsecured Debt
Investment Holdings 1 [Line Items]
Investments, amortized cost	6,310,491	6,138,183
Fair value of investments	6,210,612	5,956,280
Equity Securities
Investment Holdings 1 [Line Items]
Investments, amortized cost	60,591,169	59,916,647
Fair value of investments	$ 74,878,899	$ 71,757,583