SECURED DEBT - Schedule of Debt Obligations (Details) - USD ($)	Dec. 31, 2023	Dec. 07, 2023	Dec. 06, 2023	Nov. 21, 2023	Nov. 20, 2023	Jun. 23, 2023	Dec. 31, 2022	May 20, 2022	May 19, 2022	Sep. 10, 2020
Debt Instrument [Line Items]
Total Commitment	$ 1,167,000,000						$ 967,000,000
Amount Outstanding	951,877,000						705,447,000
Unused Portion	215,123,000						261,553,000
Amount Available	214,960,000						253,897,000
CLO-I | Secured Debt
Debt Instrument [Line Items]
Total Commitment	342,000,000						342,000,000
Amount Outstanding	342,000,000						342,000,000
Unused Portion	0						0
Amount Available	0						0
CLO-II | Secured Debt
Debt Instrument [Line Items]
Total Commitment	215,000,000
Amount Outstanding	215,000,000
Unused Portion	0
Amount Available	0
Secured Debt | Wells Fargo Financing Facility | Credit Facility
Debt Instrument [Line Items]
Total Commitment	275,000,000						275,000,000	$ 275,000,000	$ 350,000,000
Amount Outstanding	231,000,000						111,300,000
Unused Portion	44,000,000						163,700,000
Amount Available	43,837,000						158,916,000
Secured Debt | Subscription Facility | Credit Facility
Debt Instrument [Line Items]
Total Commitment							50,000,000			$ 50,000,000
Amount Outstanding							0
Unused Portion							50,000,000
Amount Available							50,000,000
Secured Debt | SMBC Financing Facility | Credit Facility
Debt Instrument [Line Items]
Total Commitment	150,000,000	$ 150,000,000	$ 300,000,000	$ 150,000,000	$ 300,000,000		300,000,000
Amount Outstanding	37,377,000						252,147,000
Unused Portion	112,623,000						47,853,000
Amount Available	112,623,000						$ 44,981,000
Secured Debt | Revolving Credit Facility | Credit Facility
Debt Instrument [Line Items]
Total Commitment	185,000,000					$ 185,000,000
Amount Outstanding	126,500,000
Unused Portion	58,500,000
Amount Available	$ 58,500,000