RELATED PARTY TRANSACTIONS - Narrative (Details)							4 Months Ended	12 Months Ended
	Jan. 30, 2026 day	Apr. 29, 2025 day	Jan. 21, 2022	Oct. 11, 2021	Jun. 26, 2017 component	Apr. 18, 2017 day	Jan. 21, 2022	Dec. 31, 2025 USD ($) member shares	Dec. 31, 2024 USD ($) shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 shares	Dec. 31, 2021 shares	Dec. 31, 2020 shares	Dec. 31, 2019 shares	Dec. 31, 2018 shares	Dec. 31, 2017 shares
Related Party Transaction [Line Items]
Incentive fees								$ 20,889,000	$ 18,801,000	$ 19,941,000
Management and incentive fees payable								10,013,000	8,738,000
Administrative service fees								1,680,000	1,791,000	1,426,000
Administrative service fees payable								1,339,000	1,504,000
Other general and administrative								2,973,000	2,825,000	$ 2,313,000
Other accrued expenses and liabilities								$ 3,179,000	$ 3,178,000
Common stock, issued (in shares) | shares								93,812,679	76,812,863
Common stock, outstanding (in shares) | shares								93,812,679	76,812,863	56,280,182	58,396,516	57,005,057	49,062,820	35,769,223	14,299,500	4,130,683
Directors’ fees and expenses								$ 416,000	$ 332,000	$ 269,000
Class S Shares
Related Party Transaction [Line Items]
Common stock, issued (in shares) | shares								0	0
Common stock, outstanding (in shares) | shares								0
Class D Shares
Related Party Transaction [Line Items]
Common stock, issued (in shares) | shares								0	0
Common stock, outstanding (in shares) | shares								0
Related party
Related Party Transaction [Line Items]
Administrative service fees payable								$ 1,339,000	$ 1,504,000
Other general and administrative								1,048,000	840,000	795,000
Other accrued expenses and liabilities								552,000	229,000
Independent directors
Related Party Transaction [Line Items]
Other accrued expenses and liabilities								$ 0	0
Number board members | member								7
Number of board members, independent trustees | member								4
Investment Advisory Agreement | Related party
Related Party Transaction [Line Items]
Agreement period				2 years	2 years
Number of components | component					2
Base management fee rate			1.00%				1.00%
Extension period		1 year
Termination notice, number of written days notice threshold | day		60
Net investment income incentive fees | Related party
Related Party Transaction [Line Items]
Incentive rate			12.50%		15.00%
Quarterly hurdle rate | Related party
Related Party Transaction [Line Items]
Incentive rate			1.25%		1.75%
Annualized hurdle rate | Related party
Related Party Transaction [Line Items]
Incentive rate			5.00%		7.00%
Total capital gains incentive fees
Related Party Transaction [Line Items]
Incentive fees								$ 0	$ 0	$ 0
Total capital gains incentive fees | Related party
Related Party Transaction [Line Items]
Incentive rate			12.50%		15.00%
Cumulative total return threshold | Related party
Related Party Transaction [Line Items]
Incentive rate					7.00%
Administration agreement | Related party
Related Party Transaction [Line Items]
Extension period		1 year
Termination notice, number of written days notice threshold | day						60
Sub-administration agreement | Related party
Related Party Transaction [Line Items]
Agreement period		1 year
Placement agent agreement | Subsequent event
Related Party Transaction [Line Items]
Termination notice, number of written days notice threshold | day	60