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EXTERNAL INVESTMENT MANAGER - Narrative (Details) - USD ($)		1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 29, 2025	Oct. 31, 2020	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Related Party Transaction [Line Items]
Net investment income			$ 93,797,000	$ 93,334,000	$ 181,640,000	$ 183,144,000
Incentive fee payable, capital-gain-based			0		0
External Investment Manager
Related Party Transaction [Line Items]
Net investment income			$ 8,700,000	$ 8,700,000	$ 17,000,000.0	$ 16,600,000
External Investment Manager \| Advisory Agreement, Previous \| Affiliated Entity
Related Party Transaction [Line Items]
Management and service fees (as a percent)		1.75%
Management and service fees, incentive rate (as a percent)		20.00%
External Investment Manager \| Advisory Agreement, Active \| Affiliated Entity
Related Party Transaction [Line Items]
Management and service fees (as a percent)	1.50%
Management and service fees, incentive rate (as a percent)	17.50%
Management and service fees, catch up feature rate (as a percent)	50.00%