FINANCIAL HIGHLIGHTS (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Per share data:
Net asset value per share, beginning balance (in dollars per share)	$ 20.80	$ 20.84
Net investment income (in dollars per share)	1.66	1.78
Net realized gain (loss) on investments / foreign currency transactions / forward currency contracts (in dollars per share)	0	(0.26)
Net unrealized appreciation (depreciation) on investments / foreign currency transactions / forward currency contracts (in dollars per share)	(0.17)	0.22
Total increase from investment operations (in dollars per share)	1.49	1.74
Dividends paid to stockholders from net investment income (in dollars per share)	(1.76)	(1.80)
Net asset value per share, ending balance (in dollars per share)	$ 20.53	$ 20.78
Shares outstanding at end of period (in shares)	128,852,866	89,457,636	95,007,965
Net assets at end of period	$ 2,645,822	$ 1,859,275
Average net assets	$ 2,263,479	$ 1,619,331
Ratio of total expenses to average net assets (annualized)	6.78%	7.91%
Ratio of net investment income to average net assets (annualized)	11.08%	11.84%
Portfolio turnover ratio (annualized)	24.89%	19.01%
Total return	7.41%	8.64%