Financial Highlights (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Investment Company, Net Assets [Roll Forward]
Net asset value, beginning of period (in usd per share)			$ 14.99	$ 15.08
Net investment income (in usd per share)			1.42	1.00
Net realized and unrealized gain (loss) (in usd per share)			0.13	(0.30)
Total from operations (in usd per share)			1.55	0.70
Repurchase of common shares (in usd per share)			0.02	0
Distributions declared from earnings (in usd per share)			(1.16)	(0.93)
Total increase (decrease) in net assets (in usd per share)			0.41	(0.23)
Net asset value, end of period (in usd per share)	$ 15.40	$ 14.85	$ 15.40	$ 14.85
Shares outstanding, end of period (in shares)	389,732,868	393,823,013	389,732,868	393,823,013		392,476,687
Per share market value at end of period (in usd per share)	$ 13.85	$ 10.37	$ 13.85	$ 10.37
Total Return, based on market value			30.70%	(21.10%)
Total Return, based on net asset value			11.90%	5.20%
Ratio of total expenses to average net assets			13.80%	10.40%
Ratio of net investment income to average net assets			12.40%	9.00%
Net assets, end of period	$ 6,000,009	$ 5,847,788	$ 6,000,009	$ 5,847,788	$ 5,948,964	$ 5,882,403	$ 5,704,446	$ 5,937,877
Weighted-average shares outstanding (in shares)	389,703,612	393,823,013	390,223,606	394,103,935
Portfolio turnover rate			5.10%	10.10%