Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Investment Income
Total investment income from non-controlled, non-affiliated investments	$ 399,022	$ 314,053	$ 1,170,867	$ 851,498
Expenses
Interest expense	110,445	81,210	324,416	209,935
Management fees	47,796	46,886	143,911	141,172
Performance based incentive fees	40,314	31,134	117,640	83,630
Professional fees	3,890	3,788	11,697	11,022
Directors’ fees	445	276	960	832
Other general and administrative	3,349	2,381	9,158	6,656
Total Operating Expenses	206,239	165,675	607,782	453,247
Net Investment Income (Loss) Before Taxes	192,783	148,378	563,085	398,251
Income tax expense (benefit), including excise tax expense (benefit)	2,730	1,604	8,495	3,998
Net Investment Income (Loss) After Taxes	190,053	146,774	554,590	394,253
Net change in unrealized gain (loss):
Net change in unrealized gain (loss)			106,470	(115,913)
Translation of assets and liabilities in foreign currencies	(2,292)	(3,807)	278	(7,510)
Income tax (provision) benefit	(1,521)	0	(4,217)	0
Total Net Change in Unrealized Gain (Loss)	16,989	118,587	102,531	(123,423)
Net realized gain (loss):
Non-controlled, non-affiliated investments			(52,129)	4,853
Foreign currency transactions	(339)	(135)	(647)	(1,218)
Total Net Realized Gain (Loss)	(104)	66	(52,776)	3,635
Total Net Realized and Change in Unrealized Gain (Loss)	16,885	118,653	49,755	(119,788)
Net Increase (Decrease) in Net Assets Resulting from Operations	$ 206,938	$ 265,427	$ 604,345	$ 274,465
Earnings per share, basic (in usd per share)	$ 0.53	$ 0.67	$ 1.55	$ 0.70
Earnings per share, diluted (in usd per share)	$ 0.53	$ 0.67	$ 1.55	$ 0.70
Weighted average shares outstanding, basic (in shares)	389,703,612	393,823,013	390,223,606	394,103,935
Weighted-average shares outstanding, diluted (in shares)	389,703,612	393,823,013	390,223,606	394,103,935
Investment income from non-controlled, non-affiliated investments:
Investment Income
Interest income	$ 307,701	$ 240,601	$ 894,371	$ 655,303
Payment-in-kind (“PIK”) interest income	40,925	30,539	128,783	79,698
Dividend income	17,324	14,867	52,764	36,280
Other income	2,332	5,408	12,539	14,794
Total investment income from non-controlled, non-affiliated investments	368,282	291,415	1,088,457	786,075
Net change in unrealized gain (loss):
Net change in unrealized gain (loss)	22,371	75,368	91,855	(147,545)
Net realized gain (loss):
Non-controlled, non-affiliated investments	235	201	353	4,853
Non-controlled, affiliated investments
Investment Income
Dividend income	36	0	213	0
Other income			0
Total investment income from non-controlled, non-affiliated investments	36	0	213	0
Net change in unrealized gain (loss):
Net change in unrealized gain (loss)	507	0	502	0
Net realized gain (loss):
Non-controlled, non-affiliated investments	0	0	(52,482)	0
Investment income from controlled, affiliated investments:
Investment Income
Interest income	5,717	2,140	13,944	5,767
Payment-in-kind (“PIK”) interest income	773	0	773	0
Dividend income	24,032	20,303	66,720	59,136
Other income	182	195	760	520
Total investment income from non-controlled, non-affiliated investments	30,704	22,638	82,197	65,423
Net change in unrealized gain (loss):
Net change in unrealized gain (loss)	$ (2,076)	$ 47,026	$ 14,113	$ 31,632