Consolidated Statements of Changes in Net Assets (Unaudited) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Beginning balance	$ 4,111,606	$ 4,036,470	$ 2,380,563	$ 1,817,067	$ 4,036,470	$ 1,817,067
Net investment income (loss)	147,018	152,562	86,265	72,722	299,580	158,985
Net change in unrealized gains (losses) on investments and foreign currency translation	13,698	(24,733)	16,667	22,741	(11,035)	39,410
Net realized gains (losses) on investments and foreign currency transactions	(2,790)	278	4,662	2,262	(2,512)	6,924
Issuance of common shares, Value			300,000	499,736
Stock issued in connection with dividend reinvestment plan	42,921	41,945	24,763	22,062	$ 84,900	$ 46,800
Stock issued in connection with dividend reinvestment plan, Shares					2,935,944	1,664,806
Dividends declared from net investment income	(100,200)	(94,916)	(63,413)	(56,027)
Ending balance	4,212,253	4,111,606	2,749,507	2,380,563	$ 4,212,253	$ 2,749,507
Common Shares
Beginning balance	$ 142	$ 140	$ 84	$ 65	$ 140	$ 65
Beginning balance, Shares	141,664,937	140,208,028	83,622,723	65,478,775	140,208,028	65,478,775
Issuance of common shares, Value			$ 10	$ 18
Issuance of common shares, Shares			10,152,231	17,348,908
Stock issued in connection with dividend reinvestment plan	$ 1	$ 2	$ 1	$ 1
Stock issued in connection with dividend reinvestment plan, Shares	1,479,035	1,456,909	869,766	795,040	2,935,944	1,664,806
Ending balance	$ 143	$ 142	$ 95	$ 84	$ 143	$ 95
Ending balance, Shares	143,143,972	141,664,937	94,644,720	83,622,723	143,143,972	94,644,720
Paid in Capital in Excess of Par
Beginning balance	$ 3,965,682	$ 3,923,739	$ 2,256,205	$ 1,734,426	$ 3,923,739	$ 1,734,426
Issuance of common shares, Value			299,990	499,718
Stock issued in connection with dividend reinvestment plan	42,920	41,943	24,762	22,061
Ending balance	4,008,602	3,965,682	2,580,957	2,256,205	4,008,602	2,580,957
Distributable Earnings
Beginning balance	145,782	112,591	124,274	82,576	112,591	82,576
Net investment income (loss)	147,018	152,562	86,265	72,722
Net change in unrealized gains (losses) on investments and foreign currency translation	13,698	(24,733)	16,667	22,741
Net realized gains (losses) on investments and foreign currency transactions	(2,790)	278	4,662	2,262
Dividends declared from net investment income	(100,200)	(94,916)	(63,413)	(56,027)
Ending balance	$ 203,508	$ 145,782	$ 168,455	$ 124,274	$ 203,508	$ 168,455