Consolidated Statements of Changes in Net Assets - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operations:
Net investment income after tax expense	$ 3,708,479	$ 3,058,462	$ 1,984,577
Net change in unrealized appreciation (depreciation)	(97,287)	615,705	(1,045,678)
Net realized gain (loss)	(126,664)	(310,984)	(275,829)
Net increase (decrease) in net assets resulting from operations	3,484,528	3,363,183	663,070
Distributions to common shareholders:
Net decrease in net assets resulting from distributions	(3,484,206)	(2,541,782)	(1,798,404)
Share transactions:
Repurchased shares, net of early repurchase deduction	(1,100)
Total increase (decrease) in net assets	10,321,326	5,849,372	9,830,245
Net assets, beginning of period	28,534,437	22,685,065	12,854,820
Net assets, end of period	38,855,763	28,534,437	22,685,065
Class I
Share transactions:
Proceeds from shares sold	7,452,201	4,301,597	7,657,964
Share transfers between classes	125,969	1,160,908	72,944
Distributions reinvested	1,093,651	779,404	520,100
Class I | Common Stock
Distributions to common shareholders:
Net decrease in net assets resulting from distributions	(2,358,733)	(1,729,499)	(1,239,553)
Share transactions:
Proceeds from shares sold	7,452,201	4,301,597	7,657,964
Share transfers between classes	125,969	1,160,908	72,944
Distributions reinvested	1,093,651	779,404	520,100
Repurchased shares, net of early repurchase deduction	(1,658,976)	(2,667,221)	(1,934,680)
Net increase (decrease) from share transactions	7,012,845	3,574,688	6,316,328
Net assets, beginning of period	18,649,595	14,537,932	8,985,674
Net assets, end of period	25,661,534	18,649,595	14,537,932
Class S
Share transactions:
Proceeds from shares sold	3,134,546	2,442,624	3,867,398
Share transfers between classes	(125,680)	(69,353)	(27,793)
Distributions reinvested	528,016	348,634	204,169
Class S | Common Stock
Distributions to common shareholders:
Net decrease in net assets resulting from distributions	(1,074,768)	(767,401)	(478,548)
Share transactions:
Proceeds from shares sold	3,134,546	2,442,624	3,867,398
Share transfers between classes	(125,680)	(69,353)	(27,793)
Distributions reinvested	528,016	348,634	204,169
Repurchased shares, net of early repurchase deduction	(419,218)	(441,234)	(207,608)
Net increase (decrease) from share transactions	3,117,664	2,280,671	3,836,166
Net assets, beginning of period	9,492,496	6,947,313	3,433,213
Net assets, end of period	12,611,626	9,492,496	6,947,313
Class D
Share transactions:
Proceeds from shares sold	198,906	259,923	837,827
Share transfers between classes	(289)	(1,091,555)	(45,151)
Distributions reinvested	8,931	18,060	36,842
Class D | Common Stock
Distributions to common shareholders:
Net decrease in net assets resulting from distributions	(50,705)	(44,882)	(80,303)
Share transactions:
Proceeds from shares sold	198,906	259,923	837,827
Share transfers between classes	(289)	(1,091,555)	(45,151)
Distributions reinvested	8,931	18,060	36,842
Repurchased shares, net of early repurchase deduction	(17,053)	(13,816)	(16,433)
Net increase (decrease) from share transactions	190,495	(827,388)	813,085
Net assets, beginning of period	392,346	1,199,819	435,933
Net assets, end of period	$ 582,603	$ 392,346	$ 1,199,819