Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Investment income:
Total investment income	$ 6,694,692,000	$ 5,738,009,000	$ 3,602,347,000
Expenses:
Interest expense	1,838,600,000	1,759,437,000	990,538,000
Management fees (Note 3)	432,447,000	316,238,000	259,944,000
Income based incentive fees (Note 3)	543,693,000	446,922,000	288,892,000
Capital gains based incentive fees (Note 3)	0	0	(15,058,000)
Professional fees	11,925,000	20,114,000	12,917,000
Board of Trustees’ fees	895,000	913,000	877,000
Administrative service expenses (Note 3)	6,716,000	6,729,000	5,767,000
Other general and administrative	16,989,000	23,120,000	15,156,000
Amortization of continuous offering costs	3,851,000	3,253,000	5,036,000
Total expenses before tax expense	2,952,489,000	2,646,721,000	1,616,795,000
Net investment income before tax expense	3,742,203,000	3,091,288,000	1,985,552,000
Excise and other tax expense	33,724,000	32,826,000	975,000
Net investment income after tax expense	3,708,479,000	3,058,462,000	1,984,577,000
Net change in unrealized appreciation (depreciation):
Unrealized gain (loss) of investments	(114,191,000)	632,049,000	(1,050,537,000)
Derivative instruments (Note 6)	25,699,000	(13,259,000)	(4,301,000)
Foreign currency and other transactions	135,000	(3,085,000)	9,160,000
Income tax (provision) benefit	(8,930,000)	0	0
Net change in unrealized appreciation (depreciation)	(97,287,000)	615,705,000	(1,045,678,000)
Net realized gain (loss):
Non-controlled/non-affiliated investments	(176,654,000)	(308,564,000)	(252,197,000)
Derivative instruments (Note 6)	21,086,000	3,063,000	(43,104,000)
Foreign currency and other transactions	28,904,000	(5,483,000)	19,472,000
Net realized gain (loss)	(126,664,000)	(310,984,000)	(275,829,000)
Net realized and change in unrealized gain (loss)	(223,951,000)	304,721,000	(1,321,507,000)
Net increase (decrease) in net assets resulting from operations	3,484,528,000	3,363,183,000	663,070,000
Non-controlled/non-affiliated investments
Investment income:
Interest income	6,008,101,000	5,196,090,000	3,330,329,000
Payment-in-kind interest income	370,198,000	218,469,000	129,475,000
Dividend income	1,387,000	198,000	2,152,000
Fee income	14,899,000	3,281,000	27,939,000
Net change in unrealized appreciation (depreciation):
Unrealized gain (loss) of investments	57,540,000	550,279,000	(1,007,789,000)
Net realized gain (loss):
Non-controlled/non-affiliated investments	(176,654,000)	(308,777,000)	(252,197,000)
Non-controlled/affiliated investments
Investment income:
Dividend income	13,000	16,000	0
Net change in unrealized appreciation (depreciation):
Unrealized gain (loss) of investments	(1,105,000)	(153,000)	1,062,000
Net realized gain (loss):
Non-controlled/non-affiliated investments	0	213,000	0
Controlled/affiliated investments
Investment income:
Interest income	3,931,000	0	0
Payment-in-kind interest income	15,087,000	2,420,000	0
Dividend income	281,076,000	317,535,000	112,452,000
Net change in unrealized appreciation (depreciation):
Unrealized gain (loss) of investments	(170,626,000)	81,923,000	(43,810,000)
Class S
Expenses:
Distribution and shareholder servicing fees	96,127,000	68,878,000	50,424,000
Class D
Expenses:
Distribution and shareholder servicing fees	$ 1,246,000	$ 1,117,000	$ 2,302,000