Joint Venture - Selected Statement of Operations Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Investment income:
Total investment income	$ 1,044,979	$ 238,815	$ 2,337,502	$ 396,328
Expenses:
Interest expense	294,772	39,759	566,332	60,544
Total expenses	473,797	94,618	996,001	165,104
Net investment income before excise tax	571,182	146,537	1,341,501	264,325
Tax Expense	0	0	292	0
Net investment income after excise tax	571,182	146,537	1,341,209	264,325
Net realized and change in unrealized gain (loss) on investments
Net change in unrealized gain (loss) on investments	(135,308)	21,126	(1,085,983)	89,657
Net realized gains on investments	(99,556)	4,255	(110,874)	10,273
Net realized and unrealized gain (loss)	(234,864)	25,381	(1,196,857)	99,930
Net increase (decrease) in net assets resulting from operations	336,318	171,918	144,352	364,255
Non-controlled/non-affiliated investments
Investment income:
Interest income	970,341	$ 231,869	2,150,852	$ 380,505
Nonconsolidated Investee
Investment income:
Total investment income	57,121		120,290
Expenses:
Interest expense	18,762		32,957
Other expenses	1,404		2,616
Total expenses	20,166		35,573
Net investment income before excise tax	36,955		84,717
Tax Expense	0		0
Net investment income after excise tax	36,955		84,717
Net realized and change in unrealized gain (loss) on investments
Net change in unrealized gain (loss) on investments	(7,970)		(58,771)
Net realized gains on investments	(2,259)		(2,750)
Net realized and unrealized gain (loss)	(10,229)		(61,521)
Net increase (decrease) in net assets resulting from operations	26,726		23,196
Nonconsolidated Investee | Non-controlled/non-affiliated investments
Investment income:
Interest income	56,971		119,898
Other income	$ 150		$ 392