Debt - Revolving Credit Facility (Details) - USD ($)	Oct. 13, 2023	Feb. 28, 2023	Feb. 18, 2022	Sep. 30, 2024	Feb. 29, 2024	Feb. 28, 2024	Dec. 31, 2023	Jan. 04, 2023	Jan. 03, 2023	Dec. 16, 2022	Dec. 15, 2022	Jan. 25, 2022
Subscription Credit Facility | Line of Credit
Debt Instrument [Line Items]
Aggregate Principal Committed				$ 800,000,000			$ 800,000,000			$ 800,000,000.0	$ 700,000,000.0
Line of credit facility, including the accordion feature			$ 1,500,000,000
Basis spread on variable rate			0.75%
Fee on unused portion of credit facility			0.25%
Credit facility maturity term			2 years
Line of credit facility, termination of commitment period			45 days
Line of credit facility, listing of company's common stock on national securities exchange period			45 days
Line of credit facility, extended stated maturity date			364 days
Subscription Credit Facility | Line of Credit | SOFR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			1.00%
Credit spread adjustment percentage			0.10%
Subscription Credit Facility | Line of Credit | SOFR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			1.75%
Credit spread adjustment percentage			0.25%
Subscription Credit Facility | Line of Credit | Adjusted Term SOFR
Debt Instrument [Line Items]
Basis spread on variable rate			1.75%
Subscription Credit Facility | Line of Credit | Federal Funds
Debt Instrument [Line Items]
Basis spread on variable rate			0.50%
Subscription Credit Facility | Line of Credit | Adjusted Eurocurrency Rate
Debt Instrument [Line Items]
Basis spread on variable rate			1.75%
Subscription Credit Facility | Line of Credit | Adjusted SONIA Rate
Debt Instrument [Line Items]
Basis spread on variable rate			1.75%
Credit spread adjustment percentage			0.0326%
Subscription Credit Facility | Line of Credit | Bridge Loan
Debt Instrument [Line Items]
Aggregate Principal Committed								$ 50,000,000.0	$ 100,000,000.0
Subscription Credit Facility | Line of Credit | Letter of Credit | Minimum
Debt Instrument [Line Items]
Maximum commitment percentage								0.00%
Subscription Credit Facility | Line of Credit | Letter of Credit | Maximum
Debt Instrument [Line Items]
Maximum commitment percentage								20.00%
Revolving Credit Facility | Line of Credit | Bridge Loan
Debt Instrument [Line Items]
Aggregate Principal Committed					$ 200,000,000
Revolving Credit Facility | Line of Credit | Secured Debt
Debt Instrument [Line Items]
Aggregate Principal Committed					1,080,000,000.00
Aggregate Principal Committed					75,000,000
Revolving Credit Facility | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Aggregate Principal Committed				$ 1,075,000,000	950,000,000	$ 850,000,000	$ 825,000,000
Credit adjustment spread	0.10%
Aggregate Principal Committed					75,000,000	50,000,000
Line of credit facility, accordion feature higher borrowing capacity option					1,250,000,000
Asset coverage ratio, minimum	1.50
Revolving Credit Facility | Line of Credit | Revolving Credit Facility | CORRA | Variable Rate Component, One
Debt Instrument [Line Items]
Credit adjustment spread	0.29547%
Revolving Credit Facility | Line of Credit | Revolving Credit Facility | CORRA | Variable Rate Component, Two
Debt Instrument [Line Items]
Credit adjustment spread	0.32138%
Revolving Credit Facility | Line of Credit | First Amendment
Debt Instrument [Line Items]
Aggregate Principal Committed					$ 1,000,000,000	$ 950,000,000
Other Currency Borrowings | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Fee on unused portion of credit facility	0.375%
Other Currency Borrowings | Line of Credit | Revolving Credit Facility | SOFR
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Other Currency Borrowings | Line of Credit | Revolving Credit Facility | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Promissory Note | Promissory Note
Debt Instrument [Line Items]
Aggregate Principal Committed												$ 250,000,000.0
Debt, written notice for contract termination, term		120 days