Net Assets - Cash Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Class I
Class of Stock [Line Items]
Declared distribution (in dollars per share)	$ 2.6400	$ 2.5700	$ 2.2260
Distribution Amount	$ 2,358,733	$ 1,729,499	$ 1,239,553
Class I | Net Investment Income
Class of Stock [Line Items]
Declared distribution (in dollars per share)	$ 2.6400	$ 2.5700	$ 2.2260
Distribution Amount	$ 2,358,733	$ 1,729,499	$ 1,239,553
Class I | Net Realized Gains
Class of Stock [Line Items]
Declared distribution (in dollars per share)	$ 0	$ 0	$ 0
Distribution Amount	$ 0	$ 0	$ 0
Class S
Class of Stock [Line Items]
Declared distribution (in dollars per share)	$ 2.4232	$ 2.3582	$ 2.0113
Distribution Amount	$ 1,074,768	$ 767,401	$ 478,548
Class S | Net Investment Income
Class of Stock [Line Items]
Declared distribution (in dollars per share)	$ 2.4232	$ 2.3582	$ 2.0113
Distribution Amount	$ 1,074,768	$ 767,401	$ 478,548
Class S | Net Realized Gains
Class of Stock [Line Items]
Declared distribution (in dollars per share)	$ 0	$ 0	$ 0
Distribution Amount	$ 0	$ 0	$ 0
Class D
Class of Stock [Line Items]
Declared distribution (in dollars per share)	$ 2.5764	$ 2.5075	$ 2.1628
Distribution Amount	$ 50,705	$ 44,882	$ 80,303
Class D | Net Investment Income
Class of Stock [Line Items]
Declared distribution (in dollars per share)	$ 2.5764	$ 2.5075	$ 2.1628
Distribution Amount	$ 50,705	$ 44,882	$ 80,303
Class D | Net Realized Gains
Class of Stock [Line Items]
Declared distribution (in dollars per share)	$ 0	$ 0	$ 0
Distribution Amount	$ 0	$ 0	$ 0