Investments - Schedule of Investment Portfolio at Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Summary of Investment Holdings [Line Items]
Amortized Cost	$ 3,459,687	$ 2,208,817
Fair Value	$ 3,456,579	$ 2,197,053
% of Total Investments at Fair Value	100.00%	100.00%
First Lien Debt
Summary of Investment Holdings [Line Items]
Amortized Cost	$ 3,214,684	$ 1,942,665
Fair Value	$ 3,215,211	$ 1,942,843
% of Total Investments at Fair Value	93.02%	88.43%
Second Lien Debt
Summary of Investment Holdings [Line Items]
Amortized Cost	$ 186,889	$ 234,306
Fair Value	$ 183,465	$ 226,318
% of Total Investments at Fair Value	5.31%	10.30%
Equity and Other Investments
Summary of Investment Holdings [Line Items]
Amortized Cost	$ 58,114	$ 31,846
Fair Value	$ 57,903	$ 27,892
% of Total Investments at Fair Value	1.67%	1.27%