Investments - Summary of Geographic Composition of Investments at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Summary Of Investment Holdings [Line Items]
Fair Value	$ 1,582,075	$ 1,262,956
Percentage of Fair Value	100.00%	100.00%
United States
Summary Of Investment Holdings [Line Items]
Fair Value	$ 1,410,306	$ 1,111,350
Percentage of Fair Value	89.00%	88.10%
UNITED KINGDOM
Summary Of Investment Holdings [Line Items]
Fair Value	$ 70,797	$ 58,591
Percentage of Fair Value	4.50%	4.60%
Australia
Summary Of Investment Holdings [Line Items]
Fair Value	$ 20,079	$ 19,490
Percentage of Fair Value	1.30%	1.50%
New Zealand
Summary Of Investment Holdings [Line Items]
Fair Value	$ 19,081
Percentage of Fair Value	1.20%
Netherlands
Summary Of Investment Holdings [Line Items]
Fair Value	$ 18,340	$ 15,352
Percentage of Fair Value	1.20%	1.20%
Belgium
Summary Of Investment Holdings [Line Items]
Fair Value	$ 14,759	$ 14,166
Percentage of Fair Value	0.90%	1.10%
SWEDEN
Summary Of Investment Holdings [Line Items]
Fair Value	$ 14,152	$ 12,117
Percentage of Fair Value	0.90%	1.00%
CANADA
Summary Of Investment Holdings [Line Items]
Fair Value	$ 10,378	$ 31,890
Percentage of Fair Value	0.70%	2.50%
France
Summary Of Investment Holdings [Line Items]
Fair Value	$ 4,183
Percentage of Fair Value	0.30%