Investments at Fair Value - Summary of Industry Composition of Investments at Fair Value (Details)	Mar. 31, 2023	Dec. 31, 2022
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	100.00%	100.00%
Business Services
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	0.50%	0.80%
Chemicals
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	1.60%	2.40%
Communications
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	3.00%
Financial Services
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	21.30%	32.40%
Healthcare
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	7.60%
Human Resource Support Services
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	11.60%	18.00%
Insurance
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	4.50%
Internet Services
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	10.50%	0.70%
Manufacturing
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	10.50%	16.30%
Oil, Gas and Consumable Fuels
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	7.60%
Retail and Consumer Products
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	21.30%	29.40%