Investments at Fair Value - Summary of Geographic Composition of Investments at Fair Value (Details)	Sep. 30, 2022
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	100.00%
United States - Northeast
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	93.30%
Norway
Schedule Of Available For Sale Securities [Line Items]
Investment fair value percentage	6.70%