Investments - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) Member	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Investment Holdings [Line Items]
Fair Value	$ 444,370		$ 444,370		$ 467,865
Unfunded commitment to investee	32,658		32,658		28,566
Level II
Investment Holdings [Line Items]
Fair Value	42,900		42,900		65,300
Joint venture
Investment Holdings [Line Items]
Investment income from investments in joint ventures	1,800	$ 2,300	3,500	$ 4,800
Aggregate fair value of investments in joint venture	$ 54,300		$ 54,300		59,300
F3C Joint Venture
Investment Holdings [Line Items]
F3C Joint venture ownership percentage	62.80%		62.80%
Number of board of directors \| Member			4
Directors selected by company \| Member			2
Directors selected by Freedom 3 Opportunities \| Member			2
Fair Value	$ 13,500		$ 13,500		14,300
Series A-Great Lakes Funding II LLC
Investment Holdings [Line Items]
Percentage of voting interest	50.00%		50.00%
Fair Value	$ 40,700		$ 40,700		45,000
Unfunded commitment to investee	$ 10,100		$ 10,100		$ 5,500