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Investments - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) Member	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Investment Holdings [Line Items]
CLO fund securities percentage of total assets	2.30%		2.30%		3.30%
Non qualified assets percentage of total assets	17.20%		17.20%		17.60%
Joint ventures percentage of total assets	11.20%		11.20%		9.50%
Fair Value	$ 510,100		$ 510,100		$ 576,478
Unfunded commitment to investee	25,721		25,721		34,959
Level II
Investment Holdings [Line Items]
Fair Value	57,600		$ 57,600		65,000
Non Qualifying Assets
Investment Holdings [Line Items]
Investment portfolio percentage			30.00%
Joint venture
Investment Holdings [Line Items]
Investment income from investments in joint ventures	2,300	$ 2,100	$ 4,800	$ 4,200
Aggregate fair value of investments in joint venture	$ 62,500		$ 62,500		59,000
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
Series A-Great Lakes Funding II LLC
Investment Holdings [Line Items]
Percentage of voting interest	50.00%		50.00%
Fair Value	$ 46,000		$ 46,000		40,300
Increase in aggregate commitment to investee			50,000
Unfunded commitment to investee	$ 2,000		$ 2,000		$ 8,000

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Value of the investment at close of period. For schedules of investments that are categorized, the value would be aggregated by category. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities.

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