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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

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