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SUBSEQUENT EVENTS - Narrative (Details) - USD ($) $ in Thousands | 1 Months Ended |  |
--- | --- | --- | ---
Apr. 30, 2025 | Mar. 31, 2025 | Sep. 30, 2024 | [1]
Subsequent Event [Line Items] |  |  |
Cost |  | $ 789,193 | $ 771,011
SpaceCo Holdings, LLC | Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Net proceeds from the sale of investments | $ 42,200 |  |
Eegee Acquisition Corporation | Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Cost | $ 20,500 |  |
[1] | Cumulative gross unrealized depreciation for federal income tax purposes is $66.1 million; cumulative gross unrealized appreciation for federal income tax purposes is $85.8 million. Cumulative net unrealized appreciation is $19.7 million, based on a tax cost of $776.5 million.

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