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INVESTMENTS - Narrative (Details) $ in Thousands | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
May 31, 2024 USD ($) | Jun. 30, 2024 USD ($) portfolioCompany state industry | Jun. 30, 2023 USD ($) | Mar. 31, 2024 USD ($)
Summary of Investment Holdings [Line Items] |  |  |  |  |
Principal repayments of investments |  | $ 3,000 | $ 0 |  |
Number of investment portfolio company | portfolioCompany |  | 23 |  |  |
Number of states which have invested in the company location | state |  | 18 |  |  |
Number of industries that have made investments | industry |  | 15 |  |  |
Fair Value |  | $ 899,138 |  | $ 920,504 | [1]
Uncollectible receivables allowance, minimum required day for uncollectible adjustment |  | 90 days |  |  |
Gross receivables from portfolio companies |  | $ 2,000 |  | 2,200 |
Allowance for uncollectible receivables |  | 1,500 |  | $ 1,400 |
Five Largest Portfolio Investments | Investment Portfolio Benchmark | Customer Concentration Risk |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Fair Value |  | $ 384,100 |  |  |
Concentration risk, percentage |  | 42.70% |  |  |
Funko Acquisition Holdings, LLC |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |
Principal repayments of investments | $ 21 |  |  |  |
Realized gain on preferred equity | $ 2 |  |  |  |
[1] | Cumulative gross unrealized appreciation for federal income tax purposes is $180.5 million; cumulative gross unrealized depreciation for federal income tax purposes is $115.8 million. Cumulative net unrealized appreciation is $64.7 million, based on a tax cost of $855.8 million.

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