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CONSOLIDATED SCHEDULE OF INVESTMENTS (Parenthetical) $ in Thousands | Jun. 30, 2024 USD ($) Firm | Dec. 31, 2023 USD ($) Firm
--- | --- | ---
Investment Holding [Line Items] |  |
Investment, basis spread, variable rate | 8.50% | 8.50%
Aggregate Gross Unrealized Appreciation | $ 119,000 | $ 118,300
Aggregate Gross Unrealized Depreciation | 158,600 | 115,900
Net Unrealized Appreciation (Depreciation) over cost for U.S. federal income tax purposes | (39,600) | 2,400
Aggregate cost of securities for U.S. federal income tax purposes (in billions) | 3,600,000 | 3,200,000
Investment cost | 3,609,118 | 3,247,033
Investments, at fair value: | $ 3,568,539 | $ 3,248,046
1-month SOFR |  |
Investment Holding [Line Items] |  |
Interest rate | 5.34% | 5.34%
3-month SOFR |  |
Investment Holding [Line Items] |  |
Interest rate | 5.32% | 5.36%
6-month SOFR |  |
Investment Holding [Line Items] |  |
Interest rate | 5.25% | 5.35%
Common Stock | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Investment Holding [Line Items] |  |
Number of publicly traded companies | Firm | 33 | 36
Warrants | Significant Other Observable Inputs (Level 2) |  |
Investment Holding [Line Items] |  |
Number of publicly traded companies | Firm | 23 | 24
Black Crow AI, Inc. affiliates | Promissory Note |  |
Investment Holding [Line Items] |  |
Principal amount | $ 2,400 | $ 2,400
Phathom Pharmaceuticals, Inc. | Royalty Contract |  |
Investment Holding [Line Items] |  |
Investment cost | 12,000 | 12,000
Investments, at fair value: | $ 10,500 | $ 9,400

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