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v3.25.1

Investments - Selected Statement of Operations Information for SLP III and SLP IV (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Investment Company, Nonconsolidated Subsidiary [Line Items] |  |
Total investment income | $ 85,663 | $ 90,556
Interest and other financing expenses | 31,374 | 31,016
Total expenses | 52,863 | 53,902
Net investment income | 34,622 | 37,555
Net realized gains (losses) on investments | 37,825 | (11,827)
Net change in unrealized (depreciation) appreciation of investments | (49,077) | 3,017
SLP III |  |
Investment Company, Nonconsolidated Subsidiary [Line Items] |  |
Interest income | 15,131 | 16,789
Other income | 76 | 27
Total investment income | 15,207 | 16,816
Interest and other financing expenses | 8,180 | 8,790
Other expenses | 306 | 241
Total expenses | 8,486 | 9,031
Net investment income | 6,721 | 7,785
Net realized gains (losses) on investments | 321 | (5,669)
Net change in unrealized (depreciation) appreciation of investments | (8,147) | 10,723
Net (decrease) increase in members' capital | (1,105) | 12,839
SLP IV |  |
Investment Company, Nonconsolidated Subsidiary [Line Items] |  |
Interest income | 10,077 | 11,962
Other income | 30 | 21
Total investment income | 10,107 | 11,983
Interest and other financing expenses | 5,132 | 6,100
Other expenses | 222 | 224
Total expenses | 5,354 | 6,324
Net investment income | 4,753 | 5,659
Net realized gains (losses) on investments | (229) | (4,698)
Net change in unrealized (depreciation) appreciation of investments | (3,763) | 6,928
Net (decrease) increase in members' capital | $ 761 | $ 7,889

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