Income Taxes - Schedule of Aggregate Unrealized Appreciation of Company investment Federal Income Tax (Details) - USD ($) $ in Millions |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Income Tax Disclosure [Abstract] | |||
| Tax basis of investments, gross, unrealized appreciation | $ 118.3 | $ 72.2 | $ 121.0 |
| Tax basis of investments, gross, unrealized depreciation | 115.9 | 112.0 | 75.7 |
| Tax basis of investments, unrealized appreciation (depreciation), net | 2.4 | (39.8) | 45.3 |
| Tax basis of investments, cost for income tax purposes | $ 3,200.0 | $ 3,000.0 | $ 2,400.0 |
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- References No definition available.
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- Definition Amount of cost of investment for federal income tax purpose. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cumulative increase in investment from unrealized gain when value exceeds cost for federal income tax purpose. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cumulative decrease in investment from unrealized loss when cost for federal income tax purpose exceeds value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cumulative increase (decrease) in investment from unrealized gain (loss) when value exceeds (is less than) cost for federal income tax purpose. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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