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Income Taxes (Tables) | 3 Months Ended
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Mar. 31, 2024
Income Tax Disclosure [Abstract] |
Schedule of Taxable Income And Taxable Net Realized Gains (Losses) | Taxable income and taxable net realized gains (losses) for the three months ended March 31, 2024 and 2023 appears as follows:
(in millions, except share data) |  | Three Months Ended March 31, |  |
Description |  | 2024 | 2023 |  |  |
Taxable income |  | $ | 78.3 |  | $ | 64.1 |  |  |  |
Taxable income per share |  | $ | 0.50 |  | $ | 0.47 |  |  |  |
Taxable net realized gains (losses) |  | $ | 5.9 |  | $ | 7.2 |  |  |  |
Taxable net realized gains (losses) per share |  | $ | 0.04 |  | $ | 0.05 |  |  |  |
Weighted average shares outstanding |  | 157.4 |  | 135.3 |  |  |  |
Schedule of Aggregate Unrealized Appreciation And Depreciation of Investment Over Federal Income Tax | The aggregate gross unrealized appreciation of the Company’s investments over cost for U.S. federal income tax purposes appears as follows:
(in millions) |  |  |
| March 31, 2024 |  | December 31, 2023
Aggregate Gross Unrealized Appreciation | 127.7 |  |  | 118.3 |
Aggregate Gross Unrealized Depreciation | 129.5 |  |  | 115.9 |
Net Unrealized Appreciation (Depreciation) over cost for U.S. federal income tax purposes | (1.8) |  |  | 2.4 |
Aggregate cost of securities for U.S. federal income tax purposes (in billions) | 3.6 |  |  | 3.2 |

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