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Income Taxes - Schedule of Undistributed Ordinary Income or Accumulated Realized Gains (Losses) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Distributable Earnings | Net investment income |  |  |
Tax reclassification of stockholders' equity in accordance with generally accepted accounting principles | $ (18,396) | $ (8,784) | $ 19,486
Distributable Earnings | Realized Gain Loss |  |  |
Tax reclassification of stockholders' equity in accordance with generally accepted accounting principles | 39,317 | (834) | 69,066
Capital in Excess of Par Value |  |  |
Tax reclassification of stockholders' equity in accordance with generally accepted accounting principles | $ (20,921) | $ 9,618 | $ (88,552)

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