Financial Highlights - Supplemental Ratios (Details) |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Investment Company, Financial Highlights [Abstract] | ||||||||||
| Ratio of total investment income to average net assets | 21.07% | 30.41% | 29.98% | 24.02% | 22.22% | 27.00% | 26.73% | 21.69% | 19.26% | 21.62% |
| Ratio of interest and other debt financing expenses to average net assets | 8.83% | 11.01% | 10.65% | 7.25% | 6.63% | 7.89% | 7.95% | 4.56% | 3.13% | 3.26% |
| Ratio of total expenses (excluding incentive fees) to average net assets | 14.73% | 16.85% | 16.43% | 13.09% | 12.16% | 13.86% | 13.61% | 9.19% | 7.43% | 8.17% |
| Ratio of incentive fees to average net assets | 0.00% | 1.23% | 2.71% | 1.53% | 0.91% | 0.00% | 1.74% | 0.65% | 2.03% | 2.64% |
| Ratio of waived incentive fees to average net assets | 0.00% | 0.00% | 0.00% | 0.22% | 0.61% | 0.31% | 0.46% | 0.00% | 0.12% | 0.13% |