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v3.24.0.1

Financial Highlights (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Per share data |  |  |  |  |
Net asset value at beginning of period (in dollars per share) | $ 10.53 | $ 11.22 | $ 11.26 | $ 10.55 | $ 9.90
Total from investment operations (in dollars per share) | 2.34 | 0.81 | 1.50 | 2.02 | 1.71
Net increase (decrease) in net assets from capital share transactions (in dollars per share) | 0.44 | 0.34 | (0.08) | 0.01 | 0.20
Distributions of net investment income (in dollars per share) | (1.93) | (1.63) | (1.06) | (1.03) | (1.15)
Distributions of capital gains (in dollars per share) | 0 | (0.36) | (0.49) | (0.36) | (0.18)
Stock-based compensation expense included in net investment income and other movements (in dollars per share) | 0.05 | 0.15 | 0.09 | 0.07 | 0.07
Net asset value at ending of period (in dollars per share) | 11.43 | 10.53 | 11.22 | 11.26 | 10.55
Ratios and supplemental data: |  |  |  |  |
Per share market value at end of period (in dollars per share) | $ 16.67 | $ 13.22 | $ 16.59 | $ 14.42 | $ 14.02
Total return | 42.00% | (10.14%) | 25.62% | 14.31% | 39.36%
Shares outstanding at end of period (in shares) | 157,758 | 133,045 | 116,619 | 114,726 | 107,364
Basic weighted average common shares outstanding (in shares) | 144,091 | 125,189 | 114,742 | 111,985 | 101,132
Net assets at end of period | $ 1,802,706 | $ 1,401,459 | $ 1,308,547 | $ 1,291,704 | $ 1,133,049
Ratio of total expense to average net assets | 9.92% | 9.92% | 9.86% | 11.30% | 11.95%
Ratio of net investment income before investment gains and losses to average net assets | 19.26% | 13.96% | 11.28% | 13.64% | 13.74%
Portfolio turnover rate | 31.95% | 19.29% | 51.58% | 32.38% | 31.30%
Weighted average debt outstanding | $ 1,607,278 | $ 1,468,335 | $ 1,248,177 | $ 1,309,903 | $ 1,177,379
Weighted average debt per common share (in dollars per share) | $ 11.15 | $ 11.73 | $ 10.88 | $ 11.70 | $ 11.64
Net investment income |  |  |  |  |
Per share data |  |  |  |  |
Net gain (loss) (in dollars per share) | 2.11 | 1.50 | 1.29 | 1.39 | 1.41
Net realized gain (loss) |  |  |  |  |
Per share data |  |  |  |  |
Net gain (loss) (in dollars per share) | 0.06 | (0.01) | 0.18 | (0.50) | 0.16
Net unrealized appreciation (depreciation) |  |  |  |  |
Per share data |  |  |  |  |
Net gain (loss) (in dollars per share) | $ 0.17 | $ (0.68) | $ 0.03 | $ 1.13 | $ 0.14

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