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Financial Highlights - Schedule of Financial Highlights of the Company (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Mar. 31, 2026 | Dec. 31, 2025 | Mar. 31, 2025 | Dec. 31, 2024
Per Share Data: |  |  |  |  |  |  |  |  |  |  |  |  |
NAV, beginning of period | [1] |  |  |  |  | $ 12.64 |  | $ 13.41 |  |  |  |  |
Net investment income |  | $ 0.38 |  | $ 0.38 |  | 0.6 | [1] | 0.8 | [1] |  |  |  |
Net realized and unrealized gains (losses) | [1],[2] |  |  |  |  | (0.51) |  | (0.19) |  |  |  |  |
Net increase (decrease) in net assets from operations | [1] |  |  |  |  | 0.09 |  | 0.61 |  |  |  |  |
Repurchases of common stock, including commissions and direct acquisition costs | [1] |  |  |  |  | 0 |  | 0.01 |  |  |  |  |
Distributions to common stockholders | [1] |  |  |  |  | (0.67) |  | (1.01) |  |  |  |  |
Total increase (decrease) in net assets | [1] |  |  |  |  | (0.58) |  | (0.39) |  |  |  |  |
NAV, end of period | [1] | 12.06 |  | 13.02 |  | 12.06 |  | 13.02 |  |  |  |  |
Market price, end of period | [1] | $ 9.48 |  | $ 11.25 |  | $ 9.48 |  | $ 11.25 |  |  |  |  |
Shares outstanding, end of period |  | 112,569,067 |  | 116,250,039 |  | 112,569,067 |  | 116,250,039 |  |  |  |  |
Weighted average shares outstanding, basic |  | 112,569,067 |  | 117,204,952 |  | 112,569,067 |  | 117,250,832 |  |  |  |  |
Weighted average shares outstanding, diluted |  | 112,569,067 |  | 117,204,952 |  | 112,569,067 |  | 117,250,832 |  |  |  |  |
Total return based on NAV | [3] |  |  |  |  | 2.37% |  | 6.04% |  |  |  |  |
Total return based on market value | [4] |  |  |  |  | 9.61% |  | 1.55% |  |  |  |  |
Supplemental Data/Ratio: |  |  |  |  |  |  |  |  |  |  |  |  |
Net assets, end of period |  | $ 1,357,650 | [5] | $ 1,513,389 | [5] | $ 1,357,650 | [5] | $ 1,513,389 | [5] | $ 1,369,989 | $ 1,423,019 | $ 1,547,950 | $ 1,572,700
Ratio of net expenses (without incentive fees and interest and other debt expenses) to average net assets | [5] |  |  |  |  | 3.35% |  | 3.10% |  |  |  |  |
Ratio of interest and other debt expenses to average net assets | [5] |  |  |  |  | 8.79% |  | 7.13% |  |  |  |  |
Ratio of net incentive fees to average net assets | [5] |  |  |  |  | 1.82% |  | 2.00% |  |  |  |  |
Ratio of total expenses to average net assets | [5] |  |  |  |  | 13.96% |  | 12.23% |  |  |  |  |
Ratio of net investment income to average net assets | [5] |  |  |  |  | 9.73% |  | 12.26% |  |  |  |  |
Portfolio turnover | [5] |  |  |  |  | 8.00% |  | 11.00% |  |  |  |  |
[1] | The per share data was derived by using the weighted average shares outstanding during the applicable period that the shares were outstanding, except for distributions recorded, which reflects the actual amount per share for the applicable period.
[2] | The amount shown may not correspond for the period as it includes the effect of the timing of the distribution, the issuance and the repurchase of common stock.
[3] | Calculated as the change in NAV per share during the respective periods, assuming dividends and distributions, if any, are reinvested in accordance with the Company’s DRIP.
[4] | Calculated as the change in market value per share during the respective periods, assuming dividends and distributions, if any, are reinvested in accordance with the Company’s DRIP.
[5] | Ratios are annualized, except for non-recurring fees that Goldman Sachs, GSAM or their affiliates have shared with the Company.

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