CONSOLIDATED FINANCIAL HIGHLIGHTS (Details) - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Investment Company, Financial Highlights [Roll Forward] | |||||||||||||||
| Net asset value, beginning of period (in dollars per unit) | [1] | $ 18.96 | $ 19.11 | $ 18.59 | $ 20 | ||||||||||
| Net investment income (loss) (in dollars per unit) | [1] | 1.72 | 1.78 | 1.77 | 1.26 | ||||||||||
| Net unrealized and realized gain (loss) (in dollars per unit) | [1],[2] | (0.44) | (0.12) | 0.52 | (1.56) | ||||||||||
| Net increase (decrease) in net assets resulting from operations (in dollars per unit) | [1] | 1.28 | 1.66 | 2.29 | (0.3) | ||||||||||
| Distributions declared (in dollars per unit) | [1] | (1.67) | (1.81) | (1.77) | (1.11) | ||||||||||
| Total increase (decrease) in net assets (in dollars per unit) | [1] | (0.39) | (0.15) | 0.52 | (1.41) | ||||||||||
| Net asset value, end of period (in dollars per unit) | [1] | $ 18.57 | $ 18.96 | $ 19.11 | $ 18.59 | ||||||||||
| Units outstanding, end of period (in units) | 182,049,066 | 172,510,464 | 120,613,447 | 68,104,617 | |||||||||||
| Weighted average units outstanding - basic (in units) | 186,941,307 | 156,537,151 | 91,230,657 | 53,379,085 | |||||||||||
| Denominator - weighted average Units outstanding - diluted (in units) | 186,941,307 | 156,537,151 | 91,230,657 | 53,379,085 | |||||||||||
| Total return based on net asset value | [3] | 7.03% | 9.05% | 12.81% | (1.50%) | ||||||||||
| Ratio/Supplemental Data: | |||||||||||||||
| Members' Capital, end of period | $ 3,379,828 | $ 3,271,186 | $ 2,304,430 | $ 1,266,213 | $ (456) | ||||||||||
| Ratio of expenses before waivers to average Members' Capital | [4] | 10.70% | 9.54% | 8.16% | 5.41% | ||||||||||
| Ratio of net expenses to average Members Capital | [4] | 9.55% | 9.16% | 8.13% | 3.91% | ||||||||||
| Ratio of net investment income to average Members' Capital | [4] | 9.11% | 9.31% | 9.34% | 7.25% | ||||||||||
| Asset coverage ratio | [5] | 202.00% | 213.00% | 351.00% | 274.00% | ||||||||||
| Portfolio turnover rate | 20.54% | 19.27% | 13.96% | 4.56% | |||||||||||
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