Members Capital - Summary of Company Unit Activity (Details) - shares |
Jun. 30, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
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| Statement of Stockholders' Equity [Abstract] | ||||||||
| Units at beginning of period | 18,034,649 | 18,034,649 | [1] | 18,034,649 | ||||
| Units issued and committed at end of period | 18,034,649 | [1] | 18,034,649 | 18,034,649 | [1] | |||
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