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Nature of business and organization - Organization and business overview (Details) - USD ($) | Dec. 07, 2023 | Jun. 30, 2025
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Sonic Auspice DC LLC |  |
Nature of business and organization |  |
Equity interest (in percent) |  | 55.00%
Sonic Auspice DC LLC |  |
Nature of business and organization |  |
Ownership interest to be acquired (as a percent) | 55.00% |
Sonic Auspice DC LLC | Sonic Auspice DC LLC |  |
Nature of business and organization |  |
Total consideration | $ 750 |

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