Share Capital and Share Premium - Summary of Share Capital and Share Premium (Parenthetical) (Detail) - £ / shares |
Jun. 30, 2025 |
Apr. 23, 2025 |
Dec. 31, 2024 |
|---|---|---|---|
| Ordinary shares [member] | |||
| Disclosure of classes of share capital [line items] | |||
| Par value per share | £ 0.0004 | £ 0.04 | £ 0.04 |