Intangible Assets - Additional Information (Detail) - GBP (£) £ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Dec. 31, 2024 |
|
| Disclosure of detailed information about intangible assets [line items] | ||
| Intangible assets, carrying value | £ 2,199 | £ 2,199 |
| Patents [member] | ||
| Disclosure of detailed information about intangible assets [line items] | ||
| Intangible assets, carrying value | 2,200 | £ 2,200 |
| Intangible assets, acquired | £ 100 |