XML 120 R108.htm IDEA: XBRL DOCUMENT v3.22.1
Derivative financial liabilities - Convertible Senior Secured Notes (Details)
£ in Thousands
 12 Months Ended
Dec. 31, 2021
GBP (£)
Disclosure of financial liabilities [line items]  
Balance at ending £ 112,799
Mudrick  
Disclosure of financial liabilities [line items]  
Balance at beginning 0
Issuance of Convertible Senior Secured Notes 141,981
Fair value movements (26,876)
Foreign exchange movements (2,306)
Balance at ending £ 112,799