v3.25.0.1
Related party transactions - Transactions with Mudrick capital (Details)
$ / shares in Units, £ in Thousands
1 Months Ended
Jan. 24, 2025
USD ($)
D
$ / shares
shares
Dec. 31, 2024
GBP (£)
Dec. 23, 2024
USD ($)
$ / shares
shares
Dec. 23, 2023
USD ($)
$ / shares
shares
Jan. 25, 2025
GBP (£)
Dec. 20, 2024
USD ($)
Dec. 15, 2021
Convertible loan notes              
Disclosure of transactions between related parties [line items]              
Market value per share | $ / shares     $ 7.42        
Ordinary shares     47,343,585        
Convertible loan notes | Interest paid in-kind and semi-annually in arrears              
Disclosure of transactions between related parties [line items]              
Interest rate             9.00%
Convertible loan notes | First half of principal amount              
Disclosure of transactions between related parties [line items]              
Conversion price (Per share price) | $ / shares     $ 2.75        
Conversion rate     363.636        
Original Debt, Amount | $     $ 130,000,000        
Mudrick              
Disclosure of transactions between related parties [line items]              
Non-contingent capital commitments | $           $ 25,000,000  
Mudrick | Maximum              
Disclosure of transactions between related parties [line items]              
Capital commitments receivable | $           50,000,000  
Backstop capital commitments | $           $ 25,000,000  
Mudrick | Share transaction              
Disclosure of transactions between related parties [line items]              
Reimbursement of legal fee | £         £ 877    
Gross Proceeds | $ $ 25,000,000            
Issuance of units 4,166,666            
Number of shares per unit 1            
Mudrick | Tranche A Warrant | Share transaction              
Disclosure of transactions between related parties [line items]              
Number of warrant per unit 0.5            
Number of days volume weighted average calculated | D 10            
Minimum percentage of warrant exercise price 103.00%            
Warrant term (in years) 5 years            
Exercise price per share | $ / shares $ 6            
Mudrick | Tranche B Warrant | Share transaction              
Disclosure of transactions between related parties [line items]              
Number of warrant per unit 0.5            
Warrant term (in years) 5 years            
Exercise price per share | $ / shares $ 7.5            
Mudrick | Convertible loan notes              
Disclosure of transactions between related parties [line items]              
Conversion price (Per share price) | $ / shares       $ 2.75      
Original Debt, Amount | $       $ 130,000,000      
Market value per share | $ / shares       $ 7.42      
Ordinary shares       47,343,585      
Gain (Losses) Upon Conversion of Debt | £   £ (230,495)          
Mudrick | Convertible loan notes | Interest paid in cash              
Disclosure of transactions between related parties [line items]              
Interest rate     10.00%        
Mudrick | Convertible loan notes | Interest paid in-kind and semi-annually in arrears              
Disclosure of transactions between related parties [line items]              
Interest rate     12.00%        
Mudrick | Convertible loan notes | First half of principal amount              
Disclosure of transactions between related parties [line items]              
Conversion price (Per share price) | $ / shares     $ 2.75        
Conversion rate     363.636        
Convertible Senior Secured Notes Principal Amount | $     $ 1,000        
Mudrick | Convertible loan notes | Remaining half of principal amount              
Disclosure of transactions between related parties [line items]              
Conversion price (Per share price) | $ / shares     $ 3.5        
Conversion rate     285.714        
Convertible Senior Secured Notes Principal Amount | $     $ 1,000        
Underwritten public offering | Share transaction              
Disclosure of transactions between related parties [line items]              
Gross Proceeds | $ $ 90,000,000            
Issuance of units 15,000,000            
Number of shares per unit 1            
Underwritten public offering | Tranche A Warrant | Share transaction              
Disclosure of transactions between related parties [line items]              
Number of warrant per unit 0.5            
Underwritten public offering | Tranche B Warrant | Share transaction              
Disclosure of transactions between related parties [line items]              
Number of warrant per unit 0.5