v3.26.1
Financial risk management and impairment of financial assets - Credit risk and impairment (Details)
£ in Thousands, $ in Thousands
6 Months Ended
Jun. 30, 2026
GBP (£)
Jun. 30, 2026
USD ($)
Dec. 31, 2025
GBP (£)
Financial risk management and impairment of financial assets      
Restricted cash £ 331   £ 1,224
Trade receivables | Accumulated impairment      
Financial risk management and impairment of financial assets      
loss allowance 0   0
Credit risk      
Financial risk management and impairment of financial assets      
Restricted cash and cash equivalents 1,224   1,224
Maximum exposure to credit risk £ 326   £ 323
Currency risk | USD      
Financial risk management and impairment of financial assets      
Reasonably possible increase in risk assumption 2.00%    
Increase (decrease) in profit (loss) from reasonably possible increase in risk assumption £ 8,465    
Reasonably possible decrease in risk assumption 2.00%    
Increase (decrease) in other comprehensive income (loss) from reasonably possible increase in risk assumption £ (6,950)    
Balances with banks | $   $ 30,928