v3.26.1
Finance Income (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disclosure of detailed information about financial instruments [line items]        
Net foreign exchange gain arising from financing - unrealized $ 7.8 $ 20.7 $ 110.6 $ 28.6
Interest income - bank deposits 13.8 9.1 22.6 16.5
Other interest income 2.8   7.9  
Fair value gain on embedded options 17.6 1.4 11.4 4.3
Change in fair value of foreign exchange swaps       0.2
Fair value gain on non-deliverable forwards 6.5   6.5  
Total Finance income 48.5 $ 31.2 [1] $ 159.0 $ 49.6 [1]
Vendor loan notes issued on disposal of subsidiaries | Rwanda, Rwanda Francs        
Disclosure of detailed information about financial instruments [line items]        
Repayable term     2 years  
Interest rate     12.00%  
Notional amount 70.0   $ 70.0  
Vendor loan notes issued on disposal of subsidiaries | United States of America, Dollars        
Disclosure of detailed information about financial instruments [line items]        
Repayable term     3 years  
Notional amount $ 24.5   $ 24.5  
[1] The results for the three and six months ended June 30, 2025 have been re-presented to reflect that the results of the Latam segment is now reported as a discontinued operation. See note 21.1 for more information