v3.26.1
Segment reporting - Summarized financial information (Details)
$ in Millions
3 Months Ended
Mar. 31, 2026
USD ($)
segment
Mar. 31, 2025
USD ($)
Disclosure of operating segments [line items]    
Number of operating segments | segment 3  
Revenues from external customers $ 415.4 $ 392.1 [1]
Elimination of intersegment amounts    
Disclosure of operating segments [line items]    
Revenues from external customers 0.0  
Nigeria    
Disclosure of operating segments [line items]    
Revenues from external customers 285.0 271.4
SSA    
Disclosure of operating segments [line items]    
Revenues from external customers $ 130.4 $ 120.7
[1] The results for the three months ended March 31, 2025 have been re-presented to reflect that the results of the Latam segment are now reported as a discontinued operation. See note 20.1 for more information.