v3.25.4
Provisions (Details) - CHF (SFr)
SFr in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of Provisions [Line Items]      
Beginning balance SFr 36.6 SFr 17.1  
Additions 13.6 29.3  
Release (7.0) (1.6)  
Utilization (8.2) (8.2)  
Unwinding of discount 0.1 0.1  
Exchange differences (1.4) 0.0  
Ending balance 33.7 36.6  
thereof current 13.0 21.7 SFr 7.1
thereof non-current 20.7 14.9 10.0
Social charges      
Disclosure of Provisions [Line Items]      
Beginning balance 20.3 6.8  
Additions 5.1 22.9  
Release (6.1) (1.0)  
Utilization (8.2) (8.2)  
Unwinding of discount 0.0 0.0  
Exchange differences (0.4) (0.1)  
Ending balance 10.7 20.3  
thereof current 10.7 20.3 6.3
thereof non-current 0.0 0.0 0.5
Long-service leave      
Disclosure of Provisions [Line Items]      
Beginning balance 8.0 5.8  
Additions 4.7 2.6  
Release (0.8) (0.5)  
Utilization 0.0 0.0  
Unwinding of discount 0.0 0.0  
Exchange differences (0.4) 0.1  
Ending balance 11.5 8.0  
thereof current 1.8 1.0 0.7
thereof non-current 9.7 7.0 5.1
Other      
Disclosure of Provisions [Line Items]      
Beginning balance 8.4 4.5  
Additions 3.8 3.8  
Release (0.1) 0.0  
Utilization 0.0 0.0  
Unwinding of discount 0.1 0.1  
Exchange differences (0.6) 0.1  
Ending balance 11.6 8.4  
thereof current 0.6 0.4 0.1
thereof non-current SFr 11.0 SFr 8.0 SFr 4.3