v3.24.0.1
Financial liabilities - Reconciliation of Liabilities from Financing Activities (Details) - CHF (SFr)
SFr in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of reconciliation of liabilities arising from financing activities [line items]      
Liabilities arising from financing activities at beginning of period SFr 170.0 SFr 187.3  
thereof current 53.4 31.2 SFr 20.1
thereof non-current 190.3 138.8 167.2
Payments (33.1) (20.9)  
Interest expenses paid (6.4) (4.2)  
Additions 116.0 51.7  
Lease modification 1.7 (45.5)  
Accrued interest 6.4 4.2  
Disposals (0.3) (3.0)  
Exchange differences (10.6) 0.3  
Liabilities arising from financing activities at end of period 243.7 170.0  
Lease liabilities      
Disclosure of reconciliation of liabilities arising from financing activities [line items]      
Liabilities arising from financing activities at beginning of period 160.5 180.9  
thereof current 38.7 21.6 13.6
thereof non-current 190.3 138.8 167.2
Payments (25.4) (15.8)  
Interest expenses paid (6.4) (4.2)  
Additions 103.0 43.6  
Lease modification 1.7 (45.5)  
Accrued interest 6.4 4.2  
Disposals (0.3) (3.0)  
Exchange differences (10.6) 0.3  
Liabilities arising from financing activities at end of period 228.9 160.5  
Other      
Disclosure of reconciliation of liabilities arising from financing activities [line items]      
Liabilities arising from financing activities at beginning of period 9.5 6.5  
thereof current 14.8 9.5 6.5
thereof non-current 0.0 0.0 SFr 0.0
Payments (7.7) (5.1)  
Interest expenses paid 0.0 0.0  
Additions 13.0 8.2  
Lease modification 0.0 0.0  
Accrued interest 0.0 0.0  
Disposals 0.0 0.0  
Exchange differences 0.0 0.0  
Liabilities arising from financing activities at end of period SFr 14.8 SFr 9.5