XML 103 R79.htm IDEA: XBRL DOCUMENT v3.23.1
Property, plant and equipment - Narrative (Details) - CHF (SFr)
SFr in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment SFr 77.2 SFr 34.4 SFr 17.0
Construction in progress      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment SFr 6.4 9.3  
Construction in progress | Minimum      
Disclosure of detailed information about property, plant and equipment [line items]      
Useful life measured as period of time, property, plant and equipment 5 years    
Construction in progress | Maximum      
Disclosure of detailed information about property, plant and equipment [line items]      
Useful life measured as period of time, property, plant and equipment 8 years    
Trade tools      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment SFr 5.3 3.8 3.8
Useful life measured as period of time, property, plant and equipment 3 years    
Production tools      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment SFr 7.5 6.3 4.3
Useful life measured as period of time, property, plant and equipment 2 years    
Other      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment SFr 19.7 SFr 5.3 SFr 3.0
Other | Minimum      
Disclosure of detailed information about property, plant and equipment [line items]      
Useful life measured as period of time, property, plant and equipment 3 years    
Other | Maximum      
Disclosure of detailed information about property, plant and equipment [line items]      
Useful life measured as period of time, property, plant and equipment 8 years