v3.26.1
Share - Based Compensation - Summary of Stock Option and SARs Activity under 2023 Plan (Details)
 6 Months Ended
Jun. 30, 2026
shares
SFr / shares
Jun. 30, 2025
shares
SFr / shares
Dec. 31, 2025
Dec. 31, 2024
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]        
Number of Options, Outstanding beginning balance | shares 5,163,946 4,687,054    
Number of Options, Granted | shares 1,116,899 1,035,131    
Number of Options, Forfeited | shares [1] (91,746) (297,978)    
Number of Options, Exercised | shares [1] (72,750) (335,581)    
Number of Options, Outstanding ending balance | shares 6,116,349 5,088,626    
Weighted Average Exercise Price, Outstanding beginning balance | SFr / shares SFr 8.32 SFr 6.82    
Weighted Average Exercise Price, Granted | SFr / shares 21.11 16.11    
Weighted Average Exercise Price, Forfeited | SFr / shares [1] 13.18 8.31    
Weighted Average Exercise Price, Exercised | SFr / shares [1] 8.05 5.02    
Weighted Average Exercise Price, Outstanding ending balance | SFr / shares SFr 10.22 SFr 8.48    
Granted shares expiration period 2036 2035    
Top of Range        
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]        
Outstanding shares expiration period 2036 2035 2035 2034
Forfeited shares expiration period [1] 2036 2034    
Exercised shares expiration period [1] 2034 2034    
Bottom of Range        
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]        
Outstanding shares expiration period 2028 2028 2028 2028
Forfeited shares expiration period [1] 2033 2033    
Exercised shares expiration period [1] 2028 2033    
[1]

(1) Forfeited amount includes earnout options forfeited during the six month periods ended June 30, 2026 and 2025. No SARs had been exercised or forfeited during the six months ended June 30, 2026 and 2025.