v3.26.1
Restructuring expense (Details)
SFr in Thousands
3 Months Ended 6 Months Ended
Jun. 10, 2025
position
Jun. 30, 2026
CHF (SFr)
Jun. 30, 2025
CHF (SFr)
Jun. 30, 2026
CHF (SFr)
Jun. 30, 2025
CHF (SFr)
Restructuring Expense [Abstract]          
Number of positions eliminated | position 34        
Expense of restructuring activities | SFr   SFr 0 SFr 2,617 SFr 0 SFr 2,617