v3.24.0.1
Right-of-use assets (Tables)
 12 Months Ended
Dec. 31, 2023
Disclosure of quantitative information about right-of-use assets [abstract]  
Schedule of Right-of-use assets
(CHF in millions)StorageStores & showroomsOfficesCarsTotal
Cost at January 1, 202277.9 14.8 102.9 4.5 200.2 
Accumulated Depreciation at January 1, 2022(5.0)(3.0)(11.0)(3.3)(22.3)
Net book amount at January 1, 202272.9 11.9 91.9 1.2 177.9 
Twelve month period ended December 31, 2022
Opening net book amounts72.9 11.9 91.9 1.2 177.9 
Lease modification(52.4)1.7 5.1 — (45.5)
Additions— 31.7 8.2 3.6 43.4 
Disposals— (0.1)(1.3)(0.2)(1.6)
Depreciation(7.1)(5.2)(9.0)(1.7)(23.0)
Currency Translation3.4 (2.0)(0.8)(0.1)0.4 
Net book value at December 31, 202216.8 37.9 94.2 2.8 151.6 
Cost at December 31, 202228.7 45.6 111.0 7.4 192.7 
Accumulated Depreciation at December 31, 2022(11.9)(7.7)(16.8)(4.6)(41.1)
Net book amount at December 31, 202216.8 37.9 94.2 2.8 151.6 
Twelve month period ended December 31, 2023
Opening net book amounts16.8 37.9 94.2 2.8 151.6 
Lease modification(2.1)3.3 0.7 — 2.0 
Additions66.0 27.1 8.0 2.3 103.4 
Disposals(0.1)— — (0.3)(0.4)
Depreciation(11.8)(9.2)(10.0)(1.9)(32.9)
Currency Translation(3.3)(4.1)(2.1)(0.2)(9.8)
Net book value at December 31, 202365.3 55.1 90.8 2.8 214.0 
Cost at December 31, 202387.5 70.5 116.9 8.1 283.1 
Accumulated Depreciation at December 31, 2023(22.1)(15.4)(26.1)(5.4)(69.1)
Net book amount at December 31, 202365.3 55.1 90.8 2.8 214.0