v3.26.1
Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance € 935.3  
Impairment 57.8  
Property, plant and equipment, ending balance 1,080.9 € 935.3
Gross carrying amount    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance 1,257.7 969.0
Additions 189.2 287.9
Disposals 10.2 5.0
Reclassifications 0.0 0.0
Currency differences 32.9 (5.8)
Additions from business combinations 152.6  
Property, plant and equipment, ending balance 1,556.4 1,257.7
Cumulative depreciation and impairment charges    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance (322.4) (211.8)
Disposals (8.3) (4.1)
Reclassifications 0.5  
Currency differences (6.7) 1.7
Depreciation 74.1 54.9
Impairment 94.5 58.1
Property, plant and equipment, ending balance (475.5) (322.4)
Land and buildings    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance 294.6  
Property, plant and equipment, ending balance 411.0 294.6
Land and buildings | Gross carrying amount    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance 369.4 235.4
Additions 32.4 46.2
Disposals 0.1 0.3
Reclassifications 143.4 86.6
Currency differences 8.7 (1.5)
Additions from business combinations 50.0  
Property, plant and equipment, ending balance 586.4 369.4
Land and buildings | Cumulative depreciation and impairment charges    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance (74.8) (36.2)
Disposals 0.0 (0.1)
Reclassifications 0.0  
Currency differences (2.4) 0.4
Depreciation 23.8 12.3
Impairment 79.2 26.0
Property, plant and equipment, ending balance (175.4) (74.8)
Equipment, tools and installations    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance 184.7  
Property, plant and equipment, ending balance 198.5 184.7
Equipment, tools and installations | Gross carrying amount    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance 427.7 344.1
Additions 25.5 49.3
Disposals 9.5 4.7
Reclassifications 38.5 36.3
Currency differences 8.3 (2.7)
Additions from business combinations 17.6  
Property, plant and equipment, ending balance 491.5 427.7
Equipment, tools and installations | Cumulative depreciation and impairment charges    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance (243.0) (175.6)
Disposals (8.3) (4.0)
Reclassifications 0.5  
Currency differences (3.7) 1.0
Depreciation 50.3 38.3
Impairment 12.2 32.1
Property, plant and equipment, ending balance (293.0) (243.0)
Construction in progress and advance payments    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance 456.0  
Property, plant and equipment, ending balance 471.4 456.0
Construction in progress and advance payments | Gross carrying amount    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance 460.6 389.5
Additions 131.3 192.4
Disposals 0.6 0.0
Reclassifications (181.9) (122.9)
Currency differences 15.9 (1.6)
Additions from business combinations 85.0  
Property, plant and equipment, ending balance 478.5 460.6
Construction in progress and advance payments | Cumulative depreciation and impairment charges    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning balance (4.6) 0.0
Disposals 0.0 0.0
Reclassifications 0.0  
Currency differences (0.6) 0.3
Depreciation 0.0 4.3
Impairment 3.1 0.0
Property, plant and equipment, ending balance € (7.1) € (4.6)