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Intangible assets, net - Finite-Lived Intangible Assets Amortization Expense (Detail) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]      
Amortization € 127.6 € 135.1 € 133.0
Cost of Sales      
Finite-Lived Intangible Assets [Line Items]      
Amortization 102.7 105.9 107.8
R&D Costs      
Finite-Lived Intangible Assets [Line Items]      
Amortization 19.5 18.2 14.5
SG&A      
Finite-Lived Intangible Assets [Line Items]      
Amortization € 5.4 € 11.0 € 10.7