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Goodwill and Intangibles - Additional Information (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Amortization € (8.2) € (7.8) € (8.6)
Discount rate 6.40% 5.80%  
Long-term growth rate 1.00% 1.00%  
Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss € 9.9 € 7.8 € 8.6
Accumulated depreciation, amortisation and impairment [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Amortization € 8.2 € 7.8