Contract Liabilities and Advances from Customers - Additional Information (Details) - EUR (€) € in Thousands  | 
Dec. 31, 2023  | 
Dec. 31, 2022  | 
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| Contract liabilities [abstract] | ||
| Contract liabilities | € 22,306 | € 14,847 | 
| Invoices issued to customers as advances | 187,853 | 132,377 | 
| Engineering System and In-vitro Diagnostic Business | ||
| Contract liabilities [abstract] | ||
| Contract liabilities gross | 76,853 | 64,293 | 
| Invoices issued to customers as advances | € 99,159 | € 79,140 | 
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- Definition The amount of an entity’s obligation to transfer goods or services to a customer for which the entity has received consideration (or the amount is due) from the customer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- References No definition available. 
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- Definition Contract liabilities gross. No definition available. 
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- Definition Invoices issued to customers as advances. No definition available. 
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- Details 
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