| Employee Benefits - Summary of Employee Benefits (Details) - EUR (€) € in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Disclosure of information about defined benefit plans [abstract] | ||
| Employee severance pay | € 4,936 | € 5,895 | 
| Jubilee benefits | 213 | 253 | 
| Other post-employment plans | 979 | 699 | 
| Long term incentive plan | 169 | 3,653 | 
| Stock grant plan | 1,353 | 1,353 | 
| Other share-based compensation | 665 | |
| Total employee benefits | € 8,315 | € 11,853 | 
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- References No definition available. 
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- Definition The amount of non-current provisions for employee benefits. [Refer: Provisions for employee benefits] Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Employees severance pay. No definition available. 
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- Definition Jubilee benefit. No definition available. 
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- Definition Long term incentive plans. No definition available. 
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- Definition Other post-employment plans. No definition available. 
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- Definition Other share-based compensation. No definition available. 
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- Definition Stock grant plan. No definition available. 
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