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Share-based payments - Summary of Employee Related Share Based Compensation Expense (Detail) - EUR (€) € in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disclosure Of Detailed Information About Share Based Compensation Expense [Line Items] |  |  |  |
Share-based compensation expense | € 5,560 | € 7,965 | € 11,262 | € 16,269
Research And Development Expense [Member] |  |  |  |
Disclosure Of Detailed Information About Share Based Compensation Expense [Line Items] |  |  |  |
Share-based compensation expense | 3,107 | 4,676 | 6,375 | 9,574
General And Administrative Expense [Member] |  |  |  |
Disclosure Of Detailed Information About Share Based Compensation Expense [Line Items] |  |  |  |
Share-based compensation expense | € 2,453 | € 3,289 | € 4,887 | € 6,695

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- Definition The amount of expense from share-based payment transactions with employees. [Refer: Expense from share-based payment transactions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Disclosure of detailed information about share based compensation expense [Line Items]. + References No definition available. + Details
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- Details
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- Details
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