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Income Tax Expense - Summary of Total Income Taxes (Detail) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure Of Income Taxes [line items] |  |  |
Current tax expense income | € (5,286) | € (3,766) | € (1,985)
Deferred tax liability asset | 897 | (575) | (350)
Total | (4,389) | (4,341) | (2,335)
Domestic [member] |  |  |
Disclosure Of Income Taxes [line items] |  |  |
Current tax expense income | (2,116) | (2,221) | (585)
Deferred tax liability asset |  | 430 | (387)
Foreign [member] |  |  |
Disclosure Of Income Taxes [line items] |  |  |
Current tax expense income | (3,170) | (1,545) | (1,400)
Deferred tax liability asset | € 897 | € (1,005) | € 37

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- Definition The amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) for a period. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 12 -IssueDate 2021-01-01 -Paragraph 80 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_80_a&doctype=Standard -URIDate 2021-03-24 + Details
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