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Expenses by Nature - Summary of Depreciation and Amortization (Detail) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Total depreciation and amortisation | € 20,177 | € 20,065 | € 22,924
Total depreciation and amortisation | 8,356 | 7,895 | 10,144
Cost of sales [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | 6,234 | 5,970 | 6,846
Amortisation of intangible assets | 2 | 2 | 8
Government grants | (1,414) | (1,252) | (1,192)
Total depreciation and amortisation | 6,942 | 6,643 | 8,952
Cost of sales [member] | Right-of-use assets [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | 2,120 | 1,923 | 3,290
Selling expenses [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Total depreciation and amortisation | 11,832 | 11,819 | 12,441
Selling expenses [member] | Right-of-use assets [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | 9,579 | 9,534 | 9,776
Selling expenses [member] | Property, plant and equipment [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | 2,253 | 2,285 | 2,665
Administrative expenses [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Amortisation of intangible assets | 1,029 | 1,088 | 899
Government grants | (59) | (54) | (49)
Total depreciation and amortisation | 1,403 | 1,603 | 1,531
Administrative expenses [member] | Right-of-use assets [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | 135 | 249 | 310
Administrative expenses [member] | Property, plant and equipment [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | € 298 | € 320 | € 371

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- Definition The amount of amortisation expense. Amortisation is the systematic allocation of depreciable amounts of intangible assets over their useful lives. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of depreciation and amortisation expense. Depreciation and amortisation are the systematic allocations of depreciable amounts of assets over their useful lives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2022-03-24 -Paragraph 28 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2022-en-r&anchor=para_28_e&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2022-03-24 -Paragraph B13 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_B13_d&doctype=Appendix&subtype=B -URIDate 2022-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2022-03-24 -Paragraph 23 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2022-en-r&anchor=para_23_e&doctype=Standard -URIDate 2022-03-24 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_102&doctype=Standard -URIDate 2022-03-24 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_99&doctype=Standard -URIDate 2022-03-24 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 104 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_104&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of income recognised in relation to government grants. [Refer: Government grants] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 20 -IssueDate 2022-03-24 -Paragraph 39 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=20&code=ifrs-tx-2022-en-r&anchor=para_39_b&doctype=Standard -URIDate 2022-03-24 + Details
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