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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, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Total depreciation and amortisation | € 19,733 | € 20,724 | € 20,177
Total depreciation and amortisation expense | 6,526 | 8,639 | 8,356
Cost of sales [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | 6,272 | 6,535 | 6,234
Amortisation of intangible assets | 1 | 2 | 2
Government grants | (1,388) | (1,503) | (1,414)
Total depreciation and amortisation | 5,138 | 7,136 | 6,942
Cost of sales [member] | Right-of-use assets [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | 253 | 2,102 | 2,120
Selling expenses [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Total depreciation and amortisation expense | 12,450 | 12,369 | 11,832
Selling expenses [member] | Right-of-use assets [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | 10,121 | 9,919 | 9,579
Selling expenses [member] | Property, plant and equipment [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | 2,329 | 2,450 | 2,253
Administrative expenses [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Amortisation of intangible assets | 1,568 | 1,039 | 1,029
Government grants | (67) | (145) | (59)
Total depreciation and amortisation expense | 2,145 | 1,219 | 1,403
Administrative expenses [member] | Right-of-use assets [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | 271 |  | 135
Administrative expenses [member] | Property, plant and equipment [member] |  |  |
Disclosure Of Depreciation And Amortization [Line Items] |  |  |
Depreciation | € 373 | € 325 | € 298

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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 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + 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 2024-01-01 -Paragraph 28 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_28_e&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 23 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_23_e&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph B13 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_B13_d&doctype=Appendix&subtype=B -URIDate 2024-03-27 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_102&doctype=Standard -URIDate 2024-03-27 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_99&doctype=Standard -URIDate 2024-03-27 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 104 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_104&doctype=Standard -URIDate 2024-03-27 + 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 2024-01-01 -Paragraph 39 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=20&code=ifrs-tx-2024-en-r&anchor=para_39_b&doctype=Standard -URIDate 2024-03-27 + Details
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