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Intangibles Assets and Goodwill - Summary of Carrying Amount of Intangible Assets and Goodwill (Detail) - EUR (€) € in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Beginning balance | € 4,160 | € 4,254
Ending balance | 6,628 | 4,160
Gross carrying amount [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Beginning balance | 22,696 | 49,365
Additions | 4,073 | 951
Disposals | (8,144) | (27,611)
Effect of translation adjustments | 20 | (9)
Ending balance | 18,645 | 22,696
Accumulated depreciation, amortisation and impairment [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Beginning balance | (18,536) | (45,111)
Amortisation | (1,570) | (1,041)
Disposals | 8,102 | 27,611
Effect of translation adjustments | (13) | 5
Ending balance | (12,017) | (18,536)
Trademark patents and other [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Beginning balance | 396 | 380
Ending balance | 419 | 396
Trademark patents and other [member] | Gross carrying amount [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Beginning balance | 3,359 | 14,277
Additions | 220 | 188
Disposals | (302) | (11,098)
Effect of translation adjustments | 4 | (8)
Ending balance | 3,281 | 3,359
Trademark patents and other [member] | Accumulated depreciation, amortisation and impairment [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Beginning balance | (2,963) | (13,897)
Amortisation | (156) | (168)
Disposals | 260 | 11,098
Effect of translation adjustments | (3) | 4
Ending balance | (2,862) | (2,963)
Software [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Beginning balance | 1,843 | 1,953
Ending balance | 4,288 | 1,843
Software [member] | Gross carrying amount [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Beginning balance | 17,416 | 33,167
Additions | 3,853 | 763
Disposals | (7,842) | (16,513)
Effect of translation adjustments | 16 | (1)
Ending balance | 13,443 | 17,416
Software [member] | Accumulated depreciation, amortisation and impairment [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Beginning balance | (15,573) | (31,214)
Amortisation | (1,414) | (873)
Disposals | 7,842 | 16,513
Effect of translation adjustments | (10) | 1
Ending balance | (9,155) | (15,573)
Goodwill [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Beginning balance | 1,921 | 1,921
Ending balance | 1,921 | 1,921
Goodwill [member] | Gross carrying amount [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Beginning balance | 1,921 | 1,921
Ending balance | € 1,921 | € 1,921

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- Definition The amount of amortisation of intangible assets other than goodwill. [Refer: Depreciation and amortisation expense; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -Clause vi -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e_vi&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The decrease in intangible assets and goodwill resulting from disposals. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e_ii&doctype=Standard -URIDate 2024-03-27 + Details
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