The gains (losses) on financial liabilities measured at amortised cost. [Refer: Financial liabilities at amortised cost]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph 20
-Subparagraph a
-Clause v
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_20_a_v&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 56
-Subparagraph a
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_56_a_ii&doctype=Standard
-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 56
-Subparagraph a
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_56_a_ii&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_GainsLossesOnFinancialLiabilitiesAtAmortisedCost
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Financial gain (loss) - Narrative (Details) - EUR (€) € in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disclosure Of Financial Gain (Loss) [Line Items]
Effective interest rate		34.00%		34.00%
Foreign exchange gains	€ 1,308	€ 110	€ 10,024	€ 189
Royalties Royalty Certificates
Disclosure Of Financial Gain (Loss) [Line Items]
Losses on financial liabilities at amortised cost				€ 940
United States of America, Dollars
Disclosure Of Financial Gain (Loss) [Line Items]
Foreign exchange loss			1,835
Foreign exchange gains			6,733
Foreign exchange gains (losses) on translation of foreign operations			€ 2,736