Issued capital and reserves - Shares Issued and Fully Paid (Details) € / shares in Units, € in Thousands, $ in Thousands	Dec. 31, 2025 USD ($) shares	Dec. 31, 2025 EUR (€) € / shares shares	Dec. 31, 2024 USD ($) shares	Dec. 31, 2024 EUR (€) € / shares shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2023 EUR (€) shares
Share Capital, Reserves And Other Equity Interest [Abstract]
Ordinary shares (in shares) \| shares	1,599,589,702	1,599,589,702	251,408,922	251,408,922	246,262,004	246,262,004
Ordinary shares	$ 18,718	€ 15,996	$ 2,934	€ 2,514	$ 2,878	€ 2,463
Par value per share (in usd per share) \| € / shares		€ 0.01		€ 0.01

The nominal value per share.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph B10
-Subparagraph a
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_B10_a_iii&doctype=Appendix&subtype=B
-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 160
-Subparagraph a
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_160_a_iii&doctype=Standard
-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 79
-Subparagraph a
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_79_a_iii&doctype=Standard
-URIDate 2025-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	instant