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Income tax and deferred taxes - Tax Rate within Main Countries the Company Operates (Details) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 27.00% | 27.00% | 27.00%
Rate on value added tax payable, percentage | 12.00% | 12.00% |
Spain |  |  |
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 25.00% | 25.00% |
Belgium |  |  |
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 25.00% | 25.00% |
Mexico |  |  |
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 30.00% | 30.00% |
United States |  |  |
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 21.00% | 21.00% |
Rate on additional tax payable, percentage | 0.025 | 0.03 |
South Africa |  |  |
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 27.00% | 27.00% |
South Korea |  |  |
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 24.00% | 24.00% |
South Korea | Top of range |  |  |
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 24.00% | 24.00% |
South Korea | Minimum |  |  |
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 9.00% | 9.00% |
China |  |  |
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 25.00% | 25.00% |
Rate on value added tax payable, percentage | 12.00% | 12.00% |
Australia |  |  |
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 30.00% | 30.00% |
Sichuan, China |  |  |
Income tax and deferred taxes [Line Items] |  |  |
Applicable tax rate, percentage | 15.00% | 15.00% |

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- Definition The applicable income tax rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2024-03-27 + Details
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