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Tax on Profit/(Loss) for the Year and Deferred Tax - Summary of Tax on Profit/Loss and Deferred Tax (Detail) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Tax on profit/(loss) for the year: |  |  |
Current tax (expense)/income | € (3,289) | € (5,377) | € (3,723)
Current tax, adjustments to prior years | (126) | 3,904 | (1,654)
Deferred tax, movement for the year | (2,035) | (1,044) |
Deferred tax, adjustments to prior years | 607 | (4,786) |
Current tax expense (income) and adjustments for current tax of prior periods | (4,843) | (7,303) | (5,377)
Tax for the year can be explained as follows: |  |  |
Profit/(loss) before tax | (373,241) | (474,144) | (577,817)
Tax at the Danish corporation tax rate of 22% | 82,113 | 104,312 | 127,120
Tax effect of: |  |  |
Non-deductible costs | (9,740) | (8,494) | (17,094)
Additional tax deductions | 3,161 | 9,077 | 13,720
Impact from associates | (4,413) | (4,047) | (3,893)
Prior year adjustments | 481 | (1,294) |
Other effects including effect of different tax rates | 182 | (882) | (2,716)
Deferred tax asset, not recognized | (76,627) | (105,975) | (122,514)
Tax on profit/(loss) for the year | € (4,843) | € (7,303) | € (5,377)
Effective tax rate | 1.30% | 1.54% | 0.93%
Tax deductible losses | € 434,997 | € 521,697 | € 433,174
Other temporary differences, assets | 164,479 | 16,256 | 19,961
Deferred tax asset, not recognized | (599,476) | (537,953) | € (453,135)
Other temporary differences, liabilities | (7,258) | (5,830) |
Total deferred tax assets/(liabilities) at December 31 | € (7,258) | € (5,830) |

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