v3.20.1

Deferred tax - Narrative (Details) € in Thousands | 12 Months Ended
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Dec. 31, 2019 EUR (€) subsidiary | Dec. 31, 2018 EUR (€) | Dec. 31, 2017 EUR (€)
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Total amount of tax attributes and deductible temporary differences | € 1,179,000 |  |
Tax losses carried forward and deductible temporary differences | 953,300 | € 688,700 | € 567,000
Amount of statutory tax losses carried forward for offset against future profits | 374,100 |  |
Carried forward innovation income to be offset against future income | 224,700 | 195,400 | 106,400
Deferred tax assets | € 4,205 | 2,514 | 1,978
Number of subsidiaries operating on cost-plus basis | subsidiary | 2 |  |
Expiry between 2020 and 2028 |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Amount of statutory tax losses carried forward for offset against future profits | € 7,200 |  |
Belgium. |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Amount of statutory tax losses carried forward for offset against future profits | 307,700 |  |
Investment Deduction |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Investment deduction | 1,000 | 1,000 | 1,000
Innovation Income Deduction And Investment Deduction |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Investment deduction | € 225,700 | € 196,400 | € 107,400

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- Definition The number of subsidiaries operating on a cost-plus basis for which deferred tax assets were recognized. + References No definition available. + Details
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- Definition The amount of total tax attributes and deductible temporary differences. + References No definition available. + Details
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- Definition The amount of deductible temporary differences for which no deferred tax asset is recognised in the statement of financial position. [Refer: Temporary differences [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 81 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_e&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of deferred tax asset when: (a) the utilisation of the deferred tax asset is dependent on future taxable profits in excess of the profits arising from the reversal of existing taxable temporary differences; and (b) the entity has suffered a loss in either the current or preceding period in the tax jurisdiction to which the deferred tax asset relates. [Refer: Temporary differences [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 82 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_82&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 54 -Subparagraph o -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_o&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 56 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_56&doctype=Standard -URIDate 2019-03-27 + Details
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