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Share-based compensation - VRS 2019 narrative (Details) - EUR (€) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Expense from share-based payment transactions with employees | € 21,600,000 |
2019 VRSUP |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Number of trading days |  | 10 days
Restricted stock units forfeiture period |  | 12 months
Vesting period | 1 year |
Fair value, RSUs |  | € 1.86
Expense from share-based payment transactions with employees | € 5,600,000 | € 6,900,000

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount of expense from share-based payment transactions with employees. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The weighted average fair value at the measurement date of granted equity instruments other than share options. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 47 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_47_b&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References No definition available. + Details
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- Definition The number of trading days considered when setting the exercise price of the share-based compensation award. + References No definition available. + Details
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- Definition The period during which former management beneficiaries incept work for a competitor of the entity which triggers forfeiture of unexercised equity instruments other than options granted under the share-based compensation plan. + References No definition available. + Details
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