Segment information and revenue from contracts with customers - Contract balances (Details) - EUR (€) € in Thousands	Dec. 31, 2022	Dec. 31, 2021	Jan. 01, 2021	Dec. 31, 2020
Segment information and revenue from contracts with customers
Trade receivables (note 16)	€ 13,637	€ 21,065	€ 25,656	€ 25,656
Contract assets (note 16)	2,911	2,397	3,332	3,332
Advance consideration included in contract liabilities	651	2,506		2,516
Contract liabilities (note 20.2)	€ 651	€ 4,842	€ 4,479	€ 4,479

The amount of an entity’s obligation to transfer goods or services to a customer for which the entity has received consideration (or the amount is due) from the customer.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2022-03-24
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-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Balance Type:	credit
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- Definition

The amount of current contract assets. [Refer: Contract assets]

+ References

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of current receivables from contracts with customers. [Refer: Receivables from contracts with customers]

+ References

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

The amount of liabilities representing income that has been received (or the amount is due) but is not yet earned, including contract liabilities. [Refer: Contract liabilities]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 78
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_78&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard
-URIDate 2022-03-24

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Balance Type:	credit
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- References

No definition available.

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