Commitments and contingencies (Details) - EUR (€) € in Thousands	Dec. 31, 2019	Dec. 31, 2018
Operating lease commitments - Group as lessee
Lease commitments for short-term leases for which recognition exemption has been used	€ 158	€ 9,230
Tax contingencies
Tax provisions	27,040	19,692
Uncertain tax positions for which no provision has been made	8,184,000
Tax provisions
Tax contingencies
Tax provisions	€ 25,788	€ 19,675

The amount of the lease commitments for short-term leases accounted for applying paragraph 6 of IFRS 16. Short-term lease is a lease that, at the commencement date, has a lease term of 12 months or less. A lease that contains a purchase option is not a short-term lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2019-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_LeaseCommitmentsForShorttermLeasesForWhichRecognitionExemptionHasBeenUsed
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant