The amount of current inventories. [Refer: Inventories]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-URIDate 2018-03-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
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-Subparagraph g
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
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Name:	ifrs-full_Inventories
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Explanation of the Effects of Transition to International Financial Reporting Standards - Summary of Impacts of IFRS Adjustments for Inventories (Detail) - EUR (€) € in Thousands	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2017
Disclosure of comparative information prepared under previous GAAP [line items]
Inventories	€ 84,227	€ 91,077	€ 91,014
Previous GAAP [member]
Disclosure of comparative information prepared under previous GAAP [line items]
Inventories		80,273	78,384
Effect of transition to IFRSs [member]
Disclosure of comparative information prepared under previous GAAP [line items]
Inventories		10,804	12,630
Revenue of finished goods derecognised [member] \| Effect of transition to IFRSs [member]
Disclosure of comparative information prepared under previous GAAP [line items]
Inventories		€ 10,804	€ 12,630