The amount of additions to right-of-use assets. [Refer: Right-of-use assets]

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The amount of current lease liabilities. [Refer: Lease liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2019-01-01
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- Definition

The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2019-01-01
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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.

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- Definition

The amount of interest expense on lease liabilities. [Refer: Lease liabilities]

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-Note Effective 2019-01-01
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The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration.

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The amount of non-current lease liabilities. [Refer: Lease liabilities]

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- Definition

The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period.

+ References

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- Definition

The amount of assets that represent a lessee's right to use an underlying asset for the lease term. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Leases - Additional Information (Detail) - EUR (€) € in Thousands	6 Months Ended
	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Disclosure of quantitative information about right-of-use assets [line items]
Property , plant and equipment	€ 42,537		€ 4,325
Right-of-use-assets	36,000	€ 18,400
Additions in right-of-use-assets	19,800
Depreciation on right-of-use-assets	2,200
Carrying amount of lease liabilities	36,302	€ 17,700
Non-current lease liabilities	31,461
Current lease liabilities	4,841
Interest on lease liabilities	300
Research and Development Costs [member]
Disclosure of quantitative information about right-of-use assets [line items]
Depreciation on right-of-use-assets	1,700
General and Administrative Expenses [member]
Disclosure of quantitative information about right-of-use assets [line items]
Depreciation on right-of-use-assets	€ 500