Lease Liabilities (Details) - Leiden headquarters	Jul. 01, 2020
Disclosure of quantitative information about right-of-use assets [line items]
Lease agreement period	11 years
Renewal term	5 years

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

No definition available.

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration