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Revenue from Contracts with Customers - Summary of Contract Liabilities Allocated to Remaining Performance Obligations (Unsatisfied or Partially Unsatisfied) (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Performance Obligations [Line Items]
Contract liabilities	€ 371,475	€ 190,692
Unsatisfied Or Partially Unsatisfied
Disclosure Of Performance Obligations [Line Items]
Contract liabilities	371,475	190,692
Within One Year | Unsatisfied Or Partially Unsatisfied
Disclosure Of Performance Obligations [Line Items]
Contract liabilities	299,583	93,583
More Than One Year | Unsatisfied Or Partially Unsatisfied
Disclosure Of Performance Obligations [Line Items]
Contract liabilities	€ 71,892	€ 97,109

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2020-01-01
-Paragraph 105
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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-Paragraph 116
-Subparagraph a
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+ Details

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X

- Definition

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.

+ Details

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