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Income Tax - Summary of Current and Deferred Tax Expense (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Major Components Of Tax Expense Income [Abstract]
Current income taxes	€ 17	€ (296)	€ 600
Deferred taxes	(161,034)
Other taxes	17	28
Income taxes	€ (161,000)	€ (268)	€ 600

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- Definition

Other components of tax expense (income).

+ References

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- Definition

The amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) for a period.

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The amount of tax expense (income) relating to changes in deferred tax liabilities and deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities]

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The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax. [Refer: Current tax expense (income); Deferred tax expense (income)]

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