Employee Benefits - Additional Information (Details) - EUR (€) € in Thousands		12 Months Ended
Jan. 01, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of information about defined benefit plans [abstract]
Defined contribution plan expense		€ 774	€ 923	€ 927
Net defined benefit liability (asset)	€ 1,181	864	922	1	€ 1
Current provisions		313	1,031	2,061
Actuarial gains (losses) on obligation		0	(255)	0
Provisions for employee benefits		€ 864	€ 922	€ 1,408
Increase (decrease) in net defined benefit liability (asset) resulting from other changes	€ 226

The amount of current provisions, including provisions for employee benefits. [Refer: Provisions]

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No definition available.

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The decrease (increase) in a net defined benefit liability (asset) resulting from the remeasurement of that net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)]

+ References

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The increase (decrease) in the net defined benefit liability (asset) resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Net defined benefit liability (asset)]

+ References

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The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]]

+ References

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The amount of post-employment benefit expense relating to defined contribution plans. Defined contribution plans are post-employment benefit plans under which an entity pays fixed contributions into a separate entity (a fund) and will have no legal or constructive obligation to pay further contributions if the fund does not hold sufficient assets to pay all employee benefits relating to employee service in the current and prior periods.

+ References

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The amount of provisions for employee benefits. [Refer: Employee benefits expense; Provisions]

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