Earnings Per Share - Summary Of Basic And Diluted Earnings Loss Per Share (Detail) - EUR (€) € / shares in Units, € in Thousands, shares in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings per share [abstract]
Loss for the year	€ (62,800)	€ (223,777)	€ (11,402)
Dilutive effects on earnings per share	€ 0	€ 0
Total loss for basic and diluted earnings per share	€ (62,800)	€ (223,777)	€ (11,402)
Number of shares
Weighted average number of ordinary shares for basic and diluted earnings per share	163,367	112,725	91,746
Basic And Diluted Earnings Loss Per Share [Abstract]
Basic and diluted losses per share	€ (0.38)	€ (1.99)	€ (0.12)

The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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The profit (loss) attributable to ordinary equity holders of the parent entity. [Refer: Profit (loss)]

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The profit (loss) attributable to ordinary equity holders of the parent entity, adjusted for the effects of all dilutive potential ordinary shares. [Refer: Profit (loss)]

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Basic and diluted earning (loss) per share.

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