Borrowings - Summary Of Disclosure Of Actual Covenant Ratios (Detail) - EUR (€) € in Millions  | 
6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2022  | 
Jun. 30, 2021  | 
Dec. 31, 2021  | 
Dec. 31, 2020  | 
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| Disclosure Of Actual Covenant Ratios [Line Items] | ||||
| EBITDA margin | 5.63% | 12.92% | 3.77% | 25.84% | 
| EBITDA | € 7.0 | € 8.0 | € 3.6 | € 15.3 | 
| Interest coverage | 21.7 | 13.57 | 17.78 | 16.2 | 
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- Definition Disclosure of actual covenant ratios. No definition available. 
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- Definition Earnings before interest, taxes, depreciation, and amortization. No definition available. 
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- Definition EBITDA margin ratio. No definition available. 
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- Definition Interest coverage. No definition available. 
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