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Lease liabilities (non-current and current) - Additional information (Detail) - EUR (€)
€ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of Non Current and Current Portion of the Lease Liabilities [Line Items]      
Increase (decrease) in lease liability € 26,254 € 22,015  
COVID-19-related rent concessions € 635 € 1,515 € 1,799
Bottom Of Range [Member]      
Disclosure of Non Current and Current Portion of the Lease Liabilities [Line Items]      
Borrowings interest rate 3.00% 3.00%  
Top of Range [member]      
Disclosure of Non Current and Current Portion of the Lease Liabilities [Line Items]      
Borrowings interest rate 12.00% 12.00%