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Trade Receivables - Summary of Changes in Provision for Doubtful Accounts (Detail) - EUR (€)
€ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Changes In Allowance For Doubtful Accounts [Abstract]    
Balance at beginning of year € 7,881 € 8,699
Charges – bad debt expense 76 1,802
Reductions – write off of uncollectible amounts (2,015) (1,024)
Reversal - reversal to profit and loss (617)  
Reclassification to assets held for sale   (1,596)
Balance at end of year € 5,325 € 7,881