XML 222 R207.htm IDEA: XBRL DOCUMENT v3.22.1
Income Tax Expense - Summary of Tax Loss Carry Forward (Detail) - EUR (€)
€ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Tax Loss Carryforwards [line items]    
Total € 368,780 € 396,763
Not More than Five Years [Member]    
Disclosure Of Tax Loss Carryforwards [line items]    
Total € 6,207 € 7,421
Expiration Date 2022-2026 2021-2025
More than Five Years [Member]    
Disclosure Of Tax Loss Carryforwards [line items]    
Total € 3,257 € 4,902
Expiration Date 2026 2025
No expiration [member]    
Disclosure Of Tax Loss Carryforwards [line items]    
Total € 359,316 € 384,440