Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Intangible assets - Summary of Movements in Intangible Assets (Detail)

v3.22.1
Intangible assets - Summary of Movements in Intangible Assets (Detail) - EUR (€)
€ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about intangible assets [line items]      
Intangible assets other than goodwill € 8,333 € 4,010 € 4,960
Additions 7,043 2,787  
Disposals 0 0  
Amortization (2,720) (3,737)  
Amortization of disposals 0 0  
Impairments 0 0  
Reclassifications 0 0  
Software [Member]      
Disclosure of detailed information about intangible assets [line items]      
Intangible assets other than goodwill 4,135 198 371
Additions 4,034 160  
Disposals 0 0  
Amortization (97) (333)  
Amortization of disposals 0 0  
Impairments 0 0  
Reclassifications 0 0  
Internally developed software [Member]      
Disclosure of detailed information about intangible assets [line items]      
Intangible assets other than goodwill 4,198 3,812 4,589
Additions 3,009 2,627  
Disposals 0 0  
Amortization (2,623) (3,404)  
Amortization of disposals 0 0  
Impairments 0 0  
Reclassifications 0 0  
Gross carrying amount [member]      
Disclosure of detailed information about intangible assets [line items]      
Intangible assets other than goodwill 18,017 10,974 8,187
Gross carrying amount [member] | Software [Member]      
Disclosure of detailed information about intangible assets [line items]      
Intangible assets other than goodwill 5,206 1,172 1,012
Gross carrying amount [member] | Internally developed software [Member]      
Disclosure of detailed information about intangible assets [line items]      
Intangible assets other than goodwill 12,811 9,802 7,175
Accumulated impairment [member]      
Disclosure of detailed information about intangible assets [line items]      
Intangible assets other than goodwill (9,684) (6,964) (3,227)
Accumulated impairment [member] | Software [Member]      
Disclosure of detailed information about intangible assets [line items]      
Intangible assets other than goodwill (1,071) (974) (641)
Accumulated impairment [member] | Internally developed software [Member]      
Disclosure of detailed information about intangible assets [line items]      
Intangible assets other than goodwill € (8,613) € (5,990) € (2,586)