Annual and transition report of foreign private issuers [Sections 13 or 15(d)]

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

v3.25.1
Intangible assets - Summary of Movements in Intangible Assets (Detail) - EUR (€)
€ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets € 21,013 € 24,648
Disposals (8,030)  
Amortization (3,053) (3,635)
Amortization of disposals 8,018  
Impairments (5,833)  
Reclassifications 31  
Ending balance, intangible assets 12,146 21,013
Software and licenses    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets 2,888 4,283
Disposals (855)  
Amortization (1,268) (1,395)
Amortization of disposals 849  
Impairments (294)  
Reclassifications 0  
Ending balance, intangible assets 1,320 2,888
Internally developed software    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets 1,467 3,312
Disposals (7,175)  
Amortization (1,390) (1,845)
Amortization of disposals 7,169  
Impairments 0  
Reclassifications 31  
Ending balance, intangible assets 102 1,467
Customer relationships    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets 5,934 6,329
Disposals 0  
Amortization (395) (395)
Amortization of disposals 0  
Impairments (5,539)  
Reclassifications 0  
Ending balance, intangible assets 0 5,934
Goodwill    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets 10,724 10,724
Disposals 0  
Amortization 0 0
Amortization of disposals 0  
Impairments 0  
Reclassifications 0  
Ending balance, intangible assets 10,724 10,724
Cost    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets 38,023 38,023
Ending balance, intangible assets 30,024 38,023
Cost | Software and licenses    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets 6,606 6,606
Ending balance, intangible assets 5,751 6,606
Cost | Internally developed software    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets 14,133 14,133
Ending balance, intangible assets 6,989 14,133
Cost | Customer relationships    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets 6,560 6,560
Ending balance, intangible assets 6,560 6,560
Cost | Goodwill    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets 10,724 10,724
Ending balance, intangible assets 10,724 10,724
Accumulated amortization and impairment    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets (17,010) (13,375)
Ending balance, intangible assets (17,878) (17,010)
Accumulated amortization and impairment | Software and licenses    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets (3,718) (2,323)
Ending balance, intangible assets (4,431) (3,718)
Accumulated amortization and impairment | Internally developed software    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets (12,666) (10,821)
Ending balance, intangible assets (6,887) (12,666)
Accumulated amortization and impairment | Customer relationships    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets (626) (231)
Ending balance, intangible assets (6,560) (626)
Accumulated amortization and impairment | Goodwill    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Beginning balance, intangible assets 0 0
Ending balance, intangible assets € 0 € 0