v3.25.1
Intangible assets other than goodwill (Details)
 12 Months Ended
Dec. 31, 2024
EUR (€)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
EUR (€)
Dec. 31, 2022
EUR (€)
item
Disclosure of detailed information about intangible assets [line items]        
Beginning balance € 127,906,000      
Ending balance 164,862,000   € 127,906,000  
Number Of CAR T Product Candidates Acquired | item       2
Upfront Exclusivity Consideration Paid | $   $ 70,000,000    
Acquisition value        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance 175,290,000   176,740,000  
Additions 65,391,000   567,000  
Sales and disposals (5,476,000)   (1,878,000)  
Translation differences 246,000   (139,000)  
Ending balance 235,451,000   175,290,000 € 176,740,000
Amortization and impairment        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance (47,384,000)   (30,387,000)  
Amortization. (28,613,000)   (18,892,000)  
Sales and disposals 5,476,000   1,875,000  
Translation differences (68,000)   20,000  
Ending balance (70,589,000)   (47,384,000) (30,387,000)
Software and databases        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance 8,440,000      
Ending balance 4,722,000   8,440,000  
Software and databases | Acquisition value        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance 27,014,000   27,377,000  
Additions 666,000   567,000  
Sales and disposals (1,863,000)   (930,000)  
Ending balance 25,817,000   27,014,000 27,377,000
Software and databases | Amortization and impairment        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance (18,574,000)   (15,210,000)  
Amortization. (4,384,000)   (4,291,000)  
Sales and disposals 1,863,000   927,000  
Ending balance (21,095,000)   (18,574,000) (15,210,000)
Licenses, rights, technology and in process R&D        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance 38,817,000      
Ending balance 38,502,000   38,817,000  
Licenses, rights, technology and in process R&D | Acquisition value        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance 43,171,000   44,258,000  
Sales and disposals (3,613,000)   (948,000)  
Translation differences 246,000   (139,000)  
Ending balance 39,804,000   43,171,000 44,258,000
Licenses, rights, technology and in process R&D | Amortization and impairment        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance (4,354,000)   (3,896,000)  
Amortization. (493,000)   (1,426,000)  
Sales and disposals 3,613,000   948,000  
Translation differences (68,000)   20,000  
Ending balance (1,302,000)   (4,354,000) (3,896,000)
Exclusive rights        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance 71,929,000      
Ending balance 114,456,000   71,929,000  
Exclusive rights | Acquisition value        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance 89,720,000   89,720,000  
Additions 64,725,000      
Ending balance 154,445,000   89,720,000 89,720,000
Exclusive rights | Amortization and impairment        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance (17,791,000)   (6,154,000)  
Amortization. (22,198,000)   (11,637,000)  
Ending balance (39,989,000)   (17,791,000) (6,154,000)
CAR-T Product Candidates [member]        
Disclosure of detailed information about intangible assets [line items]        
Ending balance 28,200,000      
Exclusive Rights With Lonza [member]        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance 71,900,000      
Ending balance 60,300,000   71,900,000  
Contract costs        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance 8,720,000      
Ending balance 7,182,000   8,720,000  
Contract costs | Acquisition value        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance 15,384,000   15,384,000  
Ending balance 15,384,000   15,384,000 15,384,000
Contract costs | Amortization and impairment        
Disclosure of detailed information about intangible assets [line items]        
Beginning balance (6,664,000)   (5,126,000)  
Amortization. (1,538,000)   (1,538,000)  
Ending balance € (8,202,000)   € (6,664,000) € (5,126,000)