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Share listing expense and change in fair value of warrant liabilities - Additional Information (Detail)
€ / shares in Units, $ / shares in Units, € in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2022
EUR (€)
shares
Warrants
€ / shares
Dec. 31, 2022
USD ($)
Dec. 31, 2021
EUR (€)
€ / shares
Dec. 31, 2021
USD ($)
Dec. 31, 2020
EUR (€)
€ / shares
Dec. 31, 2020
USD ($)
Dec. 31, 2022
$ / shares
Dec. 31, 2021
$ / shares
Dec. 31, 2020
$ / shares
Jul. 01, 2020
EUR (€)
shares
Warrants
€ / shares
Jul. 01, 2020
$ / shares
Disclosure of share listing expense [line items]                      
Expense on the closing date         € 152,787            
Gains losses on financial liabilities at fair value through profit or loss € 10,945   € (10,990)   € 17,775            
ARYA [member]                      
Disclosure of share listing expense [line items]                      
Fair value of ARYA ordinary shares and warrants 243,100                    
Closing price of ARYA ordinary shares | $ / shares                     $ 15.15
Identifiable net assets 90,284                 € 90,300  
Expense on the closing date € 152,787                    
Warrants [member]                      
Disclosure of share listing expense [line items]                      
Closing price of ARYA public warrants | (per share) € 2.35   € 3.88   € 2.35   $ 2.51 $ 4.39 $ 2.88 € 4.82 $ 5.41
Gains losses on financial liabilities at fair value through profit or loss € 10,900 $ 11.5 € 11,000 $ 13.0 € 17,800 $ 20.3          
Warrants [member] | ARYA [member]                      
Disclosure of share listing expense [line items]                      
Fair value of ARYA ordinary shares and warrants € 34,644                    
ARYA Shares | Warrants 7,187,500                 7,187,500  
Closing price of ARYA public warrants | € / shares € 4.82                    
Financial liabilities € 34,400                    
Ordinary shares [member]                      
Disclosure of share listing expense [line items]                      
Closing price of ARYA ordinary shares | € / shares                   € 0.01  
Ordinary shares [member] | ARYA [member]                      
Disclosure of share listing expense [line items]                      
Fair value of ARYA ordinary shares and warrants € 243,071                    
Closing price of ARYA ordinary shares | € / shares € 13.53                    
ARYA Shares | shares 17,968,750                 17,968,750