v3.26.3
Related Party Disclosures - Additional Information (Detail) - EUR (€)
 6 Months Ended
Jun. 25, 2026
Apr. 08, 2026
Jun. 30, 2026
Jun. 30, 2025
Disclosure of transactions between related parties [line items]        
Par value per share € 2.4      
Insurance Premium Used For Settlement Of Damages     € 301,000 € 342,000
Bridge loan   € 5,650,000    
Class A Common Share [Member] | Orilla Asset Management, S.L. [Member]        
Disclosure of transactions between related parties [line items]        
Number of shares acquired during the period 501,361      
Class A Common Share [Member] | AM Gesti, S.L. [Member]        
Disclosure of transactions between related parties [line items]        
Number of shares acquired during the period 501,361      
Class A Common Share [Member] | S.L Inversiones Finanncieras Perseo S.L [Member]        
Disclosure of transactions between related parties [line items]        
Number of shares acquired during the period 501,361      
Class A Common Share [Member] | Consilium S.L [Member]        
Disclosure of transactions between related parties [line items]        
Number of shares acquired during the period 501,361      
Class A Common Share [Member] | Anangu Grup, S.L. [Member]        
Disclosure of transactions between related parties [line items]        
Number of shares acquired during the period 501,361      
Class A Common Share [Member] | Kariega Ventures S.L. [Member]        
Disclosure of transactions between related parties [line items]        
Number of shares acquired during the period 325,885      
Remuneration of Directors and Key Management [Member]        
Disclosure of transactions between related parties [line items]        
Loans And Advances To Senior Management     0 0
Members of Senior Management [Member]        
Disclosure of transactions between related parties [line items]        
Key management personnel Post employment benefit expense     0 0
Key management personnel pension or life insurance obligations     € 0 € 0