XML 133 R109.htm IDEA: XBRL DOCUMENT v3.26.1
Intangible assets - Schedule of Goodwill Originated on Acquisitions Made by the Group (Details) - EUR (€)
€ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of detailed information about intangible assets [line items]      
Goodwill € 554,086 € 614,363 € 572,274
Goodwill and Brand Names      
Disclosure of detailed information about intangible assets [line items]      
Goodwill 400,365 448,822  
Goodwill and Brand Names | Zegna segment      
Disclosure of detailed information about intangible assets [line items]      
Goodwill 32,588 33,344  
Goodwill and Brand Names | Thom Browne segment      
Disclosure of detailed information about intangible assets [line items]      
Goodwill € 367,777 € 415,478