Business combinations - Schedule of Purchase Consideration, Net Assets Acquired and Goodwill (Details) - EUR (€) € in Thousands |
Jul. 31, 2025 |
Jan. 31, 2025 |
Dec. 31, 2024 |
Jul. 31, 2024 |
Jan. 31, 2024 |
Jan. 01, 2024 |
Jul. 01, 2023 |
Apr. 28, 2023 |
|---|---|---|---|---|---|---|---|---|
| CGU Ermenegildo Zegna Korea Co.Ltd. | ||||||||
| Disclosure of detailed information about business combination [line items] | ||||||||
| Cash consideration paid | € 8,970 | |||||||
| Settlement of pre-existing intercompany balances | 2,540 | |||||||
| Total consideration | € 11,510 | |||||||
| CGU Thom Browne Korea Ltd. | ||||||||
| Disclosure of detailed information about business combination [line items] | ||||||||
| Cash consideration paid | € 7,991 | |||||||
| Settlement of pre-existing intercompany balances | € 4,413 | € 4,673 | € 9,066 | € 4,699 | € 4,881 | 18,583 | ||
| Total consideration | € 26,574 | |||||||
| Tom Ford International LLC | ||||||||
| Disclosure of detailed information about business combination [line items] | ||||||||
| Cash consideration paid | € 91,619 | |||||||
| Total consideration | € 119,073 |