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Notes to Consolidated Statements of Cash Flows - Additional Information (Detail) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure Of Cash Flow Statement [Abstract] |  |  |
Additions to right-of-use assets | € 18,268 | € 37,557 | € 7,872
Lease liabilities additions | € 15,606 | € 36,527 | € 14,232

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- Definition The amount of additions to right-of-use assets. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 53 -Subparagraph h -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_53_h&doctype=Standard -URIDate 2022-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Disclosure of cash flow statement. + References No definition available. + Details
Name: | lanv_DisclosureOfCashFlowStatementAbstract
Namespace Prefix: | lanv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Lease liabilities additions. + References No definition available. + Details
Name: | lanv_LeaseLiabilitiesAdditions
Namespace Prefix: | lanv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration