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Other Reserves - Additional Information (Detail) - EUR (€) € in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure Of Detailed Information About Other Reserve [Line Items] |  |
Reverse recapitalization | € 601,330 |
Transaction costs |  | € 1,570
Other reserves [member] |  |
Disclosure Of Detailed Information About Other Reserve [Line Items] |  |
Issuance of ordinary shares upon Reverse Recapitalization, net of issuance costs | € 599,760 |

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- Definition The amount of cost related to the issuance of shares. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 106 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_106_d&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 detailed information about other reserve + References No definition available. + Details
Name: | lanv_DisclosureOfDetailedInformationAboutOtherReserveLineItems
Namespace Prefix: | lanv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Issuance of ordinary shares upon reverse recapitalization included in other reserves. + References No definition available. + Details
Name: | lanv_IssuanceOfOrdinarySharesUponReverseRecapitalizationIncludedInOtherReserves
Namespace Prefix: | lanv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Shares issued as part of the reverse recapitalization. + References No definition available. + Details
Name: | lanv_SharesIssuedAsPartOfTheReverseRecapitalization
Namespace Prefix: | lanv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | ifrs-full_ComponentsOfEquityAxis=ifrs-full_OtherReservesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |