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Equity - Summary of Movements of Shares in Share Trust (Details) - Mesoblast Employee Share Trust - shares | 3 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021
Disclosure Of Movements Of Shares In Share Trust [Line Items] |  |
Opening balance, shares | 542,903 | 771,983
Exercise of share options ,shares |  | (165,747)
Ending balance, shares | 542,903 | 606,236

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- Definition The number of share options exercised in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -Subparagraph b -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_b_iv&doctype=Standard -URIDate 2022-03-24 + Details
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Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

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- Definition Disclosure of movements of shares in share trust. + References No definition available. + Details
Name: | meso_DisclosureOfMovementsOfSharesInShareTrustLineItems
Namespace Prefix: | meso_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Shares held in trust. + References No definition available. + Details
Name: | meso_SharesHeldInTrust
Namespace Prefix: | meso_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |