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Equity - Summary of Movements of Shares in Share Trust (Details) | 6 Months Ended
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Dec. 31, 2023 USD ($) shares | Dec. 31, 2022 USD ($) shares
Disclosure Of Movements Of Shares In Share Trust [Line Items] |  |
Exercise of share options |  | $ 0
Mesoblast Employee Share Trust |  |
Disclosure Of Movements Of Shares In Share Trust [Line Items] |  |
Opening balance (in shares) | shares | 542,903 | 542,903
Opening balance | $ 0 | $ 0
Exercise of share options (in shares) | shares | 0 | 0
Exercise of share options | $ 0 | $ 0
Ending balance (in shares) | shares | 542,903 | 542,903
Ending balance | $ 0 | $ 0

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- Definition The increase (decrease) in equity resulting from the exercise of options. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 106 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_106_d&doctype=Standard -URIDate 2023-03-23 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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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 2023-01-01 -Paragraph 45 -Subparagraph b -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45_b_iv&doctype=Standard -URIDate 2023-03-23 + Details
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Namespace Prefix: | ifrs-full_
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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- Definition Shares held in trust, value. + References No definition available. + Details
Name: | meso_SharesHeldInTrustValue
Namespace Prefix: | meso_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | ifrs-full_CounterpartiesAxis=meso_MesoblastEmployeeShareTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |