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Financial risk management - Summary of hedging reserve (Details) - GBP (£) £ in Thousands | Dec. 31, 2024 | Jun. 30, 2024 | Dec. 31, 2023
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Financial risk management |  |  |
Cash flow hedge reserve | £ (3,420) | £ (1,882) | £ 1,521
Cost of hedging reserve | (122) | 882 | (1,546)
Total hedging reserve | £ (3,542) | £ (1,000) | £ (25)

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- Definition A component of equity representing the accumulated portion of gain (loss) on a hedging instrument that is determined to be an effective hedge for cash flow hedges. [Refer: Cash flow hedges [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 78 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_78_e&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 9 -IssueDate 2023-01-01 -Paragraph 6.5.11 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=9&code=ifrs-tx-2023-en-r&anchor=para_6.5.11&doctype=Standard -URIDate 2023-03-23 + Details
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Balance Type: | credit
Period Type: | instant

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- Definition A component of equity representing the accumulated change in the value of the forward elements of forward contracts when separating the forward element and spot element of a forward contract and designating as the hedging instrument only the changes in the spot element. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 78 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_78_e&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 9 -IssueDate 2023-01-01 -Paragraph 6.5.16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=9&code=ifrs-tx-2023-en-r&anchor=para_6.5.16&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition not applicable + References No definition available. + Details
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- Definition Reserve of cash flow hedges and change in value of forward elements of forward contracts + References No definition available. + Details
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Namespace Prefix: | manu_
Data Type: | xbrli:monetaryItemType
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Period Type: | instant