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Summary of significant accounting policies - Segment reporting (Details) | 12 Months Ended
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Jun. 30, 2021 segment
Segment reporting |
Number of material segments | 1

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | manu_IfrsNumberOfReportableSegments
Namespace Prefix: | manu_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition No definition available. + References No definition available. + Details
Name: | manu_SegmentAbstract
Namespace Prefix: | manu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration