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Segment Information - Additional Information (Details)	3 Months Ended
	Sep. 30, 2022 Segment
Disclosure Of Operating Segments [Abstract]
Number of operating segment	1

X

- References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfOperatingSegmentsAbstract
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of operating segment.

+ References

No definition available.

+ Details

Name:	meso_NumberOfOperatingSegment
Namespace Prefix:	meso_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration