XML 58 R30.htm IDEA: XBRL DOCUMENT v3.24.3

Basis of preparation, significant judgments, and accounting policies, Segment Reporting (Details)	9 Months Ended
	Sep. 30, 2024 Segment
Segment reporting [Abstract]
Number of segments	1

X

- Definition

Number of segments reported by the entity.

+ References

No definition available.

+ Details

Name:	ghrs_NumberOfSegment
Namespace Prefix:	ghrs_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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