Name:	gsh_DisclosureOfRevenuesCollectedAndSettledThroughRelatedPartiesLineItems
Namespace Prefix:	gsh_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount of revenue arising from exchanges of goods or services.

No definition available.

Name:	gsh_RevenueArisingFromExchangesOfGoodsOrServices
Namespace Prefix:	gsh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The revenue from freight transportation services transportation related services.

No definition available.

Name:	gsh_RevenueFromFreightTransportationServices
Namespace Prefix:	gsh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of revenue from rendering of other transportation related services.

No definition available.

Name:	gsh_RevenueFromRenderingOfOtherTransportationRelatedServices
Namespace Prefix:	gsh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of revenue arising from the rendering of passenger transport services. [Refer: Revenue]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2019-03-27