The amount of assistance by government in the form of transfers of resources to an entity in return for past or future compliance with certain conditions relating to the operating activities of the entity, recognised as deferred income. They exclude those forms of government assistance that cannot reasonably have a value placed upon them and transactions with government that cannot be distinguished from the normal trading transactions of the entity. [Refer: Deferred income other than contract liabilities; Government [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard
-URIDate 2022-03-24

Name:	ifrs-full_GovernmentGrants
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Government grants (Details) SFr in Millions	12 Months Ended
Government grants (Details) SFr in Millions	Dec. 31, 2022 CHF (SFr) grant	Dec. 31, 2021 CHF (SFr)	Dec. 31, 2020 CHF (SFr)
Disclosure Of Government Grants [Line Items]
Number of grants \| grant	2
Investment term	3 years
Government grants	SFr 0.5
Maximum number of office rental grants \| grant	3
Income from government grants	SFr 1.4	SFr 0.6	SFr 0.5
Regional core management team costs
Disclosure Of Government Grants [Line Items]
Government grants	0.4
Office rental
Disclosure Of Government Grants [Line Items]
Government grants	SFr 0.1