Summary of significant accounting policies, Property, Vessels and Equipment (Details)	12 Months Ended
Dec. 31, 2022
Properties [Member]
Property, vessels and equipment [Abstract]
Valuation period of properties	four years
Vessels [Member] \| Minimum [Member]
Property, vessels and equipment [Abstract]
Period of amortization of repair costs	2 years
Vessels [Member] \| Maximum [Member]
Property, vessels and equipment [Abstract]
Period of amortization of repair costs	5 years

The measurement bases used for determining the gross carrying amount for a class of property, plant and equipment. [Refer: Gross carrying amount [member]; Property, plant and equipment]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2022-03-24
-Paragraph 73
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2022-en-r&anchor=para_73_a&doctype=Standard
-URIDate 2022-03-24

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