Carrying values of vessels, vessels under construction, right of use assets for vessels and goodwill - Capitalized interest (Details) $ in Millions	12 Months Ended
Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Disclosure of impairment of assets [Abstract]
Interest costs capitalised	$ 0.0	$ 0.2	$ 0.2
Capitalisation rate of borrowing costs eligible for capitalisation		0.10%
Number of vessels under construction	0	0

The weighted average of interest and other costs that an entity incurs in connection with the borrowing of funds applicable to the borrowings of the entity that are outstanding during the period, other than borrowings made specifically for the purpose of obtaining a qualifying asset. [Refer: Weighted average [member]; Borrowings]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 23
-IssueDate 2023-01-01
-Paragraph 26
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=23&code=ifrs-tx-2023-en-r&anchor=para_26_b&doctype=Standard
-URIDate 2023-03-23

Name:	ifrs-full_CapitalisationRateOfBorrowingCostsEligibleForCapitalisation
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration