Assets held for sale and associated liabilities - Narrative (Details) - Mahigaming LLC € in Millions, $ in Millions		9 Months Ended	12 Months Ended
Apr. 07, 2021 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 EUR (€)
Disclosure of detailed information about financial instruments [line items]
Option consideration	$ 2.5	$ 10.0
Final consideration			$ 12.9	€ 12.0
Portion of cash received			$ 10.0	€ 9.2

The portion of consideration paid or received, consisting of cash and cash equivalents, in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Total for all subsidiaries [member]; Cash and cash equivalents; Consideration paid (received)]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 40
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_40_b&doctype=Standard
-URIDate 2024-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration