Share Capital (Dividends) (Details) $ in Millions	12 Months Ended
Dec. 31, 2020 $ / shares	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Disclosure of share capital, reserves and other equity interest [Abstract]
Increase in Share Price	$ 0.01
Increase In Share Price, Second	$ 0.02
Dividends paid, ordinary shares \| $		$ 25.6	$ 23.9

The amount of dividends paid by the entity on ordinary shares. [Refer: Ordinary shares [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 34
-IssueDate 2020-01-01
-Paragraph 16A
-Subparagraph f
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=34&code=ifrs-tx-2020-en-r&anchor=para_16A_f&doctype=Standard
-URIDate 2020-01-01

Name:	ifrs-full_DividendsPaidOrdinaryShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration