Events After The Reporting Period Events After the Reporting Period (Details) - USD ($)		3 Months Ended
Mar. 22, 2019	Mar. 31, 2019
Disclosure of events after reporting period [Abstract]
Description of nature of non-adjusting event after reporting period		$ 5,000,000
Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners	$ 0.035

The amount of dividends proposed or declared after the reporting period but before financial statements are authorised for issue. Such dividends are not recognised as a liability at the end of the reporting period because no obligation exists at that time.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 137
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_137_a&doctype=Standard
-URIDate 2018-03-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 10
-IssueDate 2018-01-01
-Paragraph 13
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=10&date=2018-03-01&anchor=para_13&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration