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v3.19.1

Commitments - Schedule of Commitments (Detail) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Capital expenditure |  |
Contracted for Operating leases | $ 50.0 | $ 44.5
Within one year [member] |  |
Capital expenditure |  |
Operating lease commitment | 76.7 | 66.6
Later than one and not later than five years [member] |  |
Capital expenditure |  |
Operating lease commitment | 256.5 | 257.9
Later than five years [member] |  |
Capital expenditure |  |
Operating lease commitment | $ 324.2 | $ 448.0

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- Definition Operating lease commitment. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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- Definition The amount of capital commitments for which the entity has entered into a contract. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard -URIDate 2018-03-16 + Details
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- Details
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- Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |