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Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Disclosures Of Commitments And Contingencies [Abstract]

Disclosure of operating lease commitments

		December 31, 2017			December 31, 2016			December 31, 2015
		$M			$M			$M
	Operating lease commitments—Group as a lessee
	Minimum lease payments under operating leases recognized in the consolidated income statement	5.1			4.8			5.6

Disclosure of maturity analysis of operating lease payments

At the balance sheet date, the Group had outstanding commitments for future minimum lease payments under non-cancellable operating leases, which fall due as follows:

		December 31, 2017			December 31, 2016			December 31, 2015
		$M			$M			$M
	Within one year	5.4			4.6			4.9
	In two to five years	14.5			11.8			13.5
	In over five years	14.5			10.7			12.4
		34.4			27.1			30.8

X

- Definition

The disclosure of finance leases and operating leases by the lessee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2019-01-01
-Name IAS
-Number 17
-IssueDate 2017-01-01
-Paragraph 31
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=17&date=2017-03-02&anchor=para_31&doctype=Standard&book=B
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2019-01-01
-Name IAS
-Number 17
-IssueDate 2017-01-01
-Paragraph 35
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=17&date=2017-03-02&anchor=para_35&doctype=Standard&book=B
-URIDate 2017-03-09

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X

- Definition

The disclosure of a maturity analysis of operating lease payments. Operating lease is a lease that does not transfer substantially all the risks and rewards incidental to ownership of an underlying asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2019-01-01
-Name IFRS
-Number 16
-IssueDate 2017-01-01
-Paragraph 97
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2017-03-01&anchor=para_97&doctype=Standard
-URIDate 2017-03-09

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- Definition

Disclosures Of Commitments And Contingencies [Abstract]

+ References

No definition available.

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