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Share Based Payments (Narrative) (Details) | 12 Months Ended
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Dec. 31, 2017
Restricted Share Units [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Description of vesting requirements for share-based payment arrangement | RSUs are settled in either cash or equity, as determined by the Company's Board of Directors at the grant date and typically vest over three years, in tranches of 20%, 30%, and 50%
Performance Share Units [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Description of vesting requirements for share-based payment arrangement | Performance Share Units ("PSUs") are performance-based awards for the achievement of specified performance metrics by specified deadlines, which are settled in cash and vest over a three-year period in tranches of 20%, 30% and 50%.
Vesting Tranche One Period [member] | Restricted Share Units [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Vesting tranche percentage sharebased arrangements | 20.00%
Vesting Tranche One Period [member] | Performance Share Units [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Vesting tranche percentage sharebased arrangements | 20.00%
Vesting Tranche Two Period [member] | Restricted Share Units [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Vesting tranche percentage sharebased arrangements | 30.00%
Vesting Tranche Two Period [member] | Performance Share Units [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Vesting tranche percentage sharebased arrangements | 30.00%
Vesting Tranche Three Period [member] | Restricted Share Units [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Vesting tranche percentage sharebased arrangements | 50.00%
Vesting Tranche Three Period [member] | Performance Share Units [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Vesting tranche percentage sharebased arrangements | 50.00%

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- Definition Vesting tranche percentage sharebased arrangements. + References No definition available. + Details
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- Definition The description of the vesting requirements for a type of share-based payment arrangement that existed at any time during the period. An entity with substantially similar types of share-based payment arrangements may aggregate this information. [Refer: Share-based payment arrangements [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2017-01-01 -Paragraph 45 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_45_a&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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