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Retirement Benefits (Tables) | 12 Months Ended
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Dec. 31, 2017
Text block1 [abstract] |
Summary of Retirement Benefits |
|  | UNITED STATES DOLLAR |
|  | 2017 |  |  | 2016 |  |  | 2015 |
All employees are members of various defined contribution retirement schemes. |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The disclosure of defined benefit plans. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2017-01-01 -Paragraph 138 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_138&doctype=Standard -URIDate 2017-03-09 + Details
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