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Earnings (loss) per ordinary share (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Numerator: |  |  |  |  |
Profit (loss) attributable to the Parent (US$'000) | $ 43,661 | $ (678) | [1] | $ (338,427) | [1]
Denominator: |  |  |  |  |
Weighted average basic shares outstanding | 171,406,272 | 171,949,128 | [1] | 171,838,153 | [1]
Basic earnings (loss) per ordinary share (US$) | $ 0.25 | $ 0.00 | [1] | $ (1.97) | [1]
Numerator:. |  |  |  |  |
Profit (loss) attributable to the Parent (US$'000) | $ 43,661 | $ (678) | [1] | $ (338,427) | [1]
Denominator:. |  |  |  |  |
Weighted average basic shares outstanding | 171,406,272 | 171,949,128 | [1] | 171,838,153 | [1]
Effect of dilutive securities | 123,340.00 | 0 |  | 0 |
Weighted average dilutive shares outstanding | 171,529,612 | 171,949,128 | [1] | 171,838,153 | [1]
Diluted earnings (loss) per ordinary share (US$) | $ 0.25 | $ 0.00 | [1] | $ (1.97) | [1]
[1] | The amounts for 2016 have been re-presented to show the results of the Spanish energy business within profit (loss) from continuing operations, as described in Note 1 to the consolidated financial statements.

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- Definition The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2018-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2018-03-01&anchor=para_70_b&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2018-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2018-03-01&anchor=para_66&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2018-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2018-03-01&anchor=para_66&doctype=Standard -URIDate 2018-03-16 + Details
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