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v3.19.1

Other intangible assets (Tables) | 12 Months Ended
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Dec. 31, 2018
Disclosure of detailed information about intangible assets [abstract] |
Schedule of changes in the carrying amount of other intangible assets |
|  |  |  |  |  |  |  |  |  | Other |  | Accumulated |  |  |  |
|  | Development |  | Power Supply |  |  |  | Computer |  | Intangible |  | Depreciation |  | Impairment |  |
|  | Expenditure |  | Agreements |  | Rights of Use |  | Software |  | Assets |  | (Note 25.3) |  | (Note 25.5) |  | Total
|  | US$'000 |  | US$'000 |  | US$'000 |  | US$'000 |  | US$'000 |  | US$'000 |  | US$'000 |  | US$'000
Balance at January 1, 2017 |  | 40,354 |  | 37,836 |  | 20,345 |  | 5,815 |  | 21,784 |  | (54,629) |  | (8,666) |  | 62,839
Additions |  | 260 |  | — |  | 55 |  | — |  | 14,472 |  | (8,440) |  | (443) |  | 5,904
Disposals |  | — |  | — |  | — |  | (10) |  | (14,294) |  | 565 |  | — |  | (13,739)
Transfers from/(to) other accounts |  | 4,044 |  | — |  | — |  | — |  | (150) |  | (3,894) |  | — |  | —
Exchange differences |  | 5,824 |  | — |  | 2,639 |  | 242 |  | 2,451 |  | (6,353) |  | (1,149) |  | 3,654
Balance at December 31, 2017 |  | 50,482 |  | 37,836 |  | 23,039 |  | 6,047 |  | 24,263 |  | (72,751) |  | (10,258) |  | 58,658
Additions |  | 992 |  | — |  | — |  | — |  | 26,385 |  | (9,312) |  | (16,073) |  | 1,992
Disposals |  | — |  | — |  | — |  | (64) |  | (7,260) |  | — |  | — |  | (7,324)
Business combinations (Note 5) |  | — |  | — |  | — |  | 45 |  | — |  | — |  | — |  | 45
Transfers from/(to) other accounts |  | 1,919 |  | — |  | — |  | — |  | (1,919) |  | — |  | — |  | —
Exchange differences |  | (2,408) |  | — |  | (648) |  | (101) |  | (1,656) |  | 2,546 |  | 718 |  | (1,549)
Balance at December 31, 2018 |  | 50,985 |  | 37,836 |  | 22,391 |  | 5,927 |  | 39,813 |  | (79,517) |  | (25,613) |  | 51,822

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- References No definition available. + Details
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- Definition The disclosure of intangible assets that are material to the entity. [Refer: Intangible assets material to entity] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2018-01-01 -Paragraph 122 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2018-03-01&anchor=para_122_b&doctype=Standard -URIDate 2018-03-16 + Details
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