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Segment Information (Schedule of Segment Information) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Disclosure of operating segments [line items] |  |
Revenues from external customers | $ 268,111 | $ 210,255
Cost of sales | (158,551) | (129,649)
Selling, general and administration | (24,911) | (31,117)
Impairment reversal (note 14) | 31,119 |
Other income (expenses) | (5,441) | (948)
Finance items | (5,376) | (1,431)
Income before Taxes | 104,951 | 47,110
Total tax expense | (38,646) | (29,252)
Net income for the year | 66,305 | 17,858
Assets | 706,648 | 562,915
Liabilities | 143,064 | 139,764
Capital Expenditure | 47,058 | 48,061
Material reconciling items [member] |  |
Disclosure of operating segments [line items] |  |
Selling, general and administration | (15,662) | (23,684)
Other income (expenses) | (1,626) | 195
Finance items | (867) | (1,847)
Income before Taxes | (18,155) | (25,336)
Total tax expense | (643) | (2,728)
Net income for the year | (18,798) | (28,064)
Assets | 82,978 | 40,351
Liabilities | 57,889 | 57,132
Capital Expenditure | 540 | 283
Bateas Reporting Segment [member] |  |
Disclosure of operating segments [line items] |  |
Revenues from external customers | 88,115 | 67,104
Cost of sales | (53,492) | (47,250)
Selling, general and administration | (3,251) | (2,616)
Impairment reversal (note 14) | 31,119 |
Other income (expenses) | (116) | (767)
Finance items | (4,620) | 718
Income before Taxes | 57,755 | 17,189
Total tax expense | (17,136) | (4,411)
Net income for the year | 40,619 | 12,778
Assets | 156,513 | 105,001
Liabilities | 35,169 | 23,622
Capital Expenditure | 13,184 | 8,996
Cuzcatlan Reporting Segment [member] |  |
Disclosure of operating segments [line items] |  |
Revenues from external customers | 179,996 | 143,151
Cost of sales | (105,059) | (82,399)
Selling, general and administration | (5,998) | (4,817)
Other income (expenses) | (3,699) | (376)
Finance items | 111 | (302)
Income before Taxes | 65,351 | 55,257
Total tax expense | (20,927) | (21,935)
Net income for the year | 44,424 | 33,322
Assets | 316,692 | 279,316
Liabilities | 48,441 | 57,962
Capital Expenditure | 22,577 | 36,773
Lindero Reporting Segment [member] |  |
Disclosure of operating segments [line items] |  |
Total tax expense | 60 | (178)
Net income for the year | 60 | (178)
Assets | 150,465 | 138,247
Liabilities | 1,565 | 1,048
Capital Expenditure | $ 10,757 | $ 2,009

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