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v3.19.1

Income tax and deferred taxes (Details 3) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Deferred tax assets | $ 139,728 | $ 128,360 |
Deferred Tax Liabilities, Net | (175,361) | (205,283) |
Deferred tax liability (asset) | (175,361) | (205,283) | $ 205,455
Unrealized loss [Member] |  |  |
Deferred tax assets | 75,832 | 68,544 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | (75,832) | (68,544) | (86,156)
Property, plant and equipment and capitalized interest [Member] |  |  |
Deferred tax assets | 0 | 0 |
Deferred Tax Liabilities, Net | (196,843) | (211,374) |
Deferred tax liability (asset) | 196,843 | 211,374 | 225,124
Facility closure provision [Member] |  |  |
Deferred tax assets | 4,280 | 3,469 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | (4,280) | (3,469) | (1,589)
Manufacturing expenses [Member] |  |  |
Deferred tax assets | 0 | 0 |
Deferred Tax Liabilities, Net | (103,760) | (102,748) |
Deferred tax liability (asset) | 103,760 | 102,748 | 110,630
Staff severance indemnities, unemployment insurance [Member] |  |  |
Deferred tax assets | 0 | 0 |
Deferred Tax Liabilities, Net | (5,679) | (6,792) |
Deferred tax liability (asset) | 5,679 | 6,792 | 5,214
Vacation accrual [Member] |  |  |
Deferred tax assets | 5,155 | 4,887 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | (5,155) | (4,887) | (4,061)
Inventory provision [Member] |  |  |
Deferred tax assets | 28,155 | 25,172 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | (28,155) | (25,172) | (20,684)
Materials provision [Member] |  |  |
Deferred tax assets | 6,239 | 7,107 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | (6,239) | (7,107) | (7,776)
Forwards [Member] |  |  |
Deferred tax assets | 2,169 | 624 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | (2,169) | (624) | (10,206)
Employee benefits [Member] |  |  |
Deferred tax assets | 3,309 | 2,317 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | (3,309) | (2,317) | (6,783)
Research and development expenses [Member] |  |  |
Deferred tax assets | 0 | 0 |
Deferred Tax Liabilities, Net | (2,216) | (3,501) |
Deferred tax liability (asset) | 2,216 | 3,501 | 4,641
Accounts Receivable [Member] |  |  |
Deferred tax assets | 4,188 | 4,253 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | (4,188) | (4,253) | (4,305)
Provision for legal complaints and expenses [Member] |  |  |
Deferred tax assets | 4,013 | 5,243 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | (4,013) | (5,243) | (7,686)
Loan approval expenses [Member] |  |  |
Deferred tax assets | 0 | 0 |
Deferred Tax Liabilities, Net | (2,337) | (2,670) |
Deferred tax liability (asset) | 2,337 | 2,670 | 3,115
Junior mining companies valued based on stock price [Member] |  |  |
Deferred tax assets | 0 | 0 |
Deferred Tax Liabilities, Net | (976) | (2,474) |
Deferred tax liability (asset) | 976 | 2,474 | 1,300
Royality [Member] |  |  |
Deferred tax assets | 0 | 0 |
Deferred Tax Liabilities, Net | (3,278) | (4,084) |
Deferred tax liability (asset) | 3,278 | 4,084 | 6,457
Tax loss benefit [Member] |  |  |
Deferred tax assets | 1,124 | 1,437 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | (1,124) | (1,437) | (1,302)
Other deferred tax assets [Member] |  |  |
Deferred tax assets | 5,005 | 5,002 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | (5,005) | (5,002) | (266)
Foreign items other [Member] |  |  |
Deferred tax assets | 259 | 305 |
Deferred Tax Liabilities, Net | 0 | 0 |
Deferred tax liability (asset) | $ (259) | $ (305) | $ (212)

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