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Note 9 - Property, Plant and Equipment, Net - Components of Property, Plant and Equipment, Net (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | $ 6,229,143,000 |
End of the year |  | 6,063,908,000 | $ 6,229,143,000
Land and civil buildings [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 610,864,000 |
End of the year |  | 621,664,000 | 610,864,000
Industrial buildings, plant and production equipment [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 5,341,714,000 |
End of the year |  | 5,184,669,000 | 5,341,714,000
Vehicles, furniture and fixtures [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 67,073,000 |
End of the year |  | 67,000,000 | 67,073,000
Construction in progress [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 167,079,000 |
End of the year |  | 127,378,000 | 167,079,000
Spare parts and equipment [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 42,413,000 |
End of the year |  | 63,197,000 | 42,413,000
Gross carrying amount [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 13,246,680,000 | 12,498,672,000
Translation differences |  | (131,756,000) | 190,224,000
Additions |  | 317,568,000 | 524,651,000
Disposals / Consumptions |  | (35,909,000) | (14,484,000)
Transfers / Reclassifications |  | 25,399,000 | 37,332,000
End of the year |  | 13,421,982,000 | 13,246,680,000
Increase due to business combinations (*) | [1] |  | 10,285
Gross carrying amount [member] | Land and civil buildings [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 712,061,000 | 599,710,000
Translation differences |  | (5,628,000) | 5,493,000
Additions |  | 723,000 | 63,000
Disposals / Consumptions |  | (221,000) | (1,293,000)
Transfers / Reclassifications |  | 25,643,000 | 105,901,000
End of the year |  | 732,578,000 | 712,061,000
Increase due to business combinations (*) | [1] |  | 2,187
Gross carrying amount [member] | Industrial buildings, plant and production equipment [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 11,954,585,000 | 10,034,500,000
Translation differences |  | (117,977,000) | 178,598,000
Additions |  | 681,000 | 7,423,000
Disposals / Consumptions |  | (21,836,000) | (3,966,000)
Transfers / Reclassifications |  | 306,116,000 | 1,732,376,000
End of the year |  | 12,121,569,000 | 11,954,585,000
Increase due to business combinations (*) | [1] |  | 5,654
Gross carrying amount [member] | Vehicles, furniture and fixtures [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 370,542,000 | 346,486,000
Translation differences |  | (5,458,000) | 5,518,000
Additions |  | 1,245,000 | 1,252,000
Disposals / Consumptions |  | (10,269,000) | (7,319,000)
Transfers / Reclassifications |  | 21,200,000 | 22,161,000
End of the year |  | 377,260,000 | 370,542,000
Increase due to business combinations (*) | [1] |  | 2,444
Gross carrying amount [member] | Construction in progress [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 167,079,000 | 1,492,572,000
Translation differences |  | (2,269,000) | 284,000
Additions |  | 294,163,000 | 497,423,000
Disposals / Consumptions |  | (42,000) | (94,000)
Transfers / Reclassifications |  | (331,553,000) | (1,823,106,000)
End of the year |  | 127,378,000 | 167,079,000
Increase due to business combinations (*) | [1] |  |
Gross carrying amount [member] | Spare parts and equipment [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 42,413,000 | 25,404,000
Translation differences |  | (424,000) | 331,000
Additions |  | 20,756,000 | 18,490,000
Disposals / Consumptions |  | (3,541,000) | (1,812,000)
Transfers / Reclassifications |  | 3,993,000 |
End of the year |  | 63,197,000 | 42,413,000
Increase due to business combinations (*) | [1] |  |
Accumulated depreciation, amortisation and impairment [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 7,017,537,000 | 6,496,733,000
Translation differences |  | (78,463,000) | 120,838,000
Disposals / Consumptions |  | (29,967,000) | (10,372,000)
Transfers / Reclassifications |  | (498,000) | 8,869,000
Depreciation charge |  | 449,465,000 | 401,469,000
End of the year |  | 7,358,074,000 | 7,017,537,000
Accumulated depreciation, amortisation and impairment [member] | Land and civil buildings [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 101,197,000 | 89,274,000
Translation differences |  | (1,383,000) | 1,204,000
Disposals / Consumptions |  | (53,000) | (386,000)
Transfers / Reclassifications |  |  | 1,699,000
Depreciation charge |  | 11,153,000 | 9,406,000
End of the year |  | 110,914,000 | 101,197,000
Accumulated depreciation, amortisation and impairment [member] | Industrial buildings, plant and production equipment [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 6,612,871,000 | 6,125,552,000
Translation differences |  | (72,141,000) | 114,675,000
Disposals / Consumptions |  | (21,232,000) | (3,781,000)
Transfers / Reclassifications |  | 173,000 | 7,575,000
Depreciation charge |  | 417,229,000 | 368,850,000
End of the year |  | 6,936,900,000 | 6,612,871,000
Accumulated depreciation, amortisation and impairment [member] | Vehicles, furniture and fixtures [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  | 303,469,000 | 281,907,000
Translation differences |  | (4,939,000) | 4,959,000
Disposals / Consumptions |  | (8,682,000) | (6,205,000)
Transfers / Reclassifications |  | (671,000) | (405,000)
Depreciation charge |  | 21,083,000 | 23,213,000
End of the year |  | 310,260,000 | 303,469,000
Accumulated depreciation, amortisation and impairment [member] | Construction in progress [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  |  |
Translation differences |  |  |
Disposals / Consumptions |  |  |
Transfers / Reclassifications |  |  |
Depreciation charge |  |  |
End of the year |  |  |
Accumulated depreciation, amortisation and impairment [member] | Spare parts and equipment [member] |  |  |
Statement Line Items [Line Items] |  |  |
Beginning of the year |  |  |
Translation differences |  |  |
Disposals / Consumptions |  |  |
Transfers / Reclassifications |  |  |
Depreciation charge |  |  |
End of the year |  |  |
[1] | Related to Garrett LLC acquisition, see Note 25.

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