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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Statement of comprehensive income [abstract] |  |  |
Profit (Loss) for the year | $ 1,022,927 | $ 706,929 | $ 59,779
Items that may be reclassified subsequently to profit or loss: |  |  |
Currency translation adjustment | (95,462) | (141,665) | (409,767)
Currency translation adjustment from participation in non-consolidated companies | (8,931) | 53,858 | (230,774)
Changes in the fair value of derivatives classified as cash flow hedges and available-for-sale financial instruments | 735 | 641 | 1,277
Income tax relating to cash flow hedges and available-for-sale financial instruments | (107) | (192) | (371)
Other comprehensive income items | (96) | (1,542) | 0
Other comprehensive income items from participation in non-consolidated companies | 191 | 1,054 | 973
Items that will not be reclassified subsequently to profit or loss: |  |  |
Remeasurement of post employment benefit obligations | (15,068) | (14,735) | 5,277
Income tax relating to remeasurement of post employment benefit obligations | 4,916 | 2,571 | (1,946)
Remeasurement of post employment benefit obligations from participation in non-consolidated companies | 3,954 | (15,817) | (5,113)
Other comprehensive loss for the year, net of tax | (109,868) | (115,827) | (640,444)
Total comprehensive income (loss) for the year | 913,059 | 591,102 | (580,665)
Attributable to: |  |  |
Owners of the parent | 815,434 | 534,827 | (457,750)
Non-controlling interest | $ 97,625 | $ 56,275 | $ (122,915)

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