INVESTMENTS IN NON-CONSOLIDATED COMPANIES (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of interests in other entities [Abstract]
Investments in non-consolidated companies, beginning balance	$ 418,379	$ 250,412
Equity in earnings (losses) of non-consolidated companies	68,115	14,624
Other comprehensive income	(4,786)	39,077
Acquisition of additional shares (note 3)	0	114,449	$ 9,600
Dividends from non-consolidated companies	(3,360)	(183)
Investments in non-consolidated companies, ending balance	$ 478,348	$ 418,379	$ 250,412

The cash inflow representing dividends received from investments that are accounted for using the equity method, classified as investing activities. [Refer: Investments accounted for using equity method; Dividends received]

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The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]]

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The cash outflow for the purchase of interests in investments accounted for using the equity method. [Refer: Investments accounted for using equity method]

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The entity's share of the profit (loss) of associates and joint ventures accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Joint ventures [member]; Profit (loss)]

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The entity's share of the total comprehensive income of associates and joint ventures accounted for using the equity method. [Refer: Associates [member]; Joint ventures [member]; Investments accounted for using equity method]

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Disclosure of interests in other entities [Abstract]

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