SEGMENT INFORMATION (Net sales and long lived assets by geographic areas) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of geographical areas [line items]
Net sales	$ 9,700,296	$ 7,223,975	$ 7,877,449
Non-current assets	6,442,332	4,978,534	5,095,772
Mexico
Disclosure of geographical areas [line items]
Net sales	5,629,267	4,491,761	4,395,273
Non-current assets	4,042,914	4,108,539	4,166,148
Southern region
Disclosure of geographical areas [line items]
Net sales	2,316,444	1,867,622	2,572,723
Non-current assets	643,411	634,048	682,705
Other markets
Disclosure of geographical areas [line items]
Net sales	1,754,585	864,592	909,453
Non-current assets	$ 1,756,007	$ 235,947	$ 246,919

The income arising in the course of an entity's ordinary activities. Income is increases in economic benefits during the accounting period in the form of inflows or enhancements of assets or decreases of liabilities that result in an increase in equity, other than those relating to contributions from equity participants.

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+ Details