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CURRENT AND DEFERRED TAXES (Details 8) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Major components of tax expense (income) [abstract]      
Aggregate deferred taxation of components of other comprehensive income $ (2,555) $ (33,774) $ (17,192)
Aggregate deferred taxation related to items charged to net equity   $ (807)