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CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Schedule of Revenue by geographic areas) (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues $ 121,794 $ 133,882
Latin America [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 36,528 54,670
Asia and Asia Pacific [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 27,432 17,240
United States [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 46,076 45,773
Europe [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues $ 11,758 $ 16,199