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CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Schedule of Revenue by geographic areas) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues $ 279,551 $ 197,543 $ 235,133
Latin America [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 143,491 100,443 110,825
APAC [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 47,094 47,843 51,983
North America [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 54,728 28,242 41,951
EMEA [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues $ 34,238 $ 21,015 $ 30,374