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CUSTOMERS, GEOGRAPHIC AND SEGMENTS INFORMATION (Schedule of Revenues and Long-lived Assets by Geographic Areas) (Details) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues $ 163,033 $ 161,926  
Long-lived assets 92,139   94,727
Consolidated Revenues [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Concentration risk percentage 17.00% 12.00%  
The number of customers accounting for revenues concentration risk 1 1  
Israel [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Long-lived assets 69,438   71,283
United States [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 48,190 54,823  
Long-lived assets 4,486   4,174
Latin America [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 47,448 54,719  
Long-lived assets 8,641   9,693
Asia and Asia Pacific [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 50,830 37,468  
Africa [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 5,104 4,857  
Europe [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 11,461 10,059  
Long-lived assets 9,083   9,059
Other [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Long-lived assets $ 491   $ 518