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SEGMENT GEOGRAPHICAL INFORMATION AND MAJOR CUSTOMERS (Details 1) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Revenue, Major Customer [Line Items]      
Total revenues $ 201,646 $ 176,030 $ 164,304
ISRAEL      
Revenue, Major Customer [Line Items]      
Total revenues 58,079 36,401 29,198
Europe [Member]      
Revenue, Major Customer [Line Items]      
Total revenues 23,642 29,084 37,409
UNITED STATES      
Revenue, Major Customer [Line Items]      
Total revenues 100,470 92,577 82,470
JAPAN      
Revenue, Major Customer [Line Items]      
Total revenues 11,226 10,092 11,299
Other [Member]      
Revenue, Major Customer [Line Items]      
Total revenues $ 8,229 $ 7,876 $ 3,928