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Research And Development Expenses, Net
12 Months Ended
Dec. 31, 2018
Research and Development Expense [Abstract]  
Research And Development Expenses, Net RESEARCH AND DEVELOPMENT, NET

 
Year ended December 31,
 
2018
 
2017
 
2016
Total expenses
$
317,690

 
$
301,382

 
$
291,749

Less - grants and participations
(30,338
)
 
(36,322
)
 
(35,957
)
 
$
287,352

 
$
265,060

 
$
255,792