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CONSOLIDATED STATEMENTS OF INCOME - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Revenues:      
Total revenues $ 263,492 $ 266,391 $ 282,756
Cost of revenues:      
Total cost of revenues 167,615 172,354 200,261
Gross profit 95,877 94,037 82,495
Operating expenses:      
Research and development, net 30,184 33,023 28,014
Selling and marketing 21,488 22,706 23,759
General and administrative 18,633 17,024 19,861
Total operating expenses 70,305 72,753 71,634
Operating income 25,572 21,284 10,861
Financial expenses, net 2,617 4,298 4,307
Net income before taxes on income 22,955 16,986 6,554
Taxes on income (tax benefit) (13,583) (1,423) (247)
Net income $ 36,538 $ 18,409 $ 6,801
Total earnings per share:      
Basic $ 0.66 $ 0.34 $ 0.12
Diluted $ 0.65 $ 0.33 $ 0.12
Weighted average number of shares used in computing earnings per share:      
Basic 55,368,703 54,927,272 54,680,822
Diluted 56,030,976 55,752,642 54,851,967
Products [Member]      
Revenues:      
Total revenues $ 185,721 $ 173,966 $ 214,522
Cost of revenues:      
Total cost of revenues 122,071 121,147 153,167
Services [Member]      
Revenues:      
Total revenues 77,771 92,425 68,234
Cost of revenues:      
Total cost of revenues $ 45,544 $ 51,207 $ 47,094