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SIGNIFICANT ACCOUNTING POLICIES (Schedule of Weighted Average Assumptions Used to Calculate Fair Value of Company's Stock Options) (Details) - Employee Stock Option [Member]
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Risk free interest rate 1.86% 2.78% 1.66%
Dividend yields 0.00% 0.00% 0.00%
Expected volatility 26.00% 30.00% 32.00%
Weighted average expected term from grant date (in years) 3 years 9 months 29 days 3 years 9 months 10 days 3 years 9 months 18 days