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TAXES ON INCOME (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Tax Credit Carryforward [Line Items] |  |  |
Corporate tax rates | 23.00% | 23.00% | 23.00%
Tax benefit period | 12 years |  |
Net carry forward tax losses | $ 151,400 |  |
Subsidiaries [Member] |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Corporate tax rates | 21.00% |  |

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