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TAXES ON INCOME (Reconciliation of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Income Tax Disclosure [Abstract] |  |
Uncertain tax positions, beginning of year | $ 58,560 | $ 43,984
Decreases in tax positions for prior years | (3,443) |
Increases in tax positions for prior years |  | 5,121
Increases in tax positions for current year | 15,749 | 13,353
Settlements | 0 | (3,471)
Expiry of the statute of limitations | (5,982) | (427)
Uncertain tax positions, end of year | $ 64,884 | $ 58,560

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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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