The amortization period of certain tax benefits including purchased know-how and patents.

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Effective Income Tax Rate Reconciliation, At Federal And State Statutory Blended Income Tax Rate

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The number of annual installments for deduction of public offering expenses.

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Operating loss carryforwards have no expiration date

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Amount of deferred tax liability not recognized because of the exceptions to comprehensive recognition of deferred taxes related to undistributed earnings of foreign subsidiaries.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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TAXES ON INCOME (Narrative) (Details) $ in Thousands	12 Months Ended
TAXES ON INCOME (Narrative) (Details) $ in Thousands	Dec. 31, 2020 USD ($) installment	Dec. 31, 2019 USD ($)	Dec. 31, 2018
Income Tax Examination [Line Items]
Tax rate	23.00%	23.00%	23.00%
Federal and state income taxes rate	25.00%
Tax loss carry-forwards	$ 198,050
Tax loss carry-forwards that have no expiration date	82,405
Accrued interest related to income tax uncertainties	$ 8,453	$ 3,889
Encouragement of Industry
Income Tax Examination [Line Items]
Number of annual installments for deduction of public offering expenses \| installment	3
Amortization period of purchased know-how and patents	8 years
Non-Israeli Subsidiaries
Income Tax Examination [Line Items]
Undistributed earnings	$ 941,710
Unrecognized deferred tax liability	$ 124,742
From 2015 through 2016 \| The election
Income Tax Examination [Line Items]
Tax rate	16.00%
2017 and thereafter \| The election
Income Tax Examination [Line Items]
Tax rate	12.00%
2020 \| Income not eligible for Preferred Enterprise benefits
Income Tax Examination [Line Items]
Tax rate	23.00%
2012
Income Tax Examination [Line Items]
Tax rate	20.00%