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INCOME TAXES (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Tax Disclosure [Abstract] |  |  |  |
Tax expense computed at statutory rates, see (*) below | [1] | $ 32,044 | $ 48,433 | $ 52,650
Effect of tax rate change on deferred tax liabilities, net(**) | [2] | (478) | (16,078) |
Effect of different tax rates in different jurisdictions and Preferred Enterprise Benefit |  | (23,150) | (33,298) | (4,772)
Gain on acquisition |  |  |  | (10,450)
Tax benefits for which deferred taxes were not recorded, see F below |  |  | (15,103) | (23,489)
Change in Valuation allowance, see F below |  | (962) | (82,772) | (6,212)
Permanent differences and other, net |  | (1,516) | (1,070) | (6,295)
Income tax expense (benefit) |  | $ 5,938 | $ (99,888) | $ 1,432
[1] | The tax expense (benefit) was computed based on Tower's regular corporate tax rate of 23% for 2018, 24% for 2017 and 25% for 2016.
[2] | Reduction in tax rates due to the U.S. Tax Reform and reduction in income tax rates in Japan.

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- Definition Represents the amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the gain on acquisition of a business. + References No definition available. + Details
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