TAXES ON INCOME (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Earnings (loss) before taxes on income [Abstract]
Earnings (loss) before taxes on income	$ 58,337	$ 42,531
Federal [Abstract]
Current	0	0
Deferred	12,490	8,509
State and local [Abstract]
Current	1,459	807
Deferred	0	337
Foreign - current	(69)	212
Total Provision for taxes on income	13,880	9,865
United States [Member]
Earnings (loss) before taxes on income [Abstract]
Earnings (loss) before taxes on income	58,752	43,544
Foreign [Member]
Earnings (loss) before taxes on income [Abstract]
Earnings (loss) before taxes on income	$ (415)	$ (1,013)

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