INCOME TAXES (Deferred Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Tax Reconciliation Foreign Withholding Taxes	$ 0	$ (4,424)	$ 6,667
Deferred tax assets:
Tax loss and credit carry-forwards	64,712	60,756
Inventory	3,442	3,544
Other accruals	13,048	13,172
Employee benefits	24,532	22,963
Pension obligations	11,561	12,122
Other	3,401	3,739
Deferred tax assets, gross	120,696	116,296
Valuation allowance	(71,546)	(69,400)
Deferred tax assets, net	49,150	46,896
Deferred tax liabilities:
Property, plant and equipment	39,583	28,606
Intangible assets	16,695	10,950
Inventory	6,427	4,814
Pension obligations	25,171	19,346
Other	11,285	8,770
Deferred tax liabilities	99,161	72,486
Total deferred taxes	(50,011)	$ (25,590)
Tax loss carryforwards of certain subsidiaries that will expire in various years from 2020 through 2035	51,129
Tax loss carryforwards of certain subsidiaries for which there is no expiration date	213,724
Foreign Withholding Taxes Liability	$ 1,697