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RATIONALIZATION AND ASSET IMPAIRMENTS (Textual) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Rationalization and Asset Impairments
Restructuring, Settlement and Impairment Provisions	$ 1,495	$ 2,636	$ 6,337	$ 24,353
Business Exit Costs			5,268
Restructuring Reserve	2,431		2,431		$ 11,192
International Welding 2018 Plans [Member]
Rationalization and Asset Impairments
Restructuring Reserve	528		528
International Welding
Rationalization and Asset Impairments
Restructuring, Settlement and Impairment Provisions	1,495	$ 2,636	4,621	$ 24,353
International Welding 2019 Plans [Member]
Rationalization and Asset Impairments
Restructuring Reserve	$ 1,903		$ 1,903