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RATIONALIZATION AND ASSET IMPAIRMENTS (Textual) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Rationalization and Asset Impairments
Restructuring, Settlement and Impairment Provisions	$ 11,542	$ 0	$ 21,717	$ 0
Business Exit Costs			21,091
Restructuring Reserve	17,417		17,417		$ 6,803
Restructuring and Related Cost, Expected Cost	5,000		5,000
International Welding 2018 Plans [Member]
Rationalization and Asset Impairments
Restructuring Reserve	14,043		14,043
International Welding 2017 Plans [Member]
Rationalization and Asset Impairments
Restructuring Reserve	$ 246		$ 246