RATIONALIZATION AND ASSET IMPAIRMENTS (Summary of Activity Related to Rationalization Liabilities by Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Activity related to the rationalization liabilities by segment
Balance at the beginning of the period	$ 13,622	$ 8,202
Payments and other adjustments	(21,513)	(18,213)
Charged to expense	10,881	23,633
Balance at the end of the period	2,990	13,622
Americas Welding [Member]
Activity related to the rationalization liabilities by segment
Balance at the beginning of the period	25
Payments and other adjustments	(25)	(4,712)
Charged to expense		4,737
Balance at the end of the period		25
International Welding [Member]
Activity related to the rationalization liabilities by segment
Balance at the beginning of the period	13,597	8,202
Payments and other adjustments	(21,488)	(13,501)
Charged to expense	10,881	18,896
Balance at the end of the period	$ 2,990	$ 13,597