GOODWILL AND INTANGIBLES (Changes in Carrying Amount of Goodwill by Reportable Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Changes in the carrying amount of goodwill by reportable segment
Balance at the beginning of the period	$ 430,162	$ 335,593
Additions and adjustments	246,746	103,836
Foreign currency translation	(11,651)	(9,267)
Balance at the end of the period	665,257	430,162
Americas Welding
Changes in the carrying amount of goodwill by reportable segment
Balance at the beginning of the period	279,983	279,810
Additions and adjustments	215,617	0
Foreign currency translation	(3,413)	173
Balance at the end of the period	492,187	279,983
International Welding
Changes in the carrying amount of goodwill by reportable segment
Balance at the beginning of the period	107,093	39,060
Additions and adjustments	31,288	77,317
Foreign currency translation	(8,462)	(9,284)
Balance at the end of the period	129,919	107,093
The Harris Products Group
Changes in the carrying amount of goodwill by reportable segment
Balance at the beginning of the period	43,086	16,723
Additions and adjustments	(159)	26,519
Foreign currency translation	224	(156)
Balance at the end of the period	$ 43,151	$ 43,086