GOODWILL AND INTANGIBLES (Changes in Carrying Amount of Goodwill by Reportable Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Changes in the carrying amount of goodwill by reportable segment
Balance at the beginning of the period	$ 665,257	$ 430,162
Additions and adjustments	20,212	246,746
Foreign currency translation	8,983	(11,651)
Balance at the end of the period	694,452	665,257
Americas Welding
Changes in the carrying amount of goodwill by reportable segment
Balance at the beginning of the period	492,187	279,983
Additions and adjustments	(2,899)	215,617
Foreign currency translation	8,312	(3,413)
Balance at the end of the period	497,600	492,187
International Welding
Changes in the carrying amount of goodwill by reportable segment
Balance at the beginning of the period	129,919	107,093
Additions and adjustments	23,111	31,288
Foreign currency translation	449	(8,462)
Balance at the end of the period	153,479	129,919
The Harris Products Group
Changes in the carrying amount of goodwill by reportable segment
Balance at the beginning of the period	43,151	43,086
Additions and adjustments	0	(159)
Foreign currency translation	222	224
Balance at the end of the period	$ 43,373	$ 43,151