SEGMENT INFORMATION - Reconciliation of Segment Assets to Consolidated Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
SEGMENT INFORMATION
Total Consolidated Assets	$ 3,893,630	$ 3,777,577
Total Segment Assets
SEGMENT INFORMATION
Total Consolidated Assets	4,269,538	4,139,752
Corporate Assets
SEGMENT INFORMATION
Total Consolidated Assets	39,375	41,033
LIFO reserve not allocated to segments
SEGMENT INFORMATION
Total Consolidated Assets	(145,501)	(138,589)
Eliminations
SEGMENT INFORMATION
Total Consolidated Assets	(269,782)	(264,619)
Americas Welding \| Total Segment Assets
SEGMENT INFORMATION
Total Consolidated Assets	2,629,479	2,464,376
International Welding \| Total Segment Assets
SEGMENT INFORMATION
Total Consolidated Assets	1,162,497	1,244,117
The Harris Products Group \| Total Segment Assets
SEGMENT INFORMATION
Total Consolidated Assets	$ 477,562	$ 431,259

Amount of asset recognized for present right to economic benefit.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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