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RATIONALIZATION AND ASSET IMPAIRMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Rationalization and asset impairment charges (gains)	$ 630	$ 23,238	$ 4,793	$ 29,759
Restructuring liability	12,353		12,353		$ 13,622
Americas Welding [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization and asset impairment charges (gains)		22,673		23,863
Restructuring liability	0		0		25
International Welding [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization and asset impairment charges (gains)	630	$ 565	4,793	$ 5,896
Restructuring liability	12,353		12,353		$ 13,597
Restructure Plans 2020 [Member] | International Welding [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring liability	$ 12,353		$ 12,353

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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Amount of restructuring charges, remediation cost, and asset impairment loss.

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-Topic 220
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-Section S99
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