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RATIONALIZATION AND ASSET IMPAIRMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Rationalization and asset impairment charges (gains)	$ 3,484	$ 6,257	$ 8,277	$ 36,016
Restructuring liability	6,791		6,791		$ 13,622
Americas Welding [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization and asset impairment charges (gains)		3,856		27,719
Restructuring liability	0		0		25
International Welding [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization and asset impairment charges (gains)	3,484	$ 2,401	8,277	$ 8,297
Restructuring liability	6,791		6,791		$ 13,597
Restructure Plans 2020 [Member] | International Welding [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring liability	$ 6,791		$ 6,791

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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://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
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Amount of restructuring charges, remediation cost, and asset impairment loss.

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-Topic 220
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