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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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SEGMENT INFORMATION (Textual) (Details) $ in Thousands	3 Months Ended					12 Months Ended
SEGMENT INFORMATION (Textual) (Details) $ in Thousands	Mar. 31, 2016 segment	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) segment	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Financial information for the reportable segments
Restructuring charges						$ 13,719	$ 1,241
Number of operating segments (segments) \| segment	3					5
Percentage of total inventories valued using the LIFO method (as a percent)		40.00%				40.00%	40.00%	38.00%
Special items
Asset Impairment Charges						$ 6,239
Special items charge (Gain)						189,910	$ 51,186	$ 21,366
Goodwill, Impairment Loss						6,315
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments		$ (6,407)	$ (136,331)			(142,738)	(1,773)	(423)
Foreign Currency Transaction Loss, before Tax						4,334	17,665	8,081
Europe Welding
Financial information for the reportable segments
Restructuring charges						1,507	911
Special items
Special items charge (Gain)						1,507	904	2,045
Goodwill, Impairment Loss						0
Asia Pacific Welding
Financial information for the reportable segments
Restructuring charges						8,914	(184)
Special items
Other Asset Impairment Charges							32,742	4,444
Asset Impairment Charges				$ 32,448
Land Sales							(3,293)	705
Special items charge (Gain)						5,432	28,635	6,071
Restructuring Charges Net						5,421
Goodwill, Impairment Loss						0
South America Welding
Financial information for the reportable segments
Restructuring charges						0	582
Special items
Special items charge (Gain)			26,506			27,214	21,715	12,198
Goodwill, Impairment Loss						0
Foreign Currency Transaction Loss, before Tax					$ 17,665		21,133
The Harris Products Group
Special items
Special items charge (Gain)						0	0	0
Goodwill, Impairment Loss						0
North America Welding
Financial information for the reportable segments
Restructuring charges						3,298	(68)
Special items
Asset Impairment Charges						3,417
Special items charge (Gain)						155,757	(68)	1,052
Goodwill, Impairment Loss			$ 6,315			6,315
United States
Special items
EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToForeignCountries1						$ 175,049	$ 210,325	$ 260,195
Revenues \| Customer concentration risk \| Maximum
Special items
Percentage of concentration of credit risk not met other than separately disclosed						10.00%	10.00%	10.00%