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GOODWILL AND INTANGIBLES (Changes in Carrying Amount of Goodwill by Reportable Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2015 | Dec. 31, 2016 | Dec. 31, 2015
Changes in the carrying amount of goodwill by reportable segment |  |  |
Balance at the beginning of the period |  | $ 187,504 | $ 180,127
Additions and adjustments |  | 42,886 | 23,245
Impairment charge |  |  | (6,315)
Foreign currency translation |  | 1,529 | (9,553)
Balance at the end of the period |  | 231,919 | 187,504
Americas Welding [Member] |  |  |
Changes in the carrying amount of goodwill by reportable segment |  |  |
Balance at the beginning of the period |  | 152,335 | 138,192
Additions and adjustments |  | 43,217 | 19,700
Impairment charge | $ (6,315) |  | 0
Foreign currency translation |  | 826 | (5,557)
Balance at the end of the period |  | 196,378 | 152,335
International Welding [Member] |  |  |
Changes in the carrying amount of goodwill by reportable segment |  |  |
Balance at the beginning of the period |  | 23,345 | 28,850
Additions and adjustments |  | (30) | 3,846
Impairment charge |  |  | (6,315)
Foreign currency translation |  | 349 | (3,036)
Balance at the end of the period |  | 23,664 | 23,345
The Harris Products Group |  |  |
Changes in the carrying amount of goodwill by reportable segment |  |  |
Balance at the beginning of the period |  | 11,824 | 13,085
Additions and adjustments |  | (301) | (301)
Impairment charge |  |  | 0
Foreign currency translation |  | 354 | (960)
Balance at the end of the period |  | $ 11,877 | $ 11,824

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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