GOODWILL AND INTANGIBLES (Gross and Net Intangible Assets Other Than Goodwill) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2016
Gross intangible assets other than goodwill by asset class
Finite-Lived Assets - Gross Amount		$ 193,138	$ 210,332
Finite-Lived Assets - Accumulated Amortization		88,338	97,357
Trademarks and trade names
Gross intangible assets other than goodwill by asset class
Finite-Lived Assets - Gross Amount		36,754	44,372
Finite-Lived Assets - Accumulated Amortization		18,243	20,648
Indefinite Lived Assets		15,919	17,113
Customer relationships
Gross intangible assets other than goodwill by asset class
Finite-Lived Assets - Gross Amount		77,590	85,816
Finite-Lived Assets - Accumulated Amortization		33,932	39,033
Patents
Gross intangible assets other than goodwill by asset class
Finite-Lived Assets - Gross Amount		24,208	28,073
Finite-Lived Assets - Accumulated Amortization		6,884	11,467
Other
Gross intangible assets other than goodwill by asset class
Finite-Lived Assets - Gross Amount		54,586	52,071
Finite-Lived Assets - Accumulated Amortization		29,279	$ 26,209
Finite-Lived Intangible Assets [Member]
Gross intangible assets other than goodwill by asset class
Asset Impairment Charges	$ 3,417
Americas Welding [Member]
Gross intangible assets other than goodwill by asset class
Asset Impairment Charges		$ 3,417