GOODWILL AND OTHER INTANGIBLE ASSETS, Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Components of definite and indefinite-lived intangible assets [Abstract]
Gross Carrying Amount	$ 97,886	$ 98,521
Accumulated Amortization	35,197	29,155
Net Carrying Amount	62,689	69,366
Amortization expense	6,400	6,700
Estimated amortization expense for intangible assets [Abstract]
2019	6,289
2020	6,263
2021	6,248
2022	4,877
2023	$ 3,621
Minimum [Member]
Other intangible assets [Abstract]
Other intangible assets amortization period	1 year
Maximum [Member]
Other intangible assets [Abstract]
Other intangible assets amortization period	16 years
Patents, Licenses and Technology [Member]
Components of definite and indefinite-lived intangible assets [Abstract]
Gross Carrying Amount	$ 38,845	39,218
Accumulated Amortization	18,281	14,926
Net Carrying Amount	20,564	24,292
Customer Relationships [Member]
Components of definite and indefinite-lived intangible assets [Abstract]
Gross Carrying Amount	44,588	44,704
Accumulated Amortization	14,193	11,478
Net Carrying Amount	30,395	33,226
Non-compete Agreements [Member]
Components of definite and indefinite-lived intangible assets [Abstract]
Gross Carrying Amount	2,683	2,711
Accumulated Amortization	2,683	2,711
Net Carrying Amount	0	0
Trademarks [Member]
Components of definite and indefinite-lived intangible assets [Abstract]
Gross Carrying Amount	11,770	11,888
Accumulated Amortization	40	40
Net Carrying Amount	$ 11,730	$ 11,848
Other Intangible Assets Excluding Trademarks [Member] | Minimum [Member]
Other intangible assets [Abstract]
Other intangible assets amortization period	1 year
Other Intangible Assets Excluding Trademarks [Member] | Maximum [Member]
Other intangible assets [Abstract]
Other intangible assets amortization period	16 years