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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 |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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