GOODWILL AND OTHER INTANGIBLE ASSETS (Summary of Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Amortized intangible assets:
Gross Carrying Amount	$ 146,103	$ 130,112
Accumulated Amortization	(50,643)	(35,623)
Net Value	95,460	94,489
Aggregate amortization expense	10,339	9,317	$ 4,246
Future estimated amortization expense
2018	11,024
2019	10,838
2020	9,621
2021	9,430
2022 and thereafter	$ 54,547
Weighted Average
Amortized intangible assets:
Amortization Period	11 years 9 months 18 days
Patents
Amortized intangible assets:
Gross Carrying Amount	$ 7,819	6,859
Accumulated Amortization	(7,806)	(6,839)
Net Value	$ 13	20
Patents | Weighted Average
Amortized intangible assets:
Amortization Period	2 months 12 days
Technology
Amortized intangible assets:
Gross Carrying Amount	$ 47,571	41,731
Accumulated Amortization	(14,624)	(10,040)
Net Value	$ 32,947	31,691
Technology | Weighted Average
Amortized intangible assets:
Amortization Period	15 years
Customer relationships
Amortized intangible assets:
Gross Carrying Amount	$ 68,886	63,006
Accumulated Amortization	(13,401)	(6,696)
Net Value	$ 55,485	56,310
Customer relationships | Weighted Average
Amortized intangible assets:
Amortization Period	12 years 2 months 12 days
License agreements and other
Amortized intangible assets:
Gross Carrying Amount	$ 21,827	18,516
Accumulated Amortization	(14,812)	(12,048)
Net Value	$ 7,015	$ 6,468
License agreements and other | Weighted Average
Amortized intangible assets:
Amortization Period	7 years 7 months 6 days