GOODWILL AND OTHER INTANGIBLE ASSETS (Summary of Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Amortized intangible assets:
Gross Carrying Amount	$ 312,508	$ 146,103
Accumulated Amortization	(57,604)	(50,643)
Net Value	254,904	95,460
Aggregate amortization expense	15,455	10,339	$ 9,317
Future estimated amortization expense
2019	21,504
2020	22,984
2021	22,088
2022	21,837
2023 and thereafter	$ 166,491
Weighted Average
Amortized intangible assets:
Amortization Period	13 years 2 months 12 days
Patents
Amortized intangible assets:
Gross Carrying Amount	$ 5,427	7,819
Accumulated Amortization	(5,294)	(7,806)
Net Value	$ 133	13
Patents | Weighted Average
Amortized intangible assets:
Amortization Period	1 year 7 months 6 days
Acquired technology
Amortized intangible assets:
Gross Carrying Amount	$ 92,389	47,571
Accumulated Amortization	(18,304)	(14,624)
Net Value	$ 74,085	32,947
Acquired technology | Weighted Average
Amortized intangible assets:
Amortization Period	13 years 6 months
Customer relationships
Amortized intangible assets:
Gross Carrying Amount	$ 179,597	68,886
Accumulated Amortization	(20,439)	(13,401)
Net Value	$ 159,158	55,485
Customer relationships | Weighted Average
Amortized intangible assets:
Amortization Period	14 years 3 months 18 days
Trademarks and trade names
Amortized intangible assets:
Gross Carrying Amount	$ 21,243	6,965
Accumulated Amortization	(5,914)	(4,485)
Net Value	$ 15,329	2,480
Trademarks and trade names | Weighted Average
Amortized intangible assets:
Amortization Period	6 years 10 months 24 days
License agreements and other
Amortized intangible assets:
Gross Carrying Amount	$ 13,852	14,862
Accumulated Amortization	(7,653)	(10,327)
Net Value	$ 6,199	$ 4,535
License agreements and other | Weighted Average
Amortized intangible assets:
Amortization Period	12 years