GOODWILL AND OTHER INTANGIBLE ASSETS (Summary of Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Amortized intangible assets:
Gross Carrying Amount	$ 131,150		$ 130,112
Accumulated Amortization	(38,159)		(35,623)
Net Value	92,991		94,489
Aggregate amortization expense	2,429	$ 1,486
Future estimated amortization expense
2017	7,334
2018	9,755
2019	9,587
2020	8,476
2021 and thereafter	$ 57,839
Weighted Average
Amortized intangible assets:
Amortization Period	11 years 8 months 12 days
Patents
Amortized intangible assets:
Gross Carrying Amount	$ 6,946		6,859
Accumulated Amortization	(6,928)		(6,839)
Net Value	$ 18		20
Patents | Weighted Average
Amortized intangible assets:
Amortization Period	2 months 12 days
Technology
Amortized intangible assets:
Gross Carrying Amount	$ 42,263		41,731
Accumulated Amortization	(10,874)		(10,040)
Net Value	$ 31,389		31,691
Technology | Weighted Average
Amortized intangible assets:
Amortization Period	14 years 10 months 24 days
Customer relationships
Amortized intangible assets:
Gross Carrying Amount	$ 63,542		63,006
Accumulated Amortization	(8,144)		(6,696)
Net Value	$ 55,398		56,310
Customer relationships | Weighted Average
Amortized intangible assets:
Amortization Period	11 years 9 months 18 days
License agreements and other
Amortized intangible assets:
Gross Carrying Amount	$ 18,399		18,516
Accumulated Amortization	(12,213)		(12,048)
Net Value	$ 6,186		$ 6,468
License agreements and other | Weighted Average
Amortized intangible assets:
Amortization Period	8 years