GOODWILL AND OTHER INTANGIBLE ASSETS (Summary of Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Amortized intangible assets:
Gross Carrying Amount	$ 138,614		$ 138,614		$ 130,112
Accumulated Amortization	(43,160)		(43,160)		(35,623)
Net Value	95,454		95,454		94,489
Aggregate amortization expense	2,506	$ 2,749	4,935	$ 4,235
Future estimated amortization expense
2017	5,123		5,123
2018	10,287		10,287
2019	10,109		10,109
2020	8,938		8,938
2021 and thereafter	60,997		$ 60,997
Weighted Average
Amortized intangible assets:
Amortization Period			11 years 8 months 12 days
Patents
Amortized intangible assets:
Gross Carrying Amount	7,436		$ 7,436		6,859
Accumulated Amortization	(7,419)		(7,419)		(6,839)
Net Value	17		$ 17		20
Patents | Weighted Average
Amortized intangible assets:
Amortization Period			2 months 12 days
Technology
Amortized intangible assets:
Gross Carrying Amount	45,244		$ 45,244		41,731
Accumulated Amortization	(12,397)		(12,397)		(10,040)
Net Value	32,847		$ 32,847		31,691
Technology | Weighted Average
Amortized intangible assets:
Amortization Period			14 years 10 months 24 days
Customer relationships
Amortized intangible assets:
Gross Carrying Amount	66,543		$ 66,543		63,006
Accumulated Amortization	(10,021)		(10,021)		(6,696)
Net Value	56,522		$ 56,522		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	19,391		$ 19,391		18,516
Accumulated Amortization	(13,322)		(13,322)		(12,048)
Net Value	$ 6,069		$ 6,069		$ 6,468
License agreements and other | Weighted Average
Amortized intangible assets:
Amortization Period			7 years 9 months 18 days