GOODWILL AND OTHER INTANGIBLE ASSETS (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Amortized intangible assets:
Gross Carrying Amount	$ 79,427		$ 79,427		$ 85,506
Accumulated Amortization	(44,299)		(44,299)		(45,461)
Net Value	35,128		35,128		40,045
Aggregate amortization expense	1,071	$ 1,283	3,237	$ 4,050
Future estimated amortization expense
2015	1,025		1,025
2016	3,747		3,747
2017	3,323		3,323
2018	3,322		3,322
2019 and thereafter	23,711		$ 23,711
Weighted Average
Amortized intangible assets:
Amortization Period			8 years 3 months 18 days
Patents
Amortized intangible assets:
Gross Carrying Amount	15,778		$ 15,778		17,001
Accumulated Amortization	(15,748)		(15,748)		(16,852)
Net Value	30		$ 30		149
Patents | Weighted Average
Amortized intangible assets:
Amortization Period			1 month 6 days
Acquired technology
Amortized intangible assets:
Gross Carrying Amount	32,967		$ 32,967		35,701
Accumulated Amortization	(8,243)		(8,243)		(5,950)
Net Value	24,724		$ 24,724		29,751
Acquired technology | Weighted Average
Amortized intangible assets:
Amortization Period			15 years
License agreements and other
Amortized intangible assets:
Gross Carrying Amount	30,682		$ 30,682		32,804
Accumulated Amortization	(20,308)		(20,308)		(22,659)
Net Value	$ 10,374		$ 10,374		$ 10,145
License agreements and other | Weighted Average
Amortized intangible assets:
Amortization Period			5 years 4 months 24 days