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GOODWILL AND OTHER INTANGIBLE ASSETS (Details 2) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Amortized intangible assets:          
Gross Carrying Amount $ 79,690   $ 79,690   $ 85,506
Accumulated Amortization (43,600)   (43,600)   (45,461)
Net Value 36,090   36,090   40,045
Aggregate amortization expense 1,085 $ 1,369 2,166 $ 2,767  
Future estimated amortization expense          
2015 2,055   2,055    
2016 3,743   3,743    
2017 3,317   3,317    
2018 3,317   3,317    
2019 and thereafter 23,658   $ 23,658    
Weighted Average          
Amortized intangible assets:          
Amortization Period     9 years    
Patents          
Amortized intangible assets:          
Gross Carrying Amount 15,743   $ 15,743   17,001
Accumulated Amortization (15,711)   (15,711)   (16,852)
Net Value 32   $ 32   149
Patents | Weighted Average          
Amortized intangible assets:          
Amortization Period     7 years    
Acquired technology          
Amortized intangible assets:          
Gross Carrying Amount 32,891   $ 32,891   35,701
Accumulated Amortization (7,675)   (7,675)   (5,950)
Net Value 25,216   $ 25,216   29,751
Acquired technology | Weighted Average          
Amortized intangible assets:          
Amortization Period     15 years    
License agreements and other          
Amortized intangible assets:          
Gross Carrying Amount 31,056   $ 31,056   32,804
Accumulated Amortization (20,214)   (20,214)   (22,659)
Net Value $ 10,842   $ 10,842   $ 10,145
License agreements and other | Weighted Average          
Amortized intangible assets:          
Amortization Period     5 years