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INTANGIBLE ASSETS (Tables)
 3 Months Ended
Mar. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Amortization of identifiable intangible assets
Amortizing identifiable intangible assets related to the Company’s acquisitions or capitalized costs of internally developed or externally purchased software that form the basis for the Company’s products consisted of the following at March 31, 2014 and December 31, 2013 (in thousands):
 
March 31, 2014
 
December 31, 2013
 
 Gross
 
Accumulated Amortization
 
 Net
 
 Gross
 
Accumulated Amortization
 
Net
Completed technologies and patents
$
52,615

 
$
(52,615
)
 
$
—

 
$
52,711

 
$
(52,659
)
 
$
52

Customer relationships
49,610

 
(46,020
)
 
3,590

 
49,627

 
(45,557
)
 
4,070

Trade names
5,973

 
(5,973
)
 
—

 
5,976

 
(5,976
)
 
—

Capitalized software costs
5,944

 
(5,855
)
 
89

 
5,944

 
(5,806
)
 
138

Total
$
114,142

 
$
(110,463
)
 
$
3,679

 
$
114,258

 
$
(109,998
)
 
$
4,260