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INTANGIBLE ASSETS AND GOODWILL Intangible Assets (Notes)
6 Months Ended
Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
INTANGIBLE ASSETS AND GOODWILL
INTANGIBLE ASSETS AND GOODWILL

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 (in thousands):
 
June 30, 2017
 
December 31, 2016
 
 Gross
 
Accumulated Amortization
 
 Net
 
 Gross
 
Accumulated Amortization
 
Net
Completed technologies and patents
$
58,353

 
$
(42,916
)
 
$
15,437

 
$
57,994

 
$
(38,657
)
 
$
19,337

Customer relationships
54,805

 
(51,935
)
 
2,870

 
54,597

 
(51,002
)
 
3,595

Trade names
1,346

 
(1,346
)
 

 
1,346

 
(1,346
)
 

Capitalized software costs
4,911

 
(4,911
)
 

 
4,911

 
(4,911
)
 

Total
$
119,415

 
$
(101,108
)
 
$
18,307

 
$
118,848

 
$
(95,916
)
 
$
22,932

Amortization expense related to all intangible assets in the aggregate was $2.3 million and $2.7 million, respectively, for the three months ended June 30, 2017 and 2016, and $4.6 million and $5.5 million, respectively, for the six months ended June 30, 2017 and 2016. The Company expects amortization of acquired intangible assets to be $4.6 million for the remainder of 2017, $9.3 million in 2018, and $4.4 million in 2019.

The acquisition of Orad in 2015 resulted in goodwill of $32.6 million as of June 30, 2017 and December 31, 2016.