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Intangible Assets
 9 Months Ended
Sep. 30, 2016
Goodwill And Intangible Assets Disclosure [Abstract]  
Intangible Assets

NOTE 6. INTANGIBLE ASSETS

Intangible assets consisted of the following (in thousands):

 

 

September 30, 2016

 

 

December 31, 2015

 

 

Gross

 

 

Accumulated

 

 

Intangible

 

 

Gross

 

 

Accumulated

 

 

Intangible

 

 

Assets

 

 

Amortization

 

 

Assets, Net

 

 

Assets

 

 

Amortization

 

 

Assets, Net

 

Customer lists acquired

$

28,973

 

 

$

(22,412

)

 

$

6,561

 

 

$

28,123

 

 

$

(20,859

)

 

$

7,264

 

Technology and patents

 

35,112

 

 

 

(16,148

)

 

 

18,964

 

 

 

24,358

 

 

 

(14,222

)

 

 

10,136

 

Trade names and

   trademarks

 

3,546

 

 

 

(2,050

)

 

 

1,496

 

 

 

3,190

 

 

 

(1,358

)

 

 

1,832

 

Total intangible assets

$

67,631

 

 

$

(40,610

)

 

$

27,021

 

 

$

55,671

 

 

$

(36,439

)

 

$

19,232

 

 

Amortization expense was $3.8 million for both the nine months ended September 30, 2016 and 2015.

Based on the recorded intangibles at September 30, 2016, estimated amortization expense is expected to be $1.3 million during the remainder of 2016, $5.0 million in 2017, $4.5 million in 2018, $4.1 million in 2019, $3.9 million in 2020 and $5.2 million thereafter.