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Intangible Assets (Tables)
 9 Months Ended
Sep. 30, 2017
Intangible Assets [Abstract]  
Intangible Assets Other Than Goodwill



 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



2017

 

2016

 

 

 

 

(in thousands)

Gross

 

Accumulated Amortization

 

Net

 

Gross

 

Accumulated Amortization

 

Net

 

Useful Life (in years)

 

Weighted Average Useful Life Remaining (in years)

Intangible assets with finite lives:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Customer relationships

$

 106,674 

 

$

 (56,538)

 

$

 50,136 

 

$

 99,067 

 

$

 (46,252)

 

$

 52,815 

 

1-14

 

6

Acquired technology

 

 55,148 

 

 

 (37,324)

 

 

 17,824 

 

 

 52,881 

 

 

 (27,543)

 

 

 25,338 

 

1-16

 

4

Trade names

 

 27,764 

 

 

 (16,322)

 

 

 11,442 

 

 

 28,110 

 

 

 (16,015)

 

 

 12,095 

 

1-8

 

5

Patent costs

 

 17,135 

 

 

 (6,794)

 

 

 10,341 

 

 

 16,263 

 

 

 (5,873)

 

 

 10,390 

 

1-20

 

9

Trade secrets

 

 19,443 

 

 

 (11,016)

 

 

 8,427 

 

 

 19,134 

 

 

 (9,383)

 

 

 9,751 

 

7

 

4

Acquired patents

 

 16,655 

 

 

 (11,556)

 

 

 5,099 

 

 

 16,965 

 

 

 (10,674)

 

 

 6,291 

 

1-6

 

4

Other

 

 25,683 

 

 

 (22,320)

 

 

 3,363 

 

 

 23,431 

 

 

 (18,610)

 

 

 4,821 

 

2-4

 

2

Total intangible assets

$

 268,502 

 

$

 (161,870)

 

$

 106,632 

 

$

 255,851 

 

$

 (134,350)

 

$

 121,501 

 

1-20

 

4