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Goodwill and Intangible Assets, Net
3 Months Ended
Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets, Net
Goodwill and Intangible Assets, Net
Goodwill
Changes in the carrying amount of goodwill were as follows:
(In thousands)
 
Balance at December 31, 2016
$
43,052

Foreign exchange effects
(4
)
Balance at March 31, 2017
$
43,048

 

Intangible Assets, Net
The components of intangible assets, net were as follows:
 
March 31, 2017
 
December 31, 2016
(In thousands)
Gross (1)
 
Accumulated
Amortization (1)
 
Net
 
Gross (1)
 
Accumulated
Amortization (1)
 
Net
Distribution rights
$
302

 
$
(119
)
 
$
183

 
$
302

 
$
(119
)
 
$
183

Patents
11,345

 
(3,988
)
 
7,357

 
12,038

 
(4,775
)
 
7,263

Trademarks and trade names
2,396

 
(1,371
)
 
1,025

 
2,400

 
(1,310
)
 
1,090

Developed and core technology
12,578

 
(4,569
)
 
8,009

 
12,585

 
(4,068
)
 
8,517

Capitalized software development costs
142

 
(24
)
 
118

 
142

 
(5
)
 
137

Customer relationships
27,654

 
(17,011
)
 
10,643

 
27,703

 
(16,344
)
 
11,359

Total intangible assets, net
$
54,417

 
$
(27,082
)
 
$
27,335

 
$
55,170

 
$
(26,621
)
 
$
28,549

 
(1) 
This table excludes the gross value of fully amortized intangible assets totaling $11.2 million and $10.2 million at March 31, 2017 and December 31, 2016, respectively.
Amortization expense is recorded in selling, general and administrative expenses, except amortization expense related to capitalized software development costs which is recorded in cost of sales. Amortization expense by income statement caption was as follows:
 
Three Months Ended March 31,
(In thousands)
2017
 
2016
Cost of sales
$
19

 
$
21

Selling, general and administrative expenses
1,581

 
1,533

Total amortization expense
$
1,600

 
$
1,554


 
Estimated future annual amortization expense related to our intangible assets at March 31, 2017, is as follows:
(In thousands)
 
2017 (remaining 9 months)
$
4,797

2018
6,364

2019
6,285

2020
5,196

2021
1,782

Thereafter
2,911

Total
$
27,335