Annual report pursuant to Section 13 and 15(d)

Intangible Assets, Net and Goodwill

v3.10.0.1
Intangible Assets, Net and Goodwill
 12 Months Ended
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets, Net and Goodwill
ible assets that are determined to have finite lives include patents, purchased technology and customer relationships and are amortized over their estimated useful lives, which range from approximately 3 to 10 years. Goodwill and intangible assets with indefinite useful lives, including trademarks and trade names, are not amortized but are periodically evaluated for impairment. At December 31, 2018 and 2017, the Company determined that its goodwill and intangible assets were not impaired.
Intangible assets
The following table summarizes the Company's identifiable Intangible assets, net balance:
 
 
December 31, 
(in thousands)
 
2018
 
2017
Intangible assets subject to amortization:
 
 
 
 
Patents and purchased technology
 
$
14,198

 
$
14,198

Customer relationships
 
23,000

 
23,000

Gross carrying amount
 
37,198

 
37,198

Accumulated amortization:
 
 
 
 
Patents and purchased technology
 
(11,981
)
 
(10,651
)
Customer relationships
 
(14,063
)
 
(12,413
)
Accumulated amortization
 
(26,044
)
 
(23,064
)
Net carrying amount
 
11,154

 
14,134

Intangible assets not subject to amortization
 
115,421

 
115,421

Intangible assets, net
 
$
126,575

 
$
129,555


Amortization expense for intangible assets subject to amortization was approximately $2,980,000, $3,883,000, and $5,146,000 for the years ended December 31, 2018, 2017 and 2016, respectively.
The following table presents the estimated annual amortization expense for the years 2019 through 2023:
(in thousands)
 
2019
$
2,980

2020
2,537

2021
1,650

2022
1,650

2023
1,650