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Goodwill and Other Identifiable Intangible Assets | 12 Months Ended
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Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract] |
Goodwill and Other Identifiable Intangible Assets | 4. Goodwill and other identifiable intangible assets Goodwill The changes in the carrying amount of goodwill for the years ended December 31, 2020 and 2019 were as follows:
(amounts in thousands) |  |  |  |
Balance as of December 31, 2018 |  | $ | 2,257 |
Translation adjustment |  |  | (45 | )
Acquisition |  |  | 30,742 |
Balance as of December 31, 2019 |  | $ | 32,954 |
Translation adjustment |  |  | 211 |
Balance as of December 31, 2020 |  | $ | 33,165 |
As of December 31, 2020, the Company had no accumulated impairment losses related to goodwill. Intangible assets There were no accumulated impairment losses related to the Company’s intangible assets as of December 31, 2020. Amortization expense for intangible assets for the years ended December 31, 2020, 2019 and 2018 were as follows:
|  | Years ended December 31, |
(amounts in thousands) |  | 2020 |  |  | 2019 |  |  | 2018 |
Research and development expense |  | $ | 7,800 |  |  | $ | 2,914 |  |  | $ | — |
Sales and marketing expense |  |  | 204 |  |  |  | 175 |  |  |  | 144 |
General and administrative expense |  |  | 1,000 |  |  |  | 1,071 |  |  |  | 1,121 |
Total |  | $ | 9,004 |  |  | $ | 4,160 |  |  | $ | 1,265 |
The following tables represent the changes in net carrying values of the intangibles as of the respective dates:
|  | Average |  |  |  |  |  |  |  |  |  |  |  |
|  | estimated |  | Gross |  |  |  |  |  |  |  |  |
(amounts in thousands) |  | useful lives |  | carrying |  |  | Accumulated |  |  |  |  |
December 31, 2020 |  | (in years) |  | amount |  |  | amortization |  |  | Net amount |
Technology |  | 10 |  | $ | 77,700 |  |  | $ | 10,684 |  |  | $ | 67,016 |
Licenses |  | 10 |  |  | 185 |  |  |  | 174 |  |  |  | 11 |
Patents and websites |  | 5 |  |  | 4,488 |  |  |  | 3,015 |  |  |  | 1,473 |
Customer relationships |  | 4 |  |  | 1,474 |  |  |  | 1,351 |  |  |  | 123 |
Commercials |  | 2-3 |  |  | 733 |  |  |  | 559 |  |  |  | 174 |
Total |  |  |  | $ | 84,580 |  |  | $ | 15,783 |  |  | $ | 68,797 |
|  | Average |  |  |  |  |  |  |  |  |  |  |  |
|  | estimated |  | Gross |  |  |  |  |  |  |  |  |
(amounts in thousands) |  | useful lives |  | carrying |  |  | Accumulated |  |  |  |  |
December 31, 2019 |  | (in years) |  | amount |  |  | amortization |  |  | Net amount |
Technology |  | 10 |  | $ | 77,700 |  |  | $ | 2,914 |  |  | $ | 74,786 |
Licenses |  | 10 |  |  | 185 |  |  |  | 165 |  |  |  | 20 |
Patents and websites |  | 5 |  |  | 4,274 |  |  |  | 2,308 |  |  |  | 1,966 |
Customer relationships |  | 4 |  |  | 1,346 |  |  |  | 897 |  |  |  | 449 |
Commercials |  | 2-3 |  |  | 777 |  |  |  | 465 |  |  |  | 312 |
Total |  |  |  | $ | 84,282 |  |  | $ | 6,749 |  |  | $ | 77,533 |
Annual estimated amortization expense for each of the succeeding fiscal years is as follows:
|  | December 31, |
(amounts in thousands) |  | 2020 |
2021 |  | $ | 8,746 |
2022 |  |  | 8,423 |
2023 |  |  | 7,847 |
2024 |  |  | 7,831 |
2025 |  |  | 7,784 |
Thereafter |  |  | 28,166 |
Total |  | $ | 68,797 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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