v3.20.2

Goodwill and Intangible Assets | 6 Months Ended
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Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Intangible Assets | Goodwill and Intangible Assets Goodwill balances are presented below (in thousands):
| Carrying Amount
Balance as of December 31, 2019 | $ | 156,756 |
Goodwill acquired | 54,635 |
Foreign currency translation adjustments | 25 |
Balance as of June 30, 2020 | $ | 211,416 |
Intangible assets consist of the following (in thousands):
| June 30, 2020 |  | December 31, 2019
Developed technology | $ | 212,533 |  |  | $ | 177,746 |
Patents | 67,109 |  |  | 67,730 |
Other | 3,594 |  |  | 3,594 |
Intangible assets, gross | 283,236 |  |  | 249,070 |
Less: accumulated amortization | (119,379) |  |  | (105,220) |
Intangible assets, net | $ | 163,857 |  |  | $ | 143,850 |
During the six months ended June 30, 2020, apart from the business combinations described in Note 5, we acquired $7 million of intangible assets in developed technology. The weighted-average useful life for the developed technology acquired during the six months ended June 30, 2020 was approximately 5 years. During the six months ended June 30, 2019, we acquired $36 million of intangible assets, comprising primarily $27 million of developed technology and $9 million in patents. The weighted-average useful lives for the developed technology and patents acquired during the six months ended June 30, 2019 was approximately 5 and 6 years, respectively. Amortization expense for intangible assets for the three months ended June 30, 2020 and 2019 was $15 million and $8 million, respectively, and for the six months ended June 30, 2020 and 2019 was $25 million and $15 million, respectively. The following table presents the estimated future amortization expense related to intangible assets held at June 30, 2020 (in thousands):
Years Ending December 31, |  |  |  |  |
Remainder of 2020 |  |  |  |  | $ | 20,883 |
2021 |  |  |  |  | 40,684 |
2022 |  |  |  |  | 36,547 |
2023 |  |  |  |  | 31,396 |
2024 |  |  |  |  | 26,228 |
Thereafter |  |  |  |  | 8,119 |
Total future amortization expense |  |  |  |  | $ | 163,857 |

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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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