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Goodwill and Intangible Assets, net | 3 Months Ended
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Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Intangible Assets, net | Goodwill and Intangible Assets, net In connection with our acquisition of DVS in February 2014, we recognized goodwill of $104.1 million and $112.0 million of developed technology. In the first quarter of 2020, we recognized $2.2 million (Euro 2.0 million) of goodwill from the InstruNor acquisition and $5.4 million (Euro 4.9 million) of developed technology. As the goodwill and developed technology from the InstruNor acquisition are recorded in the functional currency of our European operations, which is the Euro, these balances are revalued each period and the U.S. dollar value of these assets will fluctuate as foreign exchange rates change. We are amortizing InstruNor developed technology over 8 years. Goodwill and intangible assets with indefinite lives are not subject to amortization but are tested for impairment on an annual basis during the fourth quarter or whenever events or changes in circumstances indicate the carrying amount of these assets may not be recoverable. Qualitative assessment includes assessing significant events and circumstances such as our current results, assumptions regarding future performance, strategic initiatives and overall economic factors, including the ongoing global COVID-19 pandemic and macroeconomic developments to determine the existence of potential indicators of impairment and assess if it is more likely than not that the fair value of our reporting unit or intangible assets is less than their carrying value. If indicators of impairment are identified, a quantitative impairment test is performed. There have been no indicators of impairment during the three months ended March 31, 2022. Intangible assets also include other patents and licenses, which are included in other non-current assets. Intangibl e assets, net, were as follows (in thousands):
| March 31, 2022
|  | Gross Amount |  | Accumulated Amortization |  | Net |  | Weighted-Average Amortization Period
Developed technology |  | $ | 117,392 |  |  | $ | (92,517) |  |  | $ | 24,875 |  |  | 9.9 years
Patents and licenses |  | $ | 11,259 |  |  | $ | (10,171) |  |  | $ | 1,088 |  |  | 7.0 years
|  | December 31, 2021
|  | Gross Amount |  | Accumulated Amortization |  | Net |  | Weighted-Average Amortization Period
Developed technology |  | $ | 117,503 |  |  | $ | (89,576) |  |  | $ | 27,927 |  |  | 9.9 years
Patents and licenses |  | $ | 11,257 |  |  | $ | (10,000) |  |  | $ | 1,257 |  |  | 7.0 years
Total amortization expense for the three months ended March 31, 2022 and 2021 was $3.1 million and $3.2 million, respectively. Based on the carrying value of intangible assets as of March 31, 2022, the amortization expense is expected to be as follows (in thousands):
Fiscal Year | Developed Technology Amortization Expense |  | Patents and Licenses Amortization Expense |  | Total
2022 remainder of the year | $ | 8,905 |  |  | $ | 508 |  |  | $ | 9,413 |
2023 | 11,874 |  |  | 572 |  |  | 12,446 |
2024 | 2,074 |  |  | 8 |  |  | 2,082 |
2025 | 674 |  |  | — |  |  | 674 |
2026 | 674 |  |  | — |  |  | 674 |
Thereafter | 674 |  |  | — |  |  | 674 |
Total | $ | 24,875 |  |  | $ | 1,088 |  |  | $ | 25,963 |

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- Definition The entire disclosure for all or part of the information related to 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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