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Intangible Assets and Goodwill | 3 Months Ended
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Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets and Goodwill | Intangible Assets and Goodwill Goodwill The following tables present goodwill information for the three months ended March 31, 2022:
(In thousands) |  | As of December 31, 2021 |  | Adjustment to Goodwill (1) |  |  |  |  |  |  |  | As of March 31, 2022
Total goodwill |  | $ | 278,810 |  |  | $ | 983 |  |  |  |  |  |  |  |  | $ | 279,793 |
_________________________________________ (1) During the three months ended March 31, 2022, the Company corrected an immaterial error related to an understatement in other current liabilities that originated from the acquisition of AnalogX in 2021.
|  | As of March 31, 2022
(In thousands) |  | Gross Carrying Amount |  | Accumulated Impairment Losses |  |  |  | Net Carrying Amount
Total goodwill |  | $ | 301,563 |  |  | $ | (21,770) |  |  |  |  | $ | 279,793 |
Intangible Assets, Net The components of the Company’s intangible assets as of March 31, 2022 and December 31, 2021 were as follows:
|  |  | As of March 31, 2022
(In thousands) | Useful Life |  | Gross Carrying Amount (1) |  | Accumulated Amortization (1) |  |  |  | Net Carrying Amount
Existing technology | 3 to 10 years |  | $ | 295,058 |  |  | $ | (250,892) |  |  |  |  | $ | 44,166 |
Customer contracts and contractual relationships | 0.5 to 10 years |  | 37,793 |  |  | (35,525) |  |  |  |  | 2,268 |
Non-compete agreements and trademarks | 3 years |  | 300 |  |  | (300) |  |  |  |  | — |
In-process research and development | Not applicable |  | 11,200 |  |  | — |  |  |  |  | 11,200 |
Total intangible assets |  |  | $ | 344,351 |  |  | $ | (286,717) |  |  |  |  | $ | 57,634 |
_________________________________________ (1) During the three months ended March 31, 2022, the Company acquired certain intangible assets for $3.0 million in cash. The assets were classified as existing technology and are being amortized over their expected useful life of five years. During the three months ended March 31, 2022, the amortization for the acquired assets was not material.
|  |  | As of December 31, 2021
(In thousands) | Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Existing technology | 3 to 10 years |  | $ | 292,058 |  |  | $ | (247,422) |  |  | $ | 44,636 |
Customer contracts and contractual relationships | 0.5 to 10 years |  | 37,793 |  |  | (35,209) |  |  | 2,584 |
Non-compete agreements and trademarks | 3 years |  | 300 |  |  | (300) |  |  | — |
In-process research and development (“IPR&D”) | Not applicable |  | 11,200 |  |  | — |  |  | 11,200 |
Total intangible assets |  |  | $ | 341,351 |  |  | $ | (282,931) |  |  | $ | 58,420 |
Amortization expense for intangible assets for the three months ended March 31, 2022 and 2021 was $3.8 million and $4.6 million, respectively. The estimated future amortization of intangible assets as of March 31, 2022 was as follows (in thousands):
Years Ending December 31: |  | Amount
2022 (remaining nine months) |  | $ | 11,221 |
2023 |  | 14,091 |
2024 |  | 11,780 |
2025 |  | 5,780 |
2026 |  | 3,462 |
Thereafter |  | 100 |
Total amortizable purchased intangible assets |  | 46,434 |
IPR&D |  | 11,200 |
Total intangible assets |  | $ | 57,634 |

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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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