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Intangible Assets and Goodwill (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Components of intangible assets |  |  |
Intangible assets, gross | $ 344,351 |  | $ 341,351
Accumulated amortization | (286,717) |  | (282,931)
Finite-lived intangible assets | 46,434 |  |
In-process research and development | 11,200 |  |
Intangible assets, net | 57,634 |  | 58,420
Acquisition of intangible assets | 3,000 | $ 0 |
In-process research and development |  |  |
Components of intangible assets |  |  |
In-process research and development | 11,200 |  | 11,200
Existing technology |  |  |
Components of intangible assets |  |  |
Gross carrying amount | 295,058 |  | 292,058
Accumulated amortization | (250,892) |  | (247,422)
Finite-lived intangible assets | 44,166 |  | $ 44,636
Acquisition of intangible assets | $ 3,000 |  |
Identified intangible assets assumed, useful life (in years) | 5 years |  |
Existing technology | Minimum |  |  |
Components of intangible assets |  |  |
Useful life (in years) | 3 years |  | 3 years
Existing technology | Maximum |  |  |
Components of intangible assets |  |  |
Useful life (in years) | 10 years |  | 10 years
Customer contracts and contractual relationships |  |  |
Components of intangible assets |  |  |
Gross carrying amount | $ 37,793 |  | $ 37,793
Accumulated amortization | (35,525) |  | (35,209)
Finite-lived intangible assets | $ 2,268 |  | $ 2,584
Customer contracts and contractual relationships | Minimum |  |  |
Components of intangible assets |  |  |
Useful life (in years) | 6 months |  | 6 months
Customer contracts and contractual relationships | Maximum |  |  |
Components of intangible assets |  |  |
Useful life (in years) | 10 years |  | 10 years
Non-compete agreements and trademarks |  |  |
Components of intangible assets |  |  |
Gross carrying amount | $ 300 |  | $ 300
Accumulated amortization | (300) |  | (300)
Finite-lived intangible assets | $ 0 |  | $ 0
Useful life (in years) | 3 years |  | 3 years

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