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Intangible Assets and Goodwill (Details 2) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Components of intangible assets |  |  |
Intangible Assets, Gross | $ 301,982 | $ 301,982 |
Accumulated Amortization | (265,495) | (247,082) |
Finite-lived intangible assets | 34,887 |  |
In-process research and development | 1,600 |  |
Intangible assets, net | 36,487 | 54,900 |
Amortization expense for intangible assets | $ 18,413 | 17,058 | $ 29,341
Minimum |  |  |
Components of intangible assets |  |  |
Useful life (in years) | 6 months |  |
Maximum |  |  |
Components of intangible assets |  |  |
Useful life (in years) | 10 years |  |
Existing technology |  |  |
Components of intangible assets |  |  |
Gross Carrying Amount | $ 263,789 | 262,789 |
Accumulated Amortization | (230,950) | (213,354) |
Finite-lived intangible assets | $ 32,839 | $ 49,435 |
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 | $ 36,293 | $ 36,293 |
Accumulated Amortization | (34,245) | (33,428) |
Finite-lived intangible assets | $ 2,048 | $ 2,865 |
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-competition agreements |  |  |
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 |
In-process research and development |  |  |
Components of intangible assets |  |  |
In-process research and development | $ 1,600 | $ 2,600 |
Payments and Ticketing business |  |  |
Components of intangible assets |  |  |
Disposal of intangible assets, noncurrent |  | $ 20,700 |

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