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Business Combinations (Details) - USD ($) $ in Thousands | Apr. 01, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |
Goodwill |  | $ 418,547 | $ 444,817 | $ 63,924
exocad Acquisition |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Total purchase consideration paid | $ 430,000 |  |  |
Goodwill | 340,181 |  |  |
Identified intangible assets | 118,700 |  |  |
Cash and cash equivalents | 9,190 |  |  |
Deferred tax liabilities | (35,419) |  |  |
Other assets (liabilities), net | (2,674) |  |  |
Total | 429,978 |  |  |
Intangible assets subject to amortization | 118,700 |  |  |
Total intangible assets | 118,700 |  |  |
exocad Acquisition | In-process Research and Development (“IPR&D”) |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets not subject to amortization | 400 |  |  |
exocad Acquisition | Existing technology |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Identified intangible assets | $ 87,000 |  |  |
Estimated useful lives of intangibles | 10 years |  |  |
Intangible assets subject to amortization | $ 87,000 |  |  |
exocad Acquisition | Customer relationships |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Identified intangible assets | $ 21,500 |  |  |
Estimated useful lives of intangibles | 10 years |  |  |
Intangible assets subject to amortization | $ 21,500 |  |  |
exocad Acquisition | Tradenames |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Identified intangible assets | $ 9,800 |  |  |
Estimated useful lives of intangibles | 7 years |  |  |
Intangible assets subject to amortization | $ 9,800 |  |  |

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