Acquisitions (Details 2) - NUMECA $ in Thousands	3 Months Ended
	Apr. 03, 2021 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 72,200
Weighted-average useful life of definite-lived intangible assets acquired	14 years 8 months 12 days
Existing Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 47,000
Weighted-average useful life of definite-lived intangible assets acquired	15 years
Agreements and Relationship [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 21,200
Weighted-average useful life of definite-lived intangible assets acquired	14 years
Tradename Trademark and Patents [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 4,000
Weighted-average useful life of definite-lived intangible assets acquired	15 years