Acquisitions (Details 9) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2022	Feb. 23, 2021
Business Acquisition [Line Items]
Goodwill	$ 1,535,845	$ 1,374,268	$ 928,358
NUMECA
Business Acquisition [Line Items]
Current assets				$ 16,423
Goodwill				133,077
Acquired intangibles				72,200
Other long-term assets				6,928
Total assets acquired				228,628
Current liabilities				9,951
Long-term liabilities				20,475
Total liabilities assumed				30,426
Total purchase consideration				$ 198,202