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Acquisitions (Details 1) - USD ($)
$ in Thousands
Oct. 02, 2021
Feb. 23, 2021
Jan. 02, 2021
Business Acquisition [Line Items]      
Goodwill $ 925,949   $ 782,087
NUMECA      
Business Acquisition [Line Items]      
Current assets   $ 16,423  
Goodwill   132,693  
Acquired intangibles   72,200  
Other long-term assets   6,928  
Total assets acquired   228,244  
Current liabilities   9,951  
Long-term liabilities   20,091  
Total liabilities assumed   30,042  
Total purchase consideration   $ 198,202