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Acquisitions - Additional Information (Detail)
$ in Thousands, € in Millions
 3 Months Ended 9 Months Ended
May 31, 2025
USD ($)
Jan. 31, 2025
USD ($)
Jan. 31, 2025
EUR (€)
Sep. 28, 2025
USD ($)
Sep. 29, 2024
USD ($)
Sep. 28, 2025
USD ($)
Sep. 29, 2024
USD ($)
Dec. 31, 2024
USD ($)
Business Acquisition [Line Items]                
Goodwill       $ 519,550   $ 519,550   $ 395,367
Revenues       769,210 $ 737,298 2,106,687 $ 2,066,996  
Loss from operations before income taxes       $ (148,100) $ (158,984) $ (363,684) $ (451,289)  
Quantifi Photonics                
Business Acquisition [Line Items]                
Date of acquisition May 31, 2025              
Total purchase price $ 127,200              
Goodwill 83,068              
Acquired intangible assets $ 43,600              
Weighted average estimated useful life 10 years              
Net tangible assets $ 600              
AET                
Business Acquisition [Line Items]                
Date of acquisition   Jan. 31, 2025 Jan. 31, 2025          
Total purchase price   $ 18,300 € 17.6          
Goodwill   1,300            
Acquired intangible assets   6,400            
Net tangible assets   10,700            
Inventory   $ 11,700            
AET | Developed Technology and Customer Relationships                
Business Acquisition [Line Items]                
Weighted average estimated useful life   4 years 7 months 6 days