v3.26.1
Restructuring and Related Activities (Narrative) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 05, 2026
Mar. 30, 2025
Restructuring Cost and Reserve [Line Items]    
Restructuring and Other Costs (Income) $ 10,675 $ 3,239
Other Charges Included in Restructuring and Other Costs $ 2,900  
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent 2.00%  
Restructuring Reserve [Roll Forward]    
Restructuring Reserve, Beginning Balance $ 17,793  
Net restructuring charges incurred 7,746  
Payments for Restructuring (11,555)  
Restructuring Reserve, Ending Balance 13,984  
Life Sciences [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring and Other Costs (Income) 3,229 2,528
Lease Abandonment Charges Included In Restructuring and Other Costs 1,300  
Diagnostics [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring and Other Costs (Income) 7,554 135
Lease Abandonment Charges Included In Restructuring and Other Costs 1,200  
Acceleration of depreciation of fixed assets and other charges 400  
Corporate Expenses [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring and Other Costs (Income) $ (108) $ 576