v3.26.1
Industry Segment Information (Schedule of Sales and Operating Income by Operating Segment, Excluding Discontinued Operations) (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 05, 2026
Mar. 30, 2025
Segment Reporting [Line Items]    
Segment revenue $ 711,118 $ 664,762
Total amortization expense related to finite-lived intangible assets 85,100 82,700
Operating income (loss) from continuing operations 75,886 72,230
Interest and other expense, net 25,894 19,848
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest 49,992 52,382
Gain (Loss) on Disposition of Assets 5,074 0
Product [Member]    
Segment Reporting [Line Items]    
Segment revenue 581,458 562,680
Service [Member]    
Segment Reporting [Line Items]    
Segment revenue 129,660 102,082
Diagnostics [Member]    
Segment Reporting [Line Items]    
Segment revenue 349,273 324,367
Segment operating income 76,122 74,015
Life Sciences [Member]    
Segment Reporting [Line Items]    
Segment revenue 361,845 340,395
Segment operating income 103,979 105,711
Reportable Segment Revenue [Member]    
Segment Reporting [Line Items]    
Segment revenue 711,118 664,762
Reportable Segment Revenue [Member] | Diagnostics [Member]    
Segment Reporting [Line Items]    
Segment revenue 349,273 324,367
Reportable Segment Revenue [Member] | Life Sciences [Member]    
Segment Reporting [Line Items]    
Segment revenue 361,845 340,395
Segment Operating Income [Member]    
Segment Reporting [Line Items]    
Segment operating income 180,101 179,726
Segment Operating Income [Member] | Diagnostics [Member]    
Segment Reporting [Line Items]    
Segment Cost of Revenue 156,753 135,190
Segment Selling, general and administrative expenses 90,192 89,891
Segment research and development expenses 26,206 25,271
Segment Operating Income [Member] | Life Sciences [Member]    
Segment Reporting [Line Items]    
Segment Cost of Revenue 131,574 119,321
Segment Selling, general and administrative expenses 94,668 87,094
Segment research and development expenses 31,624 28,269
Reconciling Item (to Reconcile Segment Operating Income to Income from Continuing Operations before Income Taxes) [Member]    
Segment Reporting [Line Items]    
Corporate Expenses (12,247) (9,815)
Total amortization expense related to finite-lived intangible assets (85,081) (82,700)
Purchase accounting adjustments (141) 177
Acquisition and divestiture-related costs (282) (2,541)
Significant litigation matters and settlements (69) (10,586)
Restructuring and other, net (10,675) (3,239)
Significant environmental matters 0 1,208
Transformation costs $ (794) $ 0