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 6 Months Ended
Jul. 05, 2026
Jun. 29, 2025
Jul. 05, 2026
Jun. 29, 2025
Segment Reporting [Line Items]        
Segment revenue $ 729,688 $ 720,284 $ 1,440,806 $ 1,385,046
Total amortization expense related to finite-lived intangible assets 84,900 85,300 170,000 168,000
Operating income (loss) from continuing operations 89,316 90,760 165,202 162,990
Interest and other expense, net 25,785 22,110 51,679 41,958
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest 63,531 68,650 113,523 121,032
Product [Member]        
Segment Reporting [Line Items]        
Segment revenue 603,411 610,704 1,184,869 1,169,758
Service [Member]        
Segment Reporting [Line Items]        
Segment revenue 126,277 109,580 255,937 215,288
Diagnostics [Member]        
Segment Reporting [Line Items]        
Segment revenue 370,989 354,386 720,262 678,753
Segment operating income 112,866 89,422 188,988 163,437
Life Sciences [Member]        
Segment Reporting [Line Items]        
Segment revenue 358,699 365,898 720,544 706,293
Segment operating income 111,534 115,469 215,513 221,180
Reportable Segment Revenue [Member]        
Segment Reporting [Line Items]        
Segment revenue 729,688 720,284 1,440,806 1,385,046
Reportable Segment Revenue [Member] | Diagnostics [Member]        
Segment Reporting [Line Items]        
Segment revenue 370,989 354,386 720,262 678,753
Reportable Segment Revenue [Member] | Life Sciences [Member]        
Segment Reporting [Line Items]        
Segment revenue 358,699 365,898 720,544 706,293
Segment Operating Income [Member]        
Segment Reporting [Line Items]        
Segment operating income 224,400 204,891 404,501 384,617
Segment Operating Income [Member] | Diagnostics [Member]        
Segment Reporting [Line Items]        
Segment Cost of Revenue 150,911 156,039 307,664 291,230
Segment Selling, general and administrative expenses 84,652 84,127 174,844 174,017
Segment research and development expenses 22,560 24,798 48,766 50,069
Segment Operating Income [Member] | Life Sciences [Member]        
Segment Reporting [Line Items]        
Segment Cost of Revenue 127,004 135,028 258,578 254,349
Segment Selling, general and administrative expenses 93,804 86,986 188,472 174,081
Segment research and development expenses 26,357 28,415 57,981 56,683
Reconciling Item (to Reconcile Segment Operating Income to Income from Continuing Operations before Income Taxes) [Member]        
Segment Reporting [Line Items]        
Corporate Expenses (13,391) (13,089) (25,638) (22,904)
Total amortization expense related to finite-lived intangible assets (84,871) (85,289) (169,952) (167,989)
Purchase accounting adjustments (1,866) (2,178) (2,007) (2,001)
Acquisition and divestiture-related costs (105) (1,248) (387) (3,789)
Significant litigation matters and settlements (79) (1,124) (148) (11,710)
Restructuring and other, net (35,508) (11,203) (46,183) (14,442)
Significant environmental matters     0 1,208
Transformation costs $ 736 $ 0 (58) 0
Gain (Loss) on Disposition of Assets     $ 5,074 $ 0