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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
--- | --- | ---
Jun. 29, 2025 | Jun. 30, 2024 | Jun. 29, 2025 | Jun. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | $ 720,284 | $ 691,685 | $ 1,385,046 | $ 1,341,605
Total amortization expense related to finite-lived intangible assets | 85,300 | 90,600 | 168,000 | 181,900
Operating income (loss) from continuing operations | 90,760 | 85,724 | 162,990 | 129,840
Interest and other expense (income), net | 22,110 | (938) | 41,958 | 8,629
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | 68,650 | 86,662 | 121,032 | 121,211
Product [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 610,704 | 589,091 | 1,169,758 | 1,137,930
Service [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 109,580 | 102,594 | 215,288 | 203,675
Diagnostics [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 354,386 | 343,160 | 678,753 | 656,566
Segment operating income | 89,422 | 92,749 | 163,437 | 168,953
Life Sciences [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 365,898 | 348,525 | 706,293 | 685,039
Segment operating income | 115,469 | 117,567 | 221,180 | 218,518
Reportable Segment Revenue [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 720,284 | 691,685 | 1,385,046 | 1,341,605
Reportable Segment Revenue [Member] | Diagnostics [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 354,386 | 343,160 | 678,753 | 656,566
Reportable Segment Revenue [Member] | Life Sciences [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 365,898 | 348,525 | 706,293 | 685,039
Segment Operating Income [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment operating income | 204,891 | 210,316 | 384,617 | 387,471
Segment Operating Income [Member] | Diagnostics [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment Cost of Revenue | 156,039 | 146,294 | 291,230 | 277,183
Segment Selling, general and administrative expenses | 84,127 | 83,071 | 174,017 | 165,880
Segment research and development expenses | 24,798 | 21,046 | 50,069 | 44,550
Segment Operating Income [Member] | Life Sciences [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment Cost of Revenue | 135,028 | 120,427 | 254,349 | 243,988
Segment Selling, general and administrative expenses | 86,986 | 84,167 | 174,081 | 170,104
Segment research and development expenses | 28,415 | 26,364 | 56,683 | 52,429
Reconciling Item (to Reconcile Segment Operating Income to Income from Continuing Operations before Income Taxes) [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Corporate Expenses | (13,089) | (11,449) | (22,904) | (22,810)
Total amortization expense related to finite-lived intangible assets | (85,289) | (90,620) | (167,989) | (181,858)
Purchase accounting adjustments | 2,178 | 623 | 2,001 | 7,245
Acquisition and divestiture-related costs | 1,248 | 5,779 | 3,789 | 17,241
Significant litigation matters and settlements | $ 1,124 | $ 6,276 | $ 11,710 | $ 6,276
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] | Selling, general and administrative expenses | Selling, general and administrative expenses | Selling, general and administrative expenses | Selling, general and administrative expenses
Significant environmental matters |  |  | $ 1,208 | $ 0

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