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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 | 9 Months Ended
--- | --- | ---
Sep. 28, 2025 | Sep. 29, 2024 | Sep. 28, 2025 | Sep. 29, 2024
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | $ 698,949 | $ 684,049 | $ 2,083,995 | $ 2,025,654
Total amortization expense related to finite-lived intangible assets | 84,100 | 89,600 | 252,100 | 271,500
Operating income (loss) from continuing operations | 81,896 | 98,151 | 244,886 | 227,991
Interest and other expense (income), net | 26,211 | (2,206) | 68,169 | 6,423
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | 55,685 | 100,357 | 176,717 | 221,568
Product [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 573,225 | 579,997 | 1,742,983 | 1,717,927
Service [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 125,724 | 104,052 | 341,012 | 307,727
Diagnostics [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 356,127 | 345,249 | 1,034,880 | 1,001,815
Segment operating income | 89,376 | 93,848 | 252,813 | 262,801
Life Sciences [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 342,822 | 338,800 | 1,049,115 | 1,023,839
Segment operating income | 101,048 | 110,565 | 322,228 | 329,083
Reportable Segment Revenue [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 698,949 | 684,049 | 2,083,995 | 2,025,654
Reportable Segment Revenue [Member] | Diagnostics [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 356,127 | 345,249 | 1,034,880 | 1,001,815
Reportable Segment Revenue [Member] | Life Sciences [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment revenue | 342,822 | 338,800 | 1,049,115 | 1,023,839
Segment Operating Income [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment operating income | 190,424 | 204,413 | 575,041 | 591,884
Segment Operating Income [Member] | Diagnostics [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment Cost of Revenue | 158,900 | 144,653 | 450,130 | 421,836
Segment Selling, general and administrative expenses | 84,719 | 84,116 | 258,736 | 249,996
Segment research and development expenses | 23,132 | 22,632 | 73,201 | 67,182
Segment Operating Income [Member] | Life Sciences [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment Cost of Revenue | 129,976 | 117,546 | 384,325 | 361,534
Segment Selling, general and administrative expenses | 84,190 | 84,944 | 258,271 | 255,048
Segment research and development expenses | 27,608 | 25,745 | 84,291 | 78,174
Reconciling Item (to Reconcile Segment Operating Income to Income from Continuing Operations before Income Taxes) [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Corporate Expenses | (8,008) | (10,915) | (30,912) | (33,725)
Total amortization expense related to finite-lived intangible assets | (84,074) | (89,642) | (252,063) | (271,500)
Purchase accounting adjustments | (348) | (103) | (2,349) | (7,348)
Acquisition and divestiture-related costs | (284) | (4,874) | (2,950) | (22,115)
Transformation costs | (5,103) | 0 | (6,226) | 0
Significant litigation matters and settlements | (785) | (810) | (12,495) | (7,086)
Restructuring and other, net | $ (9,926) | $ 82 | (24,368) | (22,119)
Significant environmental matters |  |  | $ 1,208 | $ 0

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