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Industry Segment Information (Tables)
6 Months Ended
Jun. 29, 2025
Segment Reporting [Abstract]  
Schedule of Sales and Operating Income by Operating Segment, Excluding Discontinued Operations
Revenue and operating income, including significant segment expenses, by reportable segment are shown in the table below:  
Three Months Ended
June 29, 2025June 30, 2024
Life SciencesDiagnosticsTotalLife SciencesDiagnosticsTotal
(In thousands)
Segment revenue$365,898 $354,386 $720,284 $348,525 $343,160 $691,685 
Segment cost of revenue135,028 156,039 120,427 146,294 
Segment selling, general and administrative expenses86,986 84,127 84,167 83,071 
Segment research and development expenses28,415 24,798 26,364 21,046 
Segment operating income$115,469 $89,422 204,891 $117,567 $92,749 210,316 
Corporate expenses(13,089)(11,449)
Amortization of intangible assets(85,289)(90,620)
Purchase accounting adjustments(2,178)(623)
Acquisition and divestiture-related costs(1,248)(5,779)
Significant litigation matters and settlements(1,124)(6,276)
Restructuring and other, net(11,203)(9,845)
Interest and other (expense) income, net(22,110)938 
Income from continuing operations before income taxes$68,650 $86,662 
Six Months Ended
June 29, 2025June 30, 2024
Life SciencesDiagnosticsTotalLife SciencesDiagnosticsTotal
(In thousands)
Segment revenue$706,293 $678,753 $1,385,046 $685,039 $656,566 $1,341,605 
Segment cost of revenue254,349 291,230 243,988 277,183 
Segment selling, general and administrative expenses174,081 174,017 170,104 165,880 
Segment research and development expenses56,683 50,069 52,429 44,550 
Segment operating income$221,180 $163,437 384,617 $218,518 $168,953 387,471 
Corporate expenses(22,904)(22,810)
Amortization of intangible assets(167,989)(181,858)
Purchase accounting adjustments(2,001)(7,245)
Acquisition and divestiture-related costs(3,789)(17,241)
Significant litigation matters and settlements(11,710)(6,276)
Significant environmental matters1,208 — 
Restructuring and other, net(14,442)(22,201)
Interest and other expense, net(41,958)(8,629)
Income from continuing operations before income taxes$121,032 $121,211 
Schedule of Depreciation [Table Text Block]
Depreciation expense included in the Company’s reportable segment operating income and corporate expenses is as follows:
Three Months EndedSix Months Ended
 June 29,
2025
June 30,
2024
June 29,
2025
June 30,
2024
 (In thousands)
Life Sciences$8,547 $8,124 $15,732 $16,394 
Diagnostics8,279 7,999 15,125 15,701 
Corporate665 601 1,356 1,192 
Total depreciation expense$17,491 $16,724 $32,213 $33,287