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Goodwill and Intangible Assets, Net (Tables)
 6 Months Ended
Jun. 29, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in the Carrying Amount of Goodwill
The changes in the carrying amount of goodwill for the six months ended June 29, 2025 were as follows:
Life SciencesDiagnosticsConsolidated
 (In thousands)
Balance at December 29, 2024$4,541,467 $1,922,152 $6,463,619 
Foreign currency translation106,355 45,015 151,370 
Acquisitions, earn-outs and other98 (98)— 
Balance at June 29, 2025$4,647,920 $1,967,069 $6,614,989 
Identifiable Intangible Asset Balances
Identifiable intangible asset balances by category were as follows:
June 29,
2025		December 29,
2024
 (In thousands)
Patents$27,805 $27,808 
Less: Accumulated amortization(26,411)(26,293)
Net patents1,394 1,515 
Trade names and trademarks150,515 142,588 
Less: Accumulated amortization(97,603)(87,824)
Net trade names and trademarks52,912 54,764 
Licenses27,429 27,164 
Less: Accumulated amortization(19,082)(17,855)
Net licenses8,347 9,309 
Core technology1,623,863 1,561,831 
Less: Accumulated amortization(848,346)(735,532)
Net core technology775,517 826,299 
Customer relationships2,861,133 2,807,909 
Less: Accumulated amortization(1,184,935)(1,058,875)
Net customer relationships1,676,198 1,749,034 
Total$2,514,368 $2,640,921