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Business Segment Information - Summary of Net Sales by Customer Class (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2025	Mar. 30, 2024
Revenue, Major Customer [Line Items]
Total net sales	$ 661,705	$ 636,839
Pharmaceutical [Member]
Revenue, Major Customer [Line Items]
Total net sales	391,051	374,207
Industrial [Member]
Revenue, Major Customer [Line Items]
Total net sales	203,365	195,334
Academic and government [Member]
Revenue, Major Customer [Line Items]
Total net sales	$ 67,289	$ 67,298

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