Business Segment Information - Summary of Net Sales by Customer Class (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024
Revenue, Major Customer [Line Items]
Total net sales	$ 799,887	$ 740,305	$ 2,232,924	$ 2,085,673
Pharmaceutical [Member]
Revenue, Major Customer [Line Items]
Total net sales	479,776	430,138	1,332,795	1,220,092
Industrial [Member]
Revenue, Major Customer [Line Items]
Total net sales	235,669	227,740	676,689	644,459
Academic and government [Member]
Revenue, Major Customer [Line Items]
Total net sales	$ 84,442	$ 82,427	$ 223,440	$ 221,122

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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