Inventories (Detail) - USD ($) $ in Thousands	Jun. 27, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 133,722	$ 132,370
Work-in-process	78,088	75,874
Finished goods	278,508	304,952
Inventories	$ 490,318	$ 513,196

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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