Inventories, net (Detail) - USD ($) $ in Thousands	Jul. 01, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Raw materials	$ 103,005	$ 98,451
Work-in-process	63,386	62,381
Finished goods	239,037	234,912
Inventories, net	$ 405,428	$ 395,744

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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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