Inventories - Major Classes of Inventories (Detail) - USD ($) $ in Thousands	Oct. 02, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 94,789	$ 92,929
Work-in-process	24,627	27,730
Finished goods	99,477	97,814
Gross inventories	218,893	218,473
Excess and obsolete reserves	(25,393)	(22,531)
Net inventories	$ 193,500	$ 195,942

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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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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.5-02.6(a))
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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 of valuation reserve for inventory.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 330
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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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