Inventories - Components of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Dec. 31, 2012
Inventory Disclosure [Abstract]
Raw material	$ 34,173	$ 31,350
Work in process	948	921
Deferred costs of long-term contracts	409	604
Finished goods	87,191	104,137
Inventories, gross	122,721	137,012
Inventory reserves	(13,572)	(13,655)
Inventories, net	$ 109,149	$ 123,357

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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 before valuation and LIFO reserves, and progress payments, of inventory associated with long-term contracts, expected to be sold, or consumed 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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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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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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