Certain Balance Sheet Components (Components Of Net Inventories) (Details) (USD $)	Jan. 02, 2015	Jan. 03, 2014	Dec. 28, 2012
Balance Sheet Related Disclosures [Abstract]
Raw materials	$ 116,786,000	$ 94,988,000
Work-in-process	4,848,000	6,871,000
Finished goods	156,465,000	152,452,000
Total inventories, net	278,099,000us-gaap_InventoryNet	254,311,000us-gaap_InventoryNet	240,529,000us-gaap_InventoryNet
Deferred Costs, Current	$ 9,400,000us-gaap_DeferredCostsCurrent	$ 12,600,000us-gaap_DeferredCostsCurrent

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Sum of the carrying amounts as of the balance sheet date of deferred costs capitalized at the end of the reporting period that are expected to be charged against earnings within one year or the normal operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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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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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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