Certain Balance Sheet Components (Components Of Property And Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
Balance Sheet Related Disclosures [Abstract]
Machinery and equipment	$ 109,783us-gaap_MachineryAndEquipmentGross	$ 107,477us-gaap_MachineryAndEquipmentGross
Software and licenses	93,487	71,790
Furniture and fixtures	26,045us-gaap_FurnitureAndFixturesGross	24,254us-gaap_FurnitureAndFixturesGross
Leasehold improvements	26,621us-gaap_LeaseholdImprovementsGross	22,806us-gaap_LeaseholdImprovementsGross
Construction in progress	24,676us-gaap_ConstructionInProgressGross	29,219us-gaap_ConstructionInProgressGross
Buildings	48,544us-gaap_BuildingsAndImprovementsGross	46,451us-gaap_BuildingsAndImprovementsGross
Land	4,984us-gaap_Land	5,113us-gaap_Land
Property and equipment, gross	334,140us-gaap_PropertyPlantAndEquipmentGross	307,110us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation	(176,785)	(164,135)
Total	$ 157,355us-gaap_PropertyPlantAndEquipmentNet	$ 142,975us-gaap_PropertyPlantAndEquipmentNet

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

+ References

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Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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- Definition

Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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