Property, Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Property, Plant and Equipment
Property, plant and equipment - gross	$ 597,487	$ 499,295
Less accumulated depreciation and amortization	262,041	217,245
Property, plant and equipment-net	335,446	282,050
Land
Property, Plant and Equipment
Property, plant and equipment - gross	16,008	14,357
Buildings
Property, Plant and Equipment
Property, plant and equipment - gross	74,592	64,255
Furniture and fixtures
Property, Plant and Equipment
Property, plant and equipment - gross	107,409	92,713
Computer equipment and software
Property, Plant and Equipment
Property, plant and equipment - gross	155,408	137,167
Leasehold improvements
Property, Plant and Equipment
Property, plant and equipment - gross	210,414	179,386
Construction in progress
Property, Plant and Equipment
Property, plant and equipment - gross	$ 33,656	$ 11,447

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived 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, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment.

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