Property, Plant, and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 777,569	$ 768,115	$ 764,505
Less: accumulated depreciation	537,079	538,388	532,724
Property, plant and equipment	240,490	229,727	231,781
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	26,681	23,197	21,554
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	268,003	264,081	257,819
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	465,014	468,926	474,911
Construction and Equipment Installation in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 17,871	$ 11,911	$ 10,221

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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