Property, Plant and Equipment (Schedule Of Property, Plant And Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2012	Sep. 30, 2011
Property, Plant and Equipment
Total property, plant and equipment, gross	$ 703,040	$ 673,238
Accumulated depreciation	450,728	421,873
Total property, plant and equipment, net	252,312	251,365
Land and improvements
Property, Plant and Equipment
Total property, plant and equipment, gross	11,572	11,024
Building and improvements
Property, Plant and Equipment
Total property, plant and equipment, gross	56,616	53,397
Furniture and fixtures
Property, Plant and Equipment
Total property, plant and equipment, gross	26,861	26,325
Machinery and equipment
Property, Plant and Equipment
Total property, plant and equipment, gross	586,437	568,563
Construction in progress
Property, Plant and Equipment
Total property, plant and equipment, gross	$ 21,554	$ 13,929

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, at the balance sheet date, of long-lived physical assets used in the normal conduct of business and not intended for resale. This can include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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- Definition

Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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