Property, Plant and Equipment, Net (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 2,569,878	$ 2,256,551
Accumulated depreciation	(1,505,170)	(1,406,831)
Property, plant and equipment, net	1,064,708	849,720
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	58,322	11,065
Buildings and Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	284,249	241,498
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,146,010	1,940,579
Construction in Progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 81,297	$ 63,409

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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