Property, Plant and Equipment, At Cost (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 3,640,792	$ 3,618,560
Less accumulated depreciation	(2,274,723)	(2,141,906)
Property, plant and equipment, net	1,366,069	1,476,654
Land and Land Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	107,250	102,483
Building
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	390,363	377,664
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	3,048,932	3,045,145
Construction in Progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	67,051	66,098
Other Capitalized Property Plant and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 27,196	$ 27,170

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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