Balance Sheet Components (Property, Plant and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 2,535,343	$ 2,484,011
Less accumulated depreciation	1,113,454	1,086,795
Total property, plant and equipment, net	1,421,889	1,397,216
Land and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	77,100	73,857
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	673,001	665,058
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,526,695	1,436,904
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 258,547	$ 308,192

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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