Property And Equipment, Net (Schedule Of Property And Equipment, Net) (Details) (USD $)	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Property and equipment gross	$ 482,500,000	$ 350,200,000
Less accumulated depreciation	(215,900,000)	(169,400,000)
Property and equipment, net	266,583,000	180,786,000
Land [Member]
Property and equipment gross	4,700,000	4,700,000
Buildings And Leasehold Improvements [Member]
Property and equipment gross	12,500,000	11,100,000
Estimated Useful Lives, minimum	5
Estimated Useful Lives, maximum	40
Machinery And Equipment [Member]
Property and equipment gross	388,200,000	274,500,000
Estimated Useful Lives, minimum	2
Estimated Useful Lives, maximum	15
Office Furniture And Equipment [Member]
Property and equipment gross	$ 77,100,000	$ 59,900,000
Estimated Useful Lives, minimum	3
Estimated Useful Lives, maximum	7

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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