Property And Equipment, Net (Schedule Of Property And Equipment, Net) (Detail) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property and equipment	$ 686,200,000	$ 631,300,000
Less accumulated depreciation and amortization	(303,000,000)	(280,900,000)
Property and equipment, net	383,174,000	350,378,000
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	4,800,000	4,800,000
Building and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	15,500,000	15,400,000
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	565,300,000	518,300,000
Office Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	$ 100,500,000	$ 92,800,000

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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