Property And Equipment, Net (Schedule Of Property And Equipment, Net) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Property and Equipment [Line Items]
Property and equipment	$ 1,035,700,000	$ 863,400,000
Less accumulated depreciation and amortization	(417,000,000)	(375,300,000)
Property and equipment, net	618,672,000	488,132,000
Land [Member]
Property and Equipment [Line Items]
Property and equipment	4,600,000	4,800,000
Building and Leasehold Improvements [Member]
Property and Equipment [Line Items]
Property and equipment	19,000,000	18,000,000
Machinery and Equipment [Member]
Property and Equipment [Line Items]
Property and equipment	879,400,000	727,100,000
Office Furniture and Equipment [Member]
Property and Equipment [Line Items]
Property and equipment	114,400,000	102,500,000
Construction in Progress [Member]
Property and Equipment [Line Items]
Property and equipment	$ 18,300,000	$ 11,000,000