Property, Plant And Equipment (Summary Of Property, Plant And Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 3,639,857	$ 3,518,392
Less accumulated depreciation and amortization	1,927,703	1,831,268
Net property, plant and equipment	1,712,154	1,687,124
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	180,584	186,406
Buildings And Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	682,395	703,939
Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	2,470,485	2,361,605
Furniture And Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	90,963	82,287
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	54,501	54,156
Construction In Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 160,929	$ 129,999