Annual report pursuant to Section 13 and 15(d)

Property, Plant, And Equipment, Net (Schedule Of Property, Plant, And Equipment, Net) (Details)

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Property, Plant, And Equipment, Net (Schedule Of Property, Plant, And Equipment, Net) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 526,796 $ 472,812
Less accumulated depreciation (275,886) (250,999)
Property, plant and equipment, net 250,910 221,813
Land And Improvements [Member]
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 20,690 16,898
Buildings And Building Improvements [Member]
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 155,672 144,004
Machinery And Equipment [Member]
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 198,387 193,104
Furniture And Fixtures [Member]
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 50,108 46,147
Leasehold Improvements [Member]
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 65,476 62,884
Construction In Progress [Member]
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 36,463 $ 9,775