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Property, Plant and Equipment (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Land
Dec. 31, 2011
Land
Dec. 31, 2012
Buildings and improvements
Dec. 31, 2011
Buildings and improvements
Dec. 31, 2012
Machinery and equipment
Dec. 31, 2011
Machinery and equipment
Dec. 31, 2012
Computer software
Dec. 31, 2011
Computer software
Dec. 31, 2012
Furniture and office equipment
Dec. 31, 2011
Furniture and office equipment
Dec. 31, 2012
Construction in progress
Dec. 31, 2011
Construction in progress
Dec. 31, 2012
Minimum [Member]
Dec. 31, 2012
Minimum [Member]
Buildings and improvements
Dec. 31, 2012
Minimum [Member]
Machinery and equipment
Dec. 31, 2012
Minimum [Member]
Computer software
Dec. 31, 2012
Minimum [Member]
Furniture and office equipment
Dec. 31, 2012
Maximum [Member]
Dec. 31, 2012
Maximum [Member]
Buildings and improvements
Dec. 31, 2012
Maximum [Member]
Machinery and equipment
Dec. 31, 2012
Maximum [Member]
Computer software
Dec. 31, 2012
Maximum [Member]
Furniture and office equipment
Property, Plant and Equipment [Line Items]                                                
Property, plant and equipment, gross $ 751,976 $ 661,857 $ 15,907 $ 15,686 $ 283,173 $ 275,529 $ 206,871 $ 176,662 $ 86,280 $ 65,344 $ 80,343 $ 76,809 $ 79,402 $ 51,827                    
Less: Accumulated depreciation and amortization (333,044) (290,065)                                            
Property, plant and equipment, net $ 418,932 $ 371,792                                            
Estimated useful life minimum                             1 year 2 years 3 years 1 year 1 year 40 years 40 years 20 years 10 years 13 years