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Rationalizations Rationalization Text (Details) (USD $)
 3 Months Ended
Mar. 31, 2014
metric_tons
Mar. 31, 2013
Restructuring and related severance costs $ 17,433,000  
Estimated Reduction in Capacity 60,000  
Restructuring and Related Cost, Incurred Cost 86,000 0
Restructuring and Related Cost, Expected Cost 95,000,000  
Restructuring and Related Cost, Expected Number of Positions Eliminated 600  
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent   20.00%
Restructuring and related - expected cash outlays 25,000,000  
Expected Rationalization Charges For Following Year 70,000,000  
Other Rationalization Charges in Cost of Sales 321,000  
Engineered Solutions [Member]
    
Restructuring and related severance costs 413,000  
Restructuring and Related Cost, Expected Cost 4,500,000  
Restructuring and Related Cost, Expected Number of Positions Eliminated 40  
Restructuring and related - expected cash outlays 1,000,000  
Expected Rationalization Charges For Following Year 3,500,000  
Other Rationalization Charges in Cost of Sales 0  
Industrial Materials [Member]
    
Restructuring and related severance and contract termination costs 100,000  
Restructuring Reserve, Accelerated Depreciation 17,020,000  
Other Rationalization Charges in Cost of Sales $ 321,000