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Discontinued Operations (Details) (Composite Material Division [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Composite Material Division [Member]
   
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Net sales associated with the discontinued operations $ 0.2 $ 5.3
Income (loss) from discontinued operations, net of income taxes 0.1  
Discontinued operations, tax effect $ 0.1