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Discontinued Operations and Assets Held for Sale - Results of Discontinued Operations (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Discontinued Operations and Disposal Groups [Abstract]        
Net sales $ 0 $ 11,930 $ 0 $ 34,670
Income from discontinued operations before income tax expense 0 2,050 0 5,450
Income tax expense 0 (760) 0 (2,020)
Income from discontinued operations, net of income tax expense $ 0 $ 1,290 $ 0 $ 3,430