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Discontinued Operations (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jul. 01, 2012
Jun. 30, 2013
Jul. 01, 2012
Discontinued Operations [Line Items]        
Loss from discontinued operations, net of tax $ (4,947) $ (452) $ (5,683) $ (1,061)