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Discontinued Operations - Schedule of Net Sales and Income Before Taxes from Discontinued Operations (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 29, 2013
Jun. 30, 2012
Jun. 29, 2013
Jun. 30, 2012
Discontinued Operations And Disposal Groups [Abstract]        
Net sales    $ 679    $ 2,892
Income before taxes    $ 3,046    $ 3,113