Quarterly report pursuant to Section 13 or 15(d)

Acquisitions (Details)

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Acquisitions (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Jul. 02, 2011
Schedule of revenue and earnings of combined entity    
Actual from 01/01/2012 - 06/30/2012, Revenue (unaudited) $ 1,962 $ 107,375
Supplemental pro forma from 01/02/2011 to 07/02/2011, Earnings (unaudited) $ (253) $ 20,116