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CONDENSED CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Sep. 29, 2013
Dec. 30, 2012
Trade receivables, allowance $ 5,614 $ 5,920
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Treasury stock, shares 569,258 6,034
Common Class A
   
Common stock, shares authorized 200,000,000 200,000,000
Common stock, shares issued 62,106,570 61,098,820
Common Class B
   
Common stock, shares authorized 60,000,000 60,000,000
Common stock, shares issued 24,800,962 24,800,962