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Performance-Contingent Restricted Stock Activity (Detail) (Performance Contingent Restricted Stock, USD $)
In Thousands, except Per Share data, unless otherwise specified
 12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Performance Contingent Restricted Stock
      
Number of Shares      
Outstanding unvested at beginning of period 888 864 851
Number of Shares, Initial grant 828 412 486
Number of Shares, Supplemental grant for exceeding the S&P TSR 95    
Number of Shares, Vested (571) (320) (362)
Number of Shares, Grant reduction for not achieving the S&P TSR   (65) (90)
Number of Shares, Forfeitures (11) (3) (21)
Outstanding unvested at end of period 1,229 888 864
Weighted Average Fair Value      
Weighted Average Fair Value, Balance at beginning of period $ 12.61 $ 11.11 $ 11.39
Weighted Average Fair Value, Initial grant $ 16.37 $ 14.91 $ 10.62
Weighted Average Fair Value, Supplemental grant for exceeding the S&P TSR $ 10.62    
Weighted Average Fair Value, Vested $ 10.62 $ 11.72 $ 11.09
Weighted Average Fair Value, Grant reduction for not achieving the S&P TSR   $ 11.72 $ 11.09
Weighted Average Fair Value, Forfeitures $ 15.88 $ 11.44 $ 11.21
Weighted Average Fair Value, Balance at end of period $ 15.88 $ 12.61 $ 11.11