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Deferred Compensation Plan - Additional Information (Detail) (USD $)
 3 Months Ended 6 Months Ended
Jul. 04, 2014
Jun. 28, 2013
Jul. 04, 2014
Jun. 28, 2013
Jan. 03, 2014
Deferred Compensation, Excluding Share-based Payments and Retirement Benefits
          
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]          
Trading securities $ 42,448,000   $ 42,448,000   $ 37,979,000
Deferred compensation plan vested amounts due 44,169,000   44,169,000   37,926,000
Change in market value of trust assets $ 1,952,000 $ 168,000 $ 2,682,000 $ 2,234,000  
Maximum
          
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]          
Percentage of compensation deferred     100.00%