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Benefit Plans - Change in Plan Assets (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 29, 2013
Dec. 30, 2012
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at end of year $ 200,824 $ 206,555
Pension Plans [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at beginning of year 206,555 168,502
Actual return on plan assets 30,493 20,156
Employer contributions 7,275 25,017
Benefits paid (43,499) (7,120)
Fair value of plan assets at end of year $ 200,824 $ 206,555