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Accumulated Other Comprehensive Loss - Summary of Impact of Accumulated Other Comprehensive Income Loss on Income Statement (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 29, 2013
Dec. 30, 2012
Jan. 01, 2012
Defined Benefit Plan Disclosure [Line Items]      
Reclassification to income, Pre-tax Activity $ 16,499 $ 3,665 $ 2,758
Reclassification to income, Tax Effect 6,383 1,442 1,085
Reclassification to income, Net of Tax 10,116 2,223 1,673
Cost of Sales [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Reclassification to income, Pre-tax Activity 1,528 411 315
S,D&A Expenses [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Reclassification to income, Pre-tax Activity 14,971 3,254 2,443
Pension Plans [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Reclassification to income, Pre-tax Activity 15,069 2,839 2,148
Reclassification to income, Tax Effect 5,827 1,118 845
Reclassification to income, Net of Tax 9,242 1,721 1,303
Pension Plans [Member] | Cost of Sales [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Reclassification to income, Pre-tax Activity 1,356 312 236
Pension Plans [Member] | S,D&A Expenses [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Reclassification to income, Pre-tax Activity 13,713 2,527 1,912
Postretirement Benefits [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Reclassification to income, Pre-tax Activity 1,430 826 610
Reclassification to income, Tax Effect 556 324 240
Reclassification to income, Net of Tax 874 502 370
Postretirement Benefits [Member] | Cost of Sales [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Reclassification to income, Pre-tax Activity 172 99 79
Postretirement Benefits [Member] | S,D&A Expenses [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Reclassification to income, Pre-tax Activity $ 1,258 $ 727 $ 531