Annual report pursuant to Section 13 and 15(d)

Fair Value of Investment Held by Pension Plan (Detail)

v3.3.1.900
Fair Value of Investment Held by Pension Plan (Detail) - USD ($)
$ in Thousands
Jan. 02, 2016
Jan. 03, 2015
Dec. 28, 2013
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets $ 1,755,374 $ 1,628,254 $ 1,467,526
Fair Value      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets 53,218 47,902  
Fair Value | Cash Equivalents      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets 2,790 3,220  
Fair Value | US Treasury and Government      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets 11 16  
Fair Value | Insurance Contracts      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets 50,856 46,059  
Fair Value | Commodity Contract      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets (439) (1,393)  
Fair Value | Quoted Prices In Active Markets For Identical Assets, Level 1      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets 2,351 1,827  
Fair Value | Quoted Prices In Active Markets For Identical Assets, Level 1 | Cash Equivalents      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets 2,790 3,220  
Fair Value | Quoted Prices In Active Markets For Identical Assets, Level 1 | Commodity Contract      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets (439) (1,393)  
Fair Value | Significant Other Observable Inputs, Level 2      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets 50,867 46,075  
Fair Value | Significant Other Observable Inputs, Level 2 | US Treasury and Government      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets 11 16  
Fair Value | Significant Other Observable Inputs, Level 2 | Insurance Contracts      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets 50,856 46,059  
Net Asset Value      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets [1] 1,702,156 1,580,352  
Net Asset Value | Cash Equivalents      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets [1] 23,538 61,788  
Net Asset Value | Corporate Government and Foreign Bonds      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets [1] 1,232,691 986,125  
Net Asset Value | Alternative Investments      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets [1] 159,481 132,922  
Net Asset Value | U.S. | Equity Securities      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets [1] 107,190 180,258  
Net Asset Value | Foreign | Equity Securities      
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract]      
Defined Benefit Plan, Fair Value of Plan Assets [1] $ 179,256 $ 219,259  
[1] As discussed in Note A, investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have been removed from the total plan assets in the fair value hierarchy.