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Funded Status and Amounts Recognized in Consolidated Balance Sheets (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 01, 2022
Jan. 02, 2021
Dec. 28, 2019
Change in benefit obligation:      
Actuarial loss (gain) $ 1,228 [1] $ (3,718) [1] $ (45,979)
Change in plan assets:      
Noncurrent asset 1,281    
Current liability (804) (874)  
Noncurrent liability (7,249) (10,049)  
Pension plans      
Change in benefit obligation:      
Benefit obligation at beginning of year 37,650 396,906  
Service cost 971 854 703
Interest cost 758 2,108 11,930
Actuarial loss (gain) (1,228) (13,657)  
Benefits paid (1,662) (7,762)  
Settlements (1,699) (340,799)  
Benefit obligation at end of year 34,790 37,650 396,906
Change in plan assets:      
Fair value of plan assets at beginning of year 34,750 360,675  
Actual return on plan assets 1,929 15,790 51,800
Employer contribution 271 7,871 2,771
Benefits paid (1,662) (7,762)  
Transfer payments   (1,025)  
Settlements (1,699) (340,799)  
Fair value of plan assets at end of year 33,589 34,750 360,675
Fair value of plan assets at end of year 33,589 34,750 360,675
Benefit obligation at end of year 34,790 37,650 396,906
Unfunded status and amount recognized at end of year (1,201) (2,900)  
Noncurrent asset 1,281    
Current liability (258) (259)  
Noncurrent liability (2,224) (2,641)  
Amount recognized at end of year (1,201) (2,900)  
Net actuarial (gain) loss before taxes 7,913 10,347  
Prior service cost before taxes 198 255  
Amounts recognized in accumulated other comprehensive income (loss) 8,111 10,602  
Accumulated benefit obligation at end of year 32,950 36,104  
Postretirement Benefit Plans      
Change in benefit obligation:      
Benefit obligation at beginning of year 8,023 7,477  
Service cost 337 285 283
Interest cost 119 194 297
Participant contributions 453 573 700
Actuarial loss (gain) 238 642  
Plan amendments (2,214)    
Benefits paid (1,384) (1,148)  
Benefit obligation at end of year 5,572 8,023 7,477
Change in plan assets:      
Employer contribution 931 575  
Benefits paid (1,384) (1,148)  
Participant contributions 453 573 700
Benefit obligation at end of year 5,572 8,023 $ 7,477
Unfunded status and amount recognized at end of year (5,572) (8,023)  
Current liability (547) (615)  
Noncurrent liability (5,025) (7,408)  
Amount recognized at end of year (5,572) (8,023)  
Net actuarial (gain) loss before taxes (1,286) (1,735)  
Prior service cost before taxes (2,216) (5)  
Amounts recognized in accumulated other comprehensive income (loss) $ (3,502) $ (1,740)  
[1] Includes only losses from plans remaining on or after December 31, 2020