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Funded Status and Amounts Recognized in Consolidated Balance Sheets (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Jan. 01, 2022
Jan. 02, 2021
Change in benefit obligation:      
Actuarial loss (gain) $ 9,253 $ 1,228 $ (3,718)
Change in plan assets:      
Noncurrent postretirement benefit plan asset 4,902 1,281  
Current liability (710) (804)  
Noncurrent liability (5,814) (7,249)  
Pension plans      
Change in benefit obligation:      
Benefit obligation at beginning of year 34,790 37,650  
Service cost 1,188 971 854
Interest cost 884 758 2,108
Actuarial loss (gain) (9,253) (1,228)  
Benefits paid (2,440) (1,662)  
Settlements   (1,699)  
Benefit obligation at end of year 25,169 34,790 37,650
Change in plan assets:      
Fair value of plan assets at beginning of year 33,589 34,750  
Actual (loss) return on plan assets (4,330) 1,929 51,800
Employer contribution 1,271 271 7,871
Benefits paid (2,440) (1,662)  
Settlements   (1,699)  
Fair value of plan assets at end of year 28,090 33,589 34,750
Fair value of plan assets at end of year 28,090 33,589 34,750
Benefit obligation at end of year 25,169 34,790 37,650
Funded (unfunded) status and amount recognized at end of year 2,921 (1,201)  
Noncurrent postretirement benefit plan asset 4,902    
Current liability (250) (258)  
Noncurrent liability (1,731) (2,224)  
Amount recognized at end of year 2,921 (1,201)  
Net actuarial (gain) loss before taxes 4,403 7,913  
Prior service cost before taxes 141 198  
Amounts recognized in accumulated other comprehensive income (loss) 4,544 8,111  
Accumulated benefit obligation at end of year 24,192 32,950  
Postretirement Benefit Plans      
Change in benefit obligation:      
Benefit obligation at beginning of year 5,572 8,023  
Service cost 214 337 285
Interest cost 112 119 194
Participant contributions 392 453 600
Actuarial loss (gain) (620) 238  
Plan amendments   (2,214)  
Benefits paid (1,128) (1,384)  
Benefit obligation at end of year 4,542 5,572 8,023
Change in plan assets:      
Employer contribution 736 931  
Participant contributions 392 453 600
Benefits paid (1,128) (1,384)  
Benefit obligation at end of year 4,542 5,572 $ 8,023
Funded (unfunded) status and amount recognized at end of year (4,542) (5,572)  
Current liability (459) (547)  
Noncurrent liability (4,083) (5,025)  
Amount recognized at end of year (4,542) (5,572)  
Net actuarial (gain) loss before taxes (1,730) (1,286)  
Prior service cost before taxes (1,979) (2,216)  
Amounts recognized in accumulated other comprehensive income (loss) $ (3,709) $ (3,502)