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Accumulated Other Comprehensive Income or Loss - Schedule Of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 30, 2023
Dec. 31, 2022
Jan. 01, 2022
Accumulated Other Comprehensive Income Loss [Line Items]      
Balance at beginning of the year, net of tax $ 766,068 $ 782,869 $ 735,049
Other comprehensive (loss) income, net of tax (2,183) 4,434 821
Balance at end of the year, net of tax 778,182 766,068 782,869
Total accumulated other comprehensive income (loss) 796 2,979 (1,455)
Interest rate swap      
Accumulated Other Comprehensive Income Loss [Line Items]      
Other comprehensive income before reclassifications 1,419 0 0
Income tax expense (332) 0 0
Other comprehensive income (loss), net of tax, before reclassifications 1,087 0 0
Reclassification into net earnings [1] (1,832) 0 0
Income tax benefit (expense) [2] 429 0 0
Amounts reclassified out of AOCI, net of tax (1,403) 0 0
Other comprehensive (loss) income, net of tax (316) 0 0
Total accumulated other comprehensive income (loss) (316)    
Postretirement benefit plans      
Accumulated Other Comprehensive Income Loss [Line Items]      
Other comprehensive income before reclassifications 203 6,576 837
Income tax expense (51) (1,614) (203)
Other comprehensive income (loss), net of tax, before reclassifications 152 4,962 634
Reclassification into net earnings [3] (2,677) (701) 250
Income tax benefit (expense) [2] 658 173 (63)
Amounts reclassified out of AOCI, net of tax (2,019) (528) 187
Other comprehensive (loss) income, net of tax (1,867) 4,434 821
Accumulated Other Comprehensive Income (Loss) [Member]      
Accumulated Other Comprehensive Income Loss [Line Items]      
Balance at beginning of the year, net of tax 2,979 (1,455) (2,276)
Other comprehensive (loss) income, net of tax (2,183) 4,434 821
Balance at end of the year, net of tax 796 2,979 (1,455)
Accumulated Other Comprehensive Income (Loss) [Member] | Interest rate swap      
Accumulated Other Comprehensive Income Loss [Line Items]      
Balance at beginning of the year, net of tax 0 0 0
Balance at end of the year, net of tax (316) 0 0
Accumulated Other Comprehensive Income (Loss) [Member] | Postretirement benefit plans      
Accumulated Other Comprehensive Income Loss [Line Items]      
Balance at beginning of the year, net of tax 2,979 (1,455) (2,276)
Balance at end of the year, net of tax $ 1,112 $ 2,979 $ (1,455)
[1] Reclassified from AOCI into Interest expense.
[2] Reclassified from AOCI into Income tax expense (benefit).
[3] Reclassified from AOCI into Other, net, or Selling, general and administrative expense. Amounts include amortization of net actuarial loss, amortization of prior service credit, and settlement expense totaling $0.4 million and $0.7 million in 2023 and 2022, respectively. There was no settlement expense in 2021.