Components of Net Periodic Benefit (Income) Cost (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jan. 01, 2022	Dec. 30, 2023	Dec. 31, 2022	Jan. 01, 2022
Defined Benefit Plan Disclosure [Line Items]
Settlement loss	$ (400)
Total recognized in net periodic cost (benefit) and OCI		$ (390)	$ (2,851)	$ (1,426)
Pension plans
Defined Benefit Plan Disclosure [Line Items]
Service cost		682	1,188	971
Interest cost		1,304	884	758
Expected return on plan assets		(1,561)	(1,874)	(1,867)
Settlement loss				403
Amortization of prior service cost (credit)		57	57	57
Amortization of net (gain) loss		173	461	742
Net periodic benefit (income) cost		655	716	1,064
Current year actuarial loss (gain)		(815)	(3,049)	(1,288)
Settlement loss				(403)
Amortization of prior service (cost) credit		(57)	(57)	(57)
Amortization of actuarial gain (loss)		(173)	(461)	(742)
Total recognized in OCI		$ (1,045)	$ (3,567)	$ (2,490)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]		Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component Excluding Settlement Loss Excluding Curtailment	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component Excluding Settlement Loss Excluding Curtailment	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component Excluding Settlement Loss Excluding Curtailment
Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost		$ 177	$ 214	$ 337
Interest cost		239	112	119
Amortization of prior service cost (credit)		(234)	(237)	(3)
Amortization of net (gain) loss		(247)	(176)	(211)
Net periodic benefit (income) cost		(65)	(87)	242
Current year actuarial loss (gain)		187	(620)	238
Current year actuarial gain				(2,214)
Amortization of prior service (cost) credit		234	237	3
Amortization of actuarial gain (loss)		247	176	211
Total recognized in OCI		668	(207)	(1,762)
Total recognized in net periodic cost (benefit) and OCI		$ 603	$ (294)	$ (1,520)