Pension and Other Postretirement Obligations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Pension Obligations
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 748	$ 690
Interest cost	3,676	3,744
Expected return on plan assets	(4,047)	(4,109)
Amortization of prior service cost	45	43
Actuarial gains	(26)	(226)
Net periodic benefit cost	396	142
Other Postretirement Obligations
Defined Benefit Plan Disclosure [Line Items]
Service cost	10	3
Interest cost	238	251
Expected return on plan assets	0	0
Amortization of prior service cost	0	0
Actuarial gains	(117)	(191)
Net periodic benefit cost	$ 131	$ 63