Pension and Postretirement Benefit Obligations (Tables)

3 Months Ended

Mar. 29, 2024

Retirement Benefits [Abstract]

Summary of Components of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost

The components of net periodic pension cost related to the Bargaining Plan during the first quarter of 2024 and both the Bargaining Plan and the Primary Plan during the first quarter of 2023 were as follows:

	First Quarter
(in thousands)	2024		2023
Service cost	$	1,091	$	1,099
Interest cost	589		3,508
Expected return on plan assets	(763)		(2,914)
Recognized net actuarial loss	—		973
Amortization of prior service cost	4		4
Net periodic pension cost	$	921	$	2,670

The components of net periodic postretirement benefit cost were as follows:

	First Quarter
(in thousands)	2024		2023
Service cost	$	310	$	294
Interest cost	781		698
Recognized net actuarial loss	26		—
Net periodic postretirement benefit cost	$	1,117	$	992