Pension and Postretirement Benefit Obligations (Tables)

3 Months Ended

Mar. 29, 2020

Retirement Benefits [Abstract]

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

The components of net periodic pension cost were as follows:

	First Quarter
(in thousands)	2020		2019
Service cost	$	1,659	$	1,207
Interest cost	2,760		3,063
Expected return on plan assets	(3,383)		(2,574)
Recognized net actuarial loss	1,189		901
Amortization of prior service cost	5		5
Net periodic pension cost	$	2,230	$	2,602

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

	First Quarter
(in thousands)	2020		2019
Service cost	$	376	$	389
Interest cost	503		693
Recognized net actuarial loss	88		196
Amortization of prior service cost	—		(324)
Net periodic postretirement benefit cost	$	967	$	954