Pensions and Other Post-employment Benefits (Tables)

6 Months Ended

Jun. 26, 2020

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

The following is a summary of the net periodic benefit cost for the second quarter and first six months of 2020 and 2019 for the domestic pension plans (which include the defined benefit pension plan and the supplemental retirement plans) and the domestic retiree medical plan.

	Pension Benefits				Other Benefits
	Second Quarter Ended				Second Quarter Ended
	June 26,		June 28,		June 26,		June 28,
(Thousands)	2020		2019		2020		2019
Components of net periodic benefit cost (credit)
Service cost	$	—	$	1,418	$	15	$	18
Interest cost	1,215		1,347		53		99
Expected return on plan assets	(2,205)		(2,167)		—		—
Amortization of prior service cost (benefit)	—		122		(374)		(375)
Amortization of net loss (gain)	284		627		(83)		(23)
Net periodic benefit (credit) cost	$	(706)	$	1,347	$	(389)	$	(281)
Net pension settlements/curtailments	94		3,296		—		—
Total net benefit cost	$	(612)	$	4,643	$	(389)	$	(281)

	Pension Benefits				Other Benefits
	Six Months Ended				Six Months Ended
	June 26,		June 28,		June 26,		June 28,
(Thousands)	2020		2019		2020		2019
Components of net periodic benefit cost (credit)
Service cost	$	—	$	2,758	$	31	$	35
Interest cost	2,429		2,904		107		199
Expected return on plan assets	(4,410)		(4,290)		—		—
Amortization of prior service cost (benefit)	—		242		(749)		(749)
Amortization of net loss (gain)	568		1,431		(166)		(46)
Net periodic benefit (credit) cost	$	(1,413)	$	3,045	$	(777)	$	(561)
Net pension settlements/curtailments	94		3,296		—		—
Total net benefit cost	$	(1,319)	$	6,341	$	(777)	$	(561)