Pension and retirement plans (Tables)

3 Months Ended

Sep. 28, 2019

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Components of net periodic pension costs

	First Quarters Ended
	September 28,		September 29,
	2019		2018
	(Thousands)
Service cost	$	3,786	$	3,734
Total net periodic pension cost within selling, general and administrative expenses		3,786		3,734
Interest cost		5,638		6,614
Expected return on plan assets		(12,668)		(13,301)
Amortization of prior service cost (credit)		534		(393)
Recognized net actuarial loss		3,637		2,535
Total net periodic pension benefit within other income (expense), net		(2,859)		(4,545)
Net periodic pension cost (benefit)	$	927	$	(811)