Pension Plans (Tables)

6 Months Ended

Oct. 27, 2018

Pension Plans

Schedule of net periodic pension costs

	Quarter Ended				Six Months Ended
(Unaudited, amounts in thousands)	10/27/18		10/28/17		10/27/18		10/28/17
Service cost	$	323	$	329	$	646	$	658
Interest cost		1,116		1,147		2,232		2,294
Expected return on plan assets		(1,136)		(1,204)		(2,272)		(2,408)
Net amortization		639		780		1,278		1,560
Net periodic pension cost	$	942	$	1,052	$	1,884	$	2,104