Pension Benefits (Tables)

6 Months Ended

Oct. 31, 2020

Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]

Net Periodic Pension (Benefit) Cost

Net periodic pension benefit cost consisted of the following for the three- and six-month periods ended October 31, 2020 and 2019: 

	Three Months Ended				Six Months Ended
	October 31,				October 31,
(in thousands)	2020		2019		2020		2019
Interest cost	$	1,166	$	1,494	$	2,331	$	2,987
Expected return on plan assets	(2,108)		(2,082)		(4,215)		(4,163)
Recognized net actuarial loss	440		423		880		846
Net periodic pension benefit	$	(502)	$	(165)	$	(1,004)	$	(330)