Pension Benefits (Tables)

6 Months Ended

Oct. 31, 2021

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, 2021 and 2020: 

	Three Months Ended				Six Months Ended
	October 31,				October 31,
(in thousands)	2021		2020		2021		2020
Interest cost	$	1,349	$	1,166	$	2,698	$	2,331
Expected return on plan assets	(1,543)		(2,108)		(3,086)		(4,215)
Recognized net actuarial loss	498		440		997		880
Net periodic pension benefit	$	304	$	(502)	$	609	$	(1,004)