Defined Benefit Pension Plans (Tables)

3 Months Ended

Jul. 31, 2022

Retirement Benefits [Abstract]

Pension Expenses

Pension expense / (income) consisted of the following (in thousands):

	Three Months Ended
	July 31, 2022		July 31, 2021
Service cost	$	—	$	—
Interest cost	322		177
Expected return on plan assets	(535)		(401)
Recognition of net loss	240		135
Net periodic pension expense (income)	$	27	$	(89)