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Defined Benefit Pension Plans (Tables)
9 Months Ended
Jan. 31, 2023
Retirement Benefits [Abstract]  
Pension Expenses
Pension expense / (income) consisted of the following (in thousands):
Three Months Ended
January 31, 2023January 31, 2022
Service cost$— $— 
Interest cost211 177 
Expected return on plan assets(350)(401)
Recognition of net loss157 136 
Net periodic pension expense (income)$18 $(88)
Nine Months Ended
January 31, 2023January 31, 2022
Service cost$— $— 
Interest cost633 531 
Expected return on plan assets(1,051)(1,203)
Recognition of net loss471 406 
Net periodic pension expense (income)$53 $(266)