OTHER INCOME AND OTHER EXPENSES (Schedule of Interest Income and Expense of Continuing Operations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Other Income and Expenses [Abstract]
Interest income	$ 1,159	$ 8,026
Foreign currency gains (losses), net	392	9
Other, net	1,660	1,088
Other income (expense), net	$ 3,211	$ 9,123