Restructuring and Related Charges (Credits), Activity for Business Optimization Program (Details) - Business Optimization Program [Member] $ in Thousands	9 Months Ended
	Jan. 31, 2022 USD ($)
Activity for Restructuring and Related Charges Liability [Roll Forward]
Restructuring liability, beginning of period	$ 11,465
(Credits)	(2,861)
Payments	(5,225)
Foreign translation & other adjustments	(194)
Restructuring liability, end of period	3,185
Severance and Termination Benefits [Member]
Activity for Restructuring and Related Charges Liability [Roll Forward]
Restructuring liability, beginning of period	11,465
(Credits)	(2,861)
Payments	(5,225)
Foreign translation & other adjustments	(194)
Restructuring liability, end of period	$ 3,185