RECEIVABLES (Schedule of Activity in the Allowance For Doubtful Accounts) (Details) - USD ($) $ in Thousands	6 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Allowance for Doubtful Accounts [Roll Forward]
Beginning balance	$ 82,480	$ 81,473
Provision	4,578	1,890
Charge-offs, recoveries and other	(4,382)	(1,217)
Ending balance	82,676	82,146
EAs
Allowance for Doubtful Accounts [Roll Forward]
Beginning balance	32,034	27,535
Provision	(2,709)	0
Charge-offs, recoveries and other	0	0
Ending balance	29,325	27,535
All Other
Allowance for Doubtful Accounts [Roll Forward]
Beginning balance	50,446	53,938
Provision	7,287	1,890
Charge-offs, recoveries and other	(4,382)	(1,217)
Ending balance	$ 53,351	$ 54,611