REVENUE RECOGNITION (Deferred Revenue) (Details) - POM - USD ($) $ in Thousands	2 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Apr. 30, 2020
Movement in Deferred Revenue [Roll Forward]
Contract with Customer, Liability	$ 172,800
Deferred Revenue
Movement in Deferred Revenue [Roll Forward]
Contract with Customer, Liability	183,871	$ 183,685
Amounts deferred	12,464	8,743
Amounts recognized on previous deferrals	(23,576)		$ (24,601)
Contract with Customer, Liability	172,759	167,827	183,685
Deferred Wages
Movement in Deferred Revenue [Roll Forward]
Contract with Customer, Liability	20,169	21,618
Amounts deferred	8	117
Amounts recognized on previous deferrals	(2,310)	(3,028)
Contract with Customer, Liability	$ 17,867	$ 18,707	$ 21,618