INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Operating Loss Carryforwards [Line Items]
Proceeds from income tax refunds		$ 32,998
Operating loss carryback, CARES Act		53,817
Cash paid for income taxes, net of refunds			$ 16,162	$ 22,535
Reversal of undistributed earnings of foreign subsidiaries	$ 93,359
Unremitted earnings of foreign subsidiaries	1,212	1,172	1,212
Foreign earnings not permanently reinvested		116,895
Undistributed earnings of foreign subsidiaries		732,065
Valuation allowances	41,941	37,453	41,941	34,912
Unrecognized tax benefits	20,899	22,870	20,899	11,869	$ 6,730
Unrecognized tax benefits that would impact effective tax rate	17,087	19,058	17,087	$ 8,057
Interest and penalties, accrued	2,166	2,549	2,166
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	19,141	59,514	19,141
Foreign
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 12,587	$ 15,441	$ 12,587