STOCKHOLDERS' EQUITY - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net change in AOCL	$ 98,381	$ 53,612
Cost of sales	1,478,687	1,588,133	$ 1,706,109
Interest and other financing expense, net	8,654	18,258	22,517
Other (income) expense, net	(10,067)	3,956	$ 994
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	85,581	(37,847)
Amounts reclassified into income (expense)	16,073	95,120
Deferred gains/(losses) on cash flow hedging instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	(810)	(1,413)
Amounts reclassified into income (expense)	1,290	617
Deferred gains/(losses) on cash flow hedging instruments | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of sales	68	103
Interest and other financing expense, net	(150)	72
Other (income) expense, net	(1,556)	(959)
Deferred gains/(losses) on net investment hedging instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	(3,359)	(2,788)
Amounts reclassified into income (expense)	(394)	(77)
Reclassification from AOCI, before tax	498	98
Intra-entity foreign currency transactions
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	$ 0	$ (898)