INCOME TAXES - Expense (Benefit) (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Income before income taxes
United States	$ 68,239		$ 130,175	$ 35,446	$ (3,776)
Foreign	100,597		209,468	157,150	110,353
Income before income taxes	168,836	$ 180,316	339,643	192,596	106,577
Current:
Federal	19,285		38,146	18,320	(6,974)
State	(503)		867	347	(13)
Foreign	8,716		(2,602)	10,078	26,230
Total current income tax expense	27,498		36,411	28,745	19,243
Deferred and others:
Federal	104		376	(1,047)	916
State	2		(2)	(19)	17
Foreign	2,404		82	(31,333)	(2,678)
Total deferred and other income tax expense (benefit)	2,510	(8,405)	456	(32,399)	(1,745)
Total income tax expense (benefit)	$ 30,008	$ 13,654	$ 36,867	$ (3,654)	$ 17,498