DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE (Statements of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net (loss) income from discontinued operations, net of tax	$ (460)	$ (697)	$ (2,816)	$ (102,068)	$ (6,215)	$ (74,620)	$ (34,714)	$ (14,338)	$ (106,041)	$ (129,887)	$ (65,050)
Hain Pure Protein | Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales									0	408,109	509,475
Cost of sales									0	409,433	486,023
Gross (loss) profit									0	(1,324)	23,452
Asset impairments						51,348	$ 54,946	$ 2,958	0	109,252	78,464
Selling, general and administrative expense									0	16,384	18,743
Other expense									0	9,088	4,699
Loss on sale of discontinued operations						$ 40,223			3,043	40,859	0
Net (loss) income from discontinued operations before income taxes									(3,043)	(176,907)	(78,454)
Benefit for income taxes									(684)	(43,538)	(5,720)
Net (loss) income from discontinued operations, net of tax									(2,359)	(133,369)	(72,734)
Tilda | Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales									30,399	197,862	192,099
Cost of sales									26,648	151,146	143,908
Gross (loss) profit									3,751	46,716	48,191
Selling, general and administrative expense									5,185	26,949	25,349
Other expense									1,172	2,189	3,536
Interest expense									2,432	13,561	10,538
Foreign currency translation gains (losses)									95,120	0	0
Loss on sale of discontinued operations		$ 540	$ 3,752						(9,386)	0	0
Net (loss) income from discontinued operations before income taxes									(90,772)	4,017	8,768
Benefit for income taxes									12,909	535	1,084
Net (loss) income from discontinued operations, net of tax									(103,681)	$ 3,482	$ 7,684
Tax effect of gain (Loss) from disposal of discontinued operation									$ 13,960