DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE (Narrative) (Details) - USD ($) $ in Thousands				1 Months Ended		3 Months Ended					12 Months Ended
	Aug. 27, 2019	Jun. 28, 2019	Feb. 15, 2019	Jun. 30, 2020	Jan. 31, 2020	Mar. 31, 2020	Dec. 31, 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]
Current liabilities of discontinued operations				$ 0							$ 0	$ 31,703
Goodwill impairment				394							394	0	$ 7,700
Long-lived asset and intangibles impairment							$ 1,889				27,493	33,719	14,033
Current assets of discontinued operations				0							0	110,048
Hain Pure Protein | Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Asset impairments								$ 51,348	$ 54,946	$ 2,958	0	109,252	78,464
Pre-tax loss								(40,223)			(3,043)	(40,859)	0
Net of tax loss								$ 29,511
Plainville Farms | Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture			$ 25,000
Letter of credit			$ 10,000
Expiration period			19 months
Percent of maximum draw			120.00%
Pre-tax loss												(40,223)
Net of tax loss												29,685
HPPC and EK Holdings | Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture		$ 77,714
Pre-tax loss												(636)
Danival | Held for Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax loss											(13,052)
Current liabilities of discontinued operations				3,567							3,567
Goodwill impairment											394
Long-lived asset and intangibles impairment											12,658
Current assets of discontinued operations				$ 8,333							8,333
Tilda | Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture	$ 342,000				$ 341,800
Pre-tax loss						$ (540)	(3,752)				$ 9,386	0	$ 0
Net of tax loss						$ 362	$ 2,720
Current liabilities of discontinued operations												31,703
Current assets of discontinued operations												$ 110,048