Discontinued Operations (Statements of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net (loss) income from discontinued operations, net of tax	$ (65,385)	$ (12,555)	$ 3,973	$ 1,233	$ 1,817	$ (1,496)	$ 2,417	$ (849)	$ (72,734)	$ 1,889	$ 19,858
Hain Pure Protein | Held for Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales									509,475	509,606	492,510
Cost of sales									486,023	487,631	443,842
Gross profit									23,452	21,975	48,668
Asset impairments									78,464	0	0
Selling, general and administrative expense									18,743	19,180	15,740
Other expense									4,699	1,530	1,590
Net (loss) income from discontinued operations before income taxes									(78,454)	1,265	31,338
(Benefit) provision for income taxes									(5,720)	(624)	11,480
Net (loss) income from discontinued operations, net of tax									$ (72,734)	$ 1,889	$ 19,858