Correction of Immaterial Errors To Prior Period Financial Statements - Segment Net Sales and Operating Income (Unaudited) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales	$ 681,464	$ 667,727
Operating Income	13,751	54,272
As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		687,188
Operating Income		57,468
Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(19,461)
Operating Income		(3,196)
Operating Segments [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales	681,464	667,727
Operating Income	30,650	64,261
Operating Segments [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		687,188
Operating Income		67,036
Operating Segments [Member] | Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(19,461)
Operating Income		(2,775)
Operating Segments [Member] | United States [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales	275,607	302,631
Operating Income	22,063	41,507
Operating Segments [Member] | United States [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		314,586
Operating Income		43,888
Operating Segments [Member] | United States [Member] | Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(11,955)
Operating Income		(2,381)
Operating Segments [Member] | United Kingdom [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales	198,776	160,855
Operating Income	4,550	9,842
Operating Segments [Member] | United Kingdom [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		165,354
Operating Income		10,204
Operating Segments [Member] | United Kingdom [Member] | Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(4,499)
Operating Income		(362)
Operating Segments [Member] | Hain Pure Protein [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales	116,669	123,055
Operating Income	(1,018)	10,489
Operating Segments [Member] | Hain Pure Protein [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		123,988
Operating Income		10,271
Operating Segments [Member] | Hain Pure Protein [Member] | Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(933)
Operating Income		218
Operating Segments [Member] | Rest of World [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales	90,412	81,186
Operating Income	5,055	2,423
Operating Segments [Member] | Rest of World [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		83,260
Operating Income		2,673
Operating Segments [Member] | Rest of World [Member] | Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(2,074)
Operating Income		(250)
Corporate and Other [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating Income	$ (16,899)	(9,989)
Corporate and Other [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating Income		(9,568)
Corporate and Other [Member] | Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating Income		$ (421)