Correction of Immaterial Errors To Prior Period Financial Statements - Segment Net Sales and Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales	$ 706,563	$ 736,663	$ 2,128,026	$ 2,147,827
Operating Income	47,067	71,148	102,218	215,498
As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		749,862		2,189,639
Operating Income		69,007		214,197
Revisions [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(13,199)		(41,812)
Operating Income		2,141		1,301
Operating Segments [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		736,663		2,147,827
Operating Income	65,191	82,766	156,108	241,645
Operating Segments [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		749,862		2,189,639
Operating Income		81,574		240,413
Operating Segments [Member] | Revisions [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(13,199)		(41,812)
Operating Income		1,192		1,232
Operating Segments [Member] | United States [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		325,384		942,700
Operating Income	46,838	56,381	111,453	148,828
Operating Segments [Member] | United States [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		332,904		970,368
Operating Income		52,103		144,305
Operating Segments [Member] | United States [Member] | Revisions [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(7,520)		(27,668)
Operating Income		4,278		4,523
Operating Segments [Member] | United Kingdom [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		206,160		558,269
Operating Income	11,545	15,826	22,792	44,093
Operating Segments [Member] | United Kingdom [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		208,391		567,971
Operating Income		16,217		45,189
Operating Segments [Member] | United Kingdom [Member] | Revisions [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(2,231)		(9,702)
Operating Income		(391)		(1,096)
Operating Segments [Member] | Hain Pure Protein [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		112,213		379,459
Operating Income	(2,554)	2,427	(31)	31,078
Operating Segments [Member] | Hain Pure Protein [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		113,643		379,337
Operating Income		4,613		33,009
Operating Segments [Member] | Hain Pure Protein [Member] | Revisions [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(1,430)		122
Operating Income		(2,186)		(1,931)
Operating Segments [Member] | Rest of World [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		92,906		267,399
Operating Income	9,362	8,132	21,894	17,646
Operating Segments [Member] | Rest of World [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		94,924		271,963
Operating Income		8,641		17,910
Operating Segments [Member] | Rest of World [Member] | Revisions [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		(2,018)		(4,564)
Operating Income		(509)		(264)
Corporate and Other [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating Income	$ (18,124)	(11,618)	$ (53,890)	(26,147)
Corporate and Other [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating Income		(12,567)		(26,216)
Corporate and Other [Member] | Revisions [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating Income		$ 949		$ 69