Acquisitions and Disposals Acquisitions and Disposals (Fiscal 2014) (Narrative) (Details) - Disposal Groups, Including Discontinued Operations, Name [Domain] $ / shares in Units, £ in Thousands, CAD in Thousands, $ in Thousands		3 Months Ended								12 Months Ended
		Mar. 31, 2015 GBP (£) shares	Mar. 31, 2015 USD ($) shares	Mar. 31, 2015 CAD shares	Sep. 30, 2014 USD ($)	Jun. 30, 2014 GBP (£) shares	Jun. 30, 2014 USD ($) shares	Mar. 31, 2014 GBP (£) shares	Mar. 31, 2014 USD ($) shares	Jun. 30, 2015 USD ($) $ / shares shares	Jun. 30, 2014 USD ($) $ / shares shares	Jun. 30, 2013 USD ($) $ / shares shares	Mar. 04, 2015 USD ($)	Feb. 20, 2015 USD ($)	Jul. 17, 2014 USD ($)	Apr. 28, 2014 USD ($)	Jan. 13, 2014 USD ($)
Business Acquisition [Line Items]
Business Combination, Acquisition Related Costs										$ 5,731	$ 7,238	$ 5,461
Goodwill	[1]						$ 1,134,368			1,136,079	1,134,368	876,106
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles							41,976			14,621	41,976
Payments to Acquire Businesses, Net of Cash Acquired										$ 104,633	$ 177,290	$ 350,426
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares										462,856	3,559,834	3,396,944
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned							159,521			$ 19,690	$ 159,521	$ 102,636
Business Combination, Contingent Consideration, Liability							32,958			1,603	32,958	13,491
Business Acquisition, Cost of Acquired Entity, Cash Paid										91,893
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax												(3,616)
Investments and joint ventures							$ 36,511			2,305	36,511
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value										45,860
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee										8,256	0	0
Foreign Currency Transaction Gain (Loss), before Tax										3,397
FY'14 Acquisitions [Member]
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue											2,310,540	1,970,371
Payments to Acquire Businesses, Net of Cash Acquired											174,629
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax											$ 151,534	$ 139,085
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax, Per Share, Diluted | $ / shares											$ 1.49	$ 1.41
FY'15 Acquisitions [Member]
Business Acquisition [Line Items]
Goodwill										48,255
Business Acquisition, Pro Forma Revenue										2,797,368	$ 2,558,173
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax										$ 171,130	$ 148,215
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax, Per Share, Diluted | $ / shares										$ 1.65	$ 1.48
Empire Kosher [Member]
Business Acquisition [Line Items]
Goodwill													$ 30,844
Business Acquisition, Percentage of Voting Interests Acquired													81.00%		19.00%
Payments to Acquire Businesses, Net of Cash Acquired			$ 57,595
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned													$ 0
Business Combination, Contingent Consideration, Liability													$ 0
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value			9,786
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee			2,922
Hain Pure Protein [Member]
Business Acquisition [Line Items]
Goodwill															$ 14,484
Business Acquisition, Percentage of Voting Interests Acquired															51.30%
Equity Method Investment, Ownership Percentage							48.70%				48.70%
Business Combination, Contingent Consideration, Liability															$ 0
Business Acquisition, Cost of Acquired Entity, Cash Paid					$ 20,310
Investments and joint ventures							$ 30,740				$ 30,740
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value					36,074
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee					$ 5,334
Belvedere [Member]
Business Acquisition [Line Items]
Goodwill														$ 2,927
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned														0
Business Combination, Contingent Consideration, Liability														$ 1,603
Business Acquisition, Cost of Acquired Entity, Cash Paid			13,988	CAD 17,454
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value			$ 0
Rudis [Member]
Business Acquisition [Line Items]
Goodwill																$ 27,016
Payments to Acquire Businesses, Net of Cash Acquired | £						£ 50,807
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares						267,488	267,488
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned																$ 11,168
Other Payments to Acquire Businesses							$ 0
Tilda [Member]
Business Acquisition [Line Items]
Goodwill									$ 173,922
Payments to Acquire Businesses, Net of Cash Acquired | £								£ 123,822
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares		266,984	266,984	266,984				3,292,346	3,292,346
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned																	$ 148,353
Other Payments to Acquire Businesses		£ 10,000	$ 15,114					£ 20,000	$ 32,958
Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life										10 years 9 months	13 years 2 months	15 years 7 months
Trade Names [Member]
Business Acquisition [Line Items]
Indefinite-lived Intangible Assets Acquired										$ 45,667	$ 110,087	$ 139,337

[1] The total carrying value of goodwill for all periods in the table above is reflected net of $42,029 of accumulated impairment charges recorded during fiscal 2009 which relate to the Company’s United Kingdom and Europe operating segments.