Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Property, Plant and Equipment
Provision for doubtful accounts	$ 0	$ 2,024,000	$ 3,188,000
Allowance for Doubtful Accounts Receivable, Period Increase (Decrease)	1,000,000	400,000	(2,100,000)
Cost of goods sold	322,618,000	306,771,000	252,754,000
Property, Plant and Equipment, Gross	263,526,000	245,369,000
Antidilutive securities excluded from computation of earnings per share (in shares)	667,235	497,810	404,943
Goodwill and intangible assets impairment losses	5,585,000	7,805,000	0
Goodwill-related impairment charges	5,145,000
Maximum
Property, Plant and Equipment
Cash Equivalents and Short-term Investments, Maturity Period	180 days
Building
Property, Plant and Equipment
Property, Plant and Equipment, Gross	78,608,000	80,352,000
Building | Minimum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	10 years
Building | Maximum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	30 years
Distribution Center
Property, Plant and Equipment
Number of Real Estate Properties	6
Branch Warehouses
Property, Plant and Equipment
Number of Real Estate Properties	117
Machinery and Equipment
Property, Plant and Equipment
Property, Plant and Equipment, Gross	129,845,000	119,209,000
Machinery and Equipment | Minimum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	3 years
Machinery and Equipment | Maximum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	5 years
Office Equipment
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	5 years
Property, Plant and Equipment, Gross	16,818,000	16,839,000
Software and Software Development Costs
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	3 years
Property, Plant and Equipment, Gross	18,524,000	18,294,000
Coffee Brewing Equipment
Property, Plant and Equipment
Property, Plant and Equipment, Gross	13,900,000	12,700,000
Depreciation	12,200,000	9,600,000	6,100,000
Workforce Subject to Collective Bargaining Arrangements [Member]
Property, Plant and Equipment
Concentration Risk, Percentage	34.00%
J. M. Smucker
Property, Plant and Equipment
Other Receivables	800,000	4,900,000
Coffee Brewing Equipment and Service
Property, Plant and Equipment
Cost of goods sold	$ 24,900,000	$ 27,100,000	$ 21,500,000